JPS6335758A - Oxide dispersion-strengthened-type high-manganese austenitic stainless steel - Google Patents
Oxide dispersion-strengthened-type high-manganese austenitic stainless steelInfo
- Publication number
- JPS6335758A JPS6335758A JP17784186A JP17784186A JPS6335758A JP S6335758 A JPS6335758 A JP S6335758A JP 17784186 A JP17784186 A JP 17784186A JP 17784186 A JP17784186 A JP 17784186A JP S6335758 A JPS6335758 A JP S6335758A
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- Japan
- Prior art keywords
- less
- oxide dispersion
- toughness
- steel
- particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000011572 manganese Substances 0.000 title claims abstract description 46
- 229910052748 manganese Inorganic materials 0.000 title claims abstract description 31
- 229910000963 austenitic stainless steel Inorganic materials 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 14
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 8
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 7
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract 4
- 239000002245 particle Substances 0.000 claims description 27
- 229910001175 oxide dispersion-strengthened alloy Inorganic materials 0.000 claims description 14
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910001566 austenite Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 7
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 12
- 239000000956 alloy Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 8
- 230000007423 decrease Effects 0.000 description 4
- 230000004927 fusion Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910018487 Ni—Cr Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241000556720 Manga Species 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 229910018651 Mn—Ni Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- ZPUCINDJVBIVPJ-LJISPDSOSA-N ***e Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910001068 laves phase Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、非磁性で高強度及び高靭性を有する安価な
オーステナイト鋼、％に核融合炉の第一壁用材料に好適
な高マンガンオーステナイト鋼に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention is an inexpensive austenitic steel that is non-magnetic, has high strength and high toughness, and is a high-manganese austenite steel suitable for the first wall material of a fusion reactor. It's about steel.
一般に、耐熱鋼にはフェライト系のＣｒ −Ｍｏ鋼及び
オーステナイト系のＮｉ −Ｃｒ ＠が実用に供されて
いる。Generally, ferritic Cr-Mo steel and austenitic Ni-Cr@ are used as heat-resistant steels.
しかし、前者の鋼は溶接後の熱処理の煩雑さ及び供用中
の脆化等に問題があり、後者の鋼は使いやすいが高価な
ことが問題となっている。この両刀の欠点を補う鋼とし
ては、高価なＮｉの一部（ｉ７Ｍｎで置換した合金が既
に開発されている。既ち、これら合金としては、
■特公昭４６−１９７７５号（特許第６８６３７７号）
には、Ｃ： ０．０３〜０．３０％、Ｃｒ： １５〜２
１チ、Ｍｎ： ４〜１５ ％、 Ｔｉ： ０．００１〜
０．５％他Ｂ。However, the former steel has problems such as complicated heat treatment after welding and embrittlement during service, while the latter steel is easy to use but expensive. As a steel that compensates for the drawbacks of these two swords, alloys in which a portion of the expensive Ni (i7Mn) has been replaced have already been developed.
C: 0.03-0.30%, Cr: 15-2
1 Ti, Mn: 4-15%, Ti: 0.001-
0.5% other B.
■を任意元始として含有し、残部Ｆｅからなる合金鋼が
記載されている。An alloy steel containing (2) as an optional element, with the balance consisting of Fe is described.
■Ｅ４１ｈａｔｅ １２５０ ’１１４はｃ：（０，１
５％、Ｍｎ： ６．２５ ％、Ｃｒ：１５％、Ｎｉ：１
０％、Ｍｏ：２．０％、Ｖ：（０，４％、Ｎｂ：（１，
２４％、Ｂ：＜０．００７％を含有し、残部Ｆｅからな
る合金鮨である。■E41hate 1250 '114 is c: (0,1
5%, Mn: 6.25%, Cr: 15%, Ni: 1
0%, Mo: 2.0%, V: (0.4%, Nb: (1,
24%, B:<0.007%, and the balance is Fe.
■またＪＩＳ規格には次のような合金がある。■The JIS standard also includes the following alloys.
−規定なし
■非磁性高マンガン鋼としては、０．８Ｃ−１６Ｍｎ
−２Ｃｒ鋼（ＮＭ−ＩＩ日本鋼管）がある。- No regulations■ As non-magnetic high manganese steel, 0.8C-16Mn
-2Cr steel (NM-II Nippon Kokan).
前記■の鋼は、本発明の主旨に近いものであるが、Ｎ１
７Ｍｎ＝０．３３〜３．７５であり、Ｍｎの１／３はＮ
ｉの必要性を認めている。The above-mentioned steel (①) is close to the gist of the present invention, but N1
7Mn=0.33 to 3.75, and 1/3 of Mn is N
Recognizes the necessity of i.
また■のＥｓａｈ＠ｔｏ１２５０合金も、本発明の主旨
に近いものであるが、Ｎｉ／Ｍｎ ＝ １．６とかなシ
高価なＮ１を必要としている。The Esah@to1250 alloy (2) is also close to the gist of the present invention, but requires an expensive N1 such as Ni/Mn = 1.6.
■のＪＩＳ Ｋ認知されているＣｒ −Ｍｎ−Ｎｉ
鋼においては、
５ＵＳ２０１： Ｎｔ／Ｍｎ＝０．４６〜１．０ＳＵ
Ｓ２１６： Ｎｉ／Ｍｎ ＝ ０．ｓ ５〜０．９５
ＳＵＳ２０５： Ｎｉ／Ｍｎ＝０．０６〜０．１２５
であシ、
Ｎ ｉ ／ Ｍｎの比が小さい５ＵＳ２０Ｓ 鋼の高温
強度は十分ではない。■ JIS K recognized Cr-Mn-Ni
In steel, 5US201: Nt/Mn=0.46-1.0SU
S216: Ni/Mn = 0. s 5~0.95
SUS205: Ni/Mn=0.06~0.125
However, the high temperature strength of 5US20S steel with a small Ni/Mn ratio is not sufficient.
■の非磁性調高マンガｙ鋼においては、Ｎｉを全く含ま
ないが、高温強度は全く期待できない。The non-magnetic high-temperature manga y steel (2) does not contain any Ni, but high-temperature strength cannot be expected at all.
以上のように、現状では安価かつ完全な高強度耐熱鋼は
発明されていない。As mentioned above, at present, an inexpensive and perfect high-strength heat-resistant steel has not been invented.
本発明は、従来よりもＮｉ／ Ｍｎの比の低い材料的に
未知の分野で、高い高温強度を有する安価なオーステナ
イト鋼、特に核融合炉の第１壁用材料に好適な高マンガ
ンオーステナイト鋼を提供することを目的とするもので
ある。The present invention aims to develop an inexpensive austenitic steel with high high-temperature strength in an unknown field of materials with a lower Ni/Mn ratio than before, particularly a high-manganese austenitic steel suitable for the first wall material of a fusion reactor. The purpose is to provide
本発明の酸化物分敵強化型高マンガンオーステナイト鋼
は次の如く、
第１発明鋼は、Ｆｅ基の合金であり重Ａｌ：基準でＣｏ
０．０１〜１．０％
Ｍｎ： １ ’ｌ 〜５ ［］％
Ｃｒ：２〜２０％
Ｓｌ：０．１〜５．０％
Ａ！：０．０１〜４．０％
Ｎ：Ｇ、２５％以下
Ｙ、０３：０．１〜５％残部がＦｅ 及び不可避不純
物から成る合金でありＹ、 Ｏ，は粒径１μｍ以下の粒
子として分散させた酸化物分散強化型高Ｍｎ オース
テナイト鋼。The oxide-strengthened high manganese austenitic steel of the present invention is as follows: The first invention steel is a Fe-based alloy with heavy Al: Co
0.01 to 1.0% Mn: 1'l to 5 []% Cr: 2 to 20% Sl: 0.1 to 5.0% A! : 0.01~4.0% N: G, 25% or less Y, 03: 0.1~5% An alloy consisting of Fe and unavoidable impurities, and Y, O, and are dispersed as particles with a particle size of 1 μm or less. oxide dispersion strengthened high Mn austenitic steel.
第２発明鋼は、
Ｃ：０．０１〜１．０％
Ｍｎ： １２〜５０％
Ｃｒ： ２〜２０％
Ｓｌ：０．１〜５６０％
、ｕ：０．０１〜４．０％
Ｎ：０．２５％以下
Ｙ！へ８０．１〜５％
に加え、Ｍｏ： ０．１〜５％、Ｗ：０．１〜５％の１
種又は２″ｍを含む合金であシ、Ｙ！へは粒径１μｍ以
下の粒子として分散させた酸化物分散強化型窩Ｍｎオー
ステナイト鋼。The second invention steel is as follows: C: 0.01-1.0% Mn: 12-50% Cr: 2-20% Sl: 0.1-560%, u: 0.01-4.0% N: 0 .25% or less Y! In addition to 80.1 to 5%, Mo: 0.1 to 5%, W: 0.1 to 5%.
Y! is an oxide dispersion strengthened cavity Mn austenitic steel dispersed as particles with a grain size of 1 μm or less.
第３発明鋼は、
Ｃ：０．０１〜１．０％
Ｍｎ： １２〜５０％
Ｃｒ： ２〜２０％
Ｓｉ：０．１〜５．０％
Ａ！：Ｏ，［１１〜４． ［］％
Ｎ：０．２５％以下
Ｙ！Ｏｓ ： ０．１〜５ ％
に加え、さらにＴｉ：０．０１〜１．０％、Ｎｂ：０．
ｏ ｉ 〜ｉ、 ｏ％、Ｔａ： Ｏ，Ｑ １〜１．
０ ％、Ｚｒ：０、００５〜０．２％のうち１種以上を
含有し、かつ次式で示されろＴＩ当ｆｉ：０．３〜１０
でＴｉ当％ ＝ （Ｔｉ＋Ｔａ＋２Ｎｂ＋４Ｚｒ）／（
”Ｎ）であり、Ｙ、 Ｏ，は粒径１μｍ以下の粒子とし
て分散させた酸化物分散強化匿高Ｍｎオーステナイト鋼
。The third invention steel is as follows: C: 0.01-1.0% Mn: 12-50% Cr: 2-20% Si: 0.1-5.0% A! :O, [11-4. []% N: 0.25% or less Y! In addition to Os: 0.1-5%, Ti: 0.01-1.0%, Nb: 0.
o i ~i, o%, Ta: O, Q 1~1.
0%, Zr: 0, contains one or more of 005 to 0.2%, and is represented by the following formula: TI fi: 0.3 to 10
and Ti equivalent % = (Ti+Ta+2Nb+4Zr)/(
"N), Y, O, is an oxide dispersion strengthened high Mn austenitic steel dispersed as particles with a particle size of 1 μm or less.
第４発明鋼は、
Ｃ：０．０１〜１．０％
Ｍｎ：１２〜５０％
Ｃｒ： ’１〜２０％
Ｓｉ：０．ｉ〜５．０％
Ａ１．：０．０１〜４．０係
Ｎ：０．２５％以下
ＹｔＯ，： ０．１〜５％
に加え、：ｌｏ： ０−１〜５％、ｗ ： ０．１〜５
％のうち１種又は２ ！Ｉ全青みさらに、Ｔｉ：０．０
１〜１、ロ％、Ｎｂ： ０．０１〜’ｌ−ロ％、 Ｔ
ａ： ０．０１〜１．０・声、Ｚｒ： ０．００５〜０
．２％のうち１ね以上を含有し、かつ次式で示されるで
１当ｆｔ：０．３〜１０で
Ｔｉ当量＝（Ｔｔ＋ｒａ＋２Ｎｂ＋４ｚｒ）／（ｃ＋Ｎ
）であシ、Ｙ２Ｏ，は粒径１μｍ以下の粒子として分散
させた酸化物分散強化型窩Ｍｎオーステナイ ト鋼。The fourth invention steel is as follows: C: 0.01-1.0% Mn: 12-50% Cr: '1-20% Si: 0. i~5.0% A1. : 0.01-4.0 N: 0.25% or less YtO: 0.1-5% In addition: lo: 0-1-5%, w: 0.1-5
1 or 2 of the %! I total blueness, Ti: 0.0
1~1, ro%, Nb: 0.01~'l-ro%, T
a: 0.01~1.0・Voice, Zr: 0.005~0
．． Ti equivalent = (Tt+ra+2Nb+4zr)/(c+N
)Dashi, Y2O, is an oxide dispersion-strengthened cavity Mn austenitic steel dispersed as particles with a grain size of 1 μm or less.
第５発明〜第８発明鋼は、前述の第１発明〜第４発明鋼
夫々にＮｉ：１０％以下、Ｃｏ ： ５％以下、Ｃｕ：
１０％以下のうち１種以上を含むことを加え、Ｙ、０３
を粒径１μｍ以下の粒子として分散させた酸化物分散
強化型窩Ｍｎ オーステナイト鋼である。The fifth to eighth invention steels each contain Ni: 10% or less, Co: 5% or less, and Cu:
In addition to containing one or more of 10% or less, Y, 03
This is an oxide dispersion-strengthened Mn austenitic steel in which Mn is dispersed as particles with a particle size of 1 μm or less.
次に本願発明鋼の作用および合金組成成分の限定理由に
ついて述べる。Next, the action of the steel of the present invention and the reason for limiting the alloy composition components will be described.
■第１発明（基本組成）
Ｃ：炭化物を生じせしめて高温強度を上昇させるために
は最小限０．０１％（ｗｔ％以下同じ）が必要であυ、
１．０％を超えると硬化が著しくなるので、その範囲を
０．０１〜１．０％と定めた。■First invention (basic composition) C: In order to generate carbides and increase high-temperature strength, a minimum of 0.01% (same as below wt%) is required υ,
If it exceeds 1.0%, hardening becomes significant, so the range was set at 0.01 to 1.0%.
ｒム：オーステナ−ｆ ト相を安定化するためには、最
小限１２％必要であるが、５０％を超えると硬化が著し
くなるので、その範囲を１２〜５０％と定めた。rm: In order to stabilize the austenate phase, a minimum amount of 12% is required, but if it exceeds 50%, hardening becomes significant, so the range was set at 12 to 50%.
Ｃｒ：耐食性を得るためには最小限２％を必要とする。Cr: A minimum content of 2% is required to obtain corrosion resistance.
ただし２０チを超えると、σ相脆化を超こし易くなるの
で、その範囲を２〜２０チと定めた。However, if it exceeds 20 inches, sigma phase embrittlement is likely to occur, so the range was set as 2 to 20 inches.
Ｓｌ：耐酸化性を高め脱酸性を良（するためには、最小
限０．１％必要であるが、５．０％を超えると脆化が著
しくなるので、その範囲を０．１〜５．０％と定めた。Sl: In order to increase oxidation resistance and have good deoxidation properties, a minimum of 0.1% is required, but if it exceeds 5.0%, embrittlement will become significant, so the range should be reduced to 0.1 to 5%. It was set as .0%.
Ａ！：耐酸化性を得るため、および脱酸ＡＩＪとして作
用させるためＫは、最小限０．０１％必要であるが、４
．０％を超えると高温強度が低下するので、その範囲’
ｋ ０．０１−４．０飴と定めた・
Ｎ：ＮはＣの代わシに添加することによって、Ｃｒの炭
化物の形成、その周辺に形成されるＣｒの欠乏層、それ
による耐食性の低下を防止することができる。但し過剰
の窒素添加は硬化を招くので上限を０．２５％と定めた
。A! : In order to obtain oxidation resistance and to act as deoxidizing AIJ, K is required at a minimum of 0.01%, but 4
．． If it exceeds 0%, the high-temperature strength will decrease, so the range'
k 0.01-4.0 ・N: By adding N in place of C, it prevents the formation of Cr carbides, the Cr-deficient layer formed around them, and the resulting decrease in corrosion resistance. It can be prevented. However, since excessive nitrogen addition causes hardening, the upper limit was set at 0.25%.
Ｙｘ Ｏｓ ： Ｙｔ Ｏｓは粒径１μ風以下の粒子と
して合金中に分散して強度を上昇させる。０．１％未満
の添加量では効果が小さく、５％を超えると靭性が低下
する。粒径についても１μｍを超えると疲労特性が悪化
する。Yx Os: Yt Os is dispersed in the alloy as particles with a particle size of 1 μm or less to increase strength. If the amount added is less than 0.1%, the effect will be small, and if it exceeds 5%, the toughness will decrease. If the particle size exceeds 1 μm, the fatigue properties will deteriorate.
■第２発明鋼は上記基本組成元素の他にＭ０． Ｗを１
種以上含む。■The second invention steel has M0. 1 W
Contains more than one species.
Ｍ０． Ｗ： Ｍ０． Ｗは強度向上のために添加する
が過剰に添加するとσ相、ラーベス相の析出によシ脆化
を引き起すので上限を５％とした。M0. W: M0. W is added to improve strength, but excessive addition causes embrittlement due to precipitation of σ phase and Laves phase, so the upper limit was set at 5%.
０．１％未満の添加は強度の向上が認められ （ない
ので、これを下限値とした。When less than 0.1% was added, an improvement in strength was observed (there was no improvement, so this was set as the lower limit).
■８ｇ３発明は第１発明鋼の元素の他にＴｉ 、 Ｎｂ
、 Ｔａ 。■The 8g3 invention contains Ti and Nb in addition to the elements of the first invention steel.
, Ta.
Ｚｒを１種以上含む。Contains one or more types of Zr.
ＴＩ、 Ｎｂ、 Ｔａ、 Ｚｒ ：
Ｔｉ：０．０１〜１．０％ （
Ｎｂ： α０１〜１．０％
Ｔａ： ０．０１〜１．Ｏｆｂ
Ｚｒ： ０．００５〜（Ｌ ２ Ｔ。TI, Nb, Ta, Zr: Ti: 0.01-1.0% (
Nb: α01-1.0% Ta: 0.01-1. Ofb Zr: 0.005~(L2T.
上記元素は、それぞれ強化元素であシ、上記元素のうち
１種以上を下記の関係を満たすよう忙添加する。それぞ
れの下限値未溝では強化作用は小さく、またそれぞれの
上限値を超えると靭性が低下するのでそれぞれの範囲を
上記の如く定めた。Each of the above elements is a reinforcing element, and one or more of the above elements is added so as to satisfy the following relationship. The reinforcing effect is small when the lower limit values are not grooved, and the toughness decreases when the upper limit values are exceeded, so the respective ranges were determined as described above.
ＴＩ重量＝ （Ｔｉ＋Ｔａ＋ ２Ｎｂ＋４Ｚｒ）／（Ｃ
十Ｎ）ａ３≦ ＴＩ当量≦１０
ＴＩ当量が１０を超えるとσ相の析出が誘起され、脆化
を招く。またＴｉａ量がα３未満では十分な強化作用を
示さない。TI weight = (Ti+Ta+ 2Nb+4Zr)/(C
10N) a3≦TI equivalent≦10 When the TI equivalent exceeds 10, precipitation of the σ phase is induced, leading to embrittlement. Further, if the amount of Tia is less than α3, sufficient reinforcing effect is not exhibited.
■第４発明鋼は、
第１発明鋼の組成に加えて、Ｍ０． Ｗのうちの１種以
上とＴＩ、 Ｎｂ、 Ｔａ、 Ｚｒのうちの１種以上を
含有する合金であシそれぞれの作用は第２発明あるいは
第３発明と同じ。■The fourth invention steel has, in addition to the composition of the first invention steel, M0. An alloy containing one or more of W and one or more of TI, Nb, Ta, and Zr.The respective functions are the same as those of the second invention or the third invention.
■第５〜８発明鋼は
第１〜４発明鋼にＮｉ’、 Ｃ０． Ｃｕのうち１種
以上を添加したもので、これら元素は相の安定化および
耐酸化性の向上に効果がある。しかし添加量がそれぞれ
１０％、５％、１０％を超えると合金の製造コストが高
くなるので、夫々を上限に定めた。■The 5th to 8th invention steels are the 1st to 4th invention steels with Ni', C0. One or more types of Cu are added, and these elements are effective in stabilizing the phase and improving oxidation resistance. However, if the amount added exceeds 10%, 5%, or 10%, the manufacturing cost of the alloy increases, so the upper limits were set for each.
次に本発明の実施例について述べる。Next, examples of the present invention will be described.
表１に示す、本発明合金組成を有する合金はＦｅ。 The alloy having the alloy composition of the present invention shown in Table 1 is Fe.
で合計ａ５ゆの粉末を６８ｔのアトライターで１８０時
のスチールボールを用いて２０ Ｏｒｐｍの回転数で２
０ ｈｒ混合し、ψ８０に１５０鑓の炭素鋼のキャンに
入れ熱間押し出しによりψ３０とすることによシ得た。A total of A5 powder was mixed with a 68t attritor using a 180° steel ball at a rotation speed of 20 orpm.
The mixture was mixed for 0 hr, placed in a carbon steel can with a diameter of 80 mm and 150 mm, and heated to a diameter of 30 mm by hot extrusion.
比較合金の一部は５０に’／高周波炉にて漕力し、熱間
圧Ｒ１！−することによって得た。Some of the comparison alloys were heated to 50'/ in a high frequency furnace to a hot pressure of R1! - obtained by doing.
高温強度については６５０℃１０００時間の応力を求め
た。Regarding high temperature strength, stress at 650°C for 1000 hours was determined.
靭性についてはシャルビ吸収エネルギーｖＥ６（０℃、
２躊Ｖノツチ１０Ｘ１０ｉ）を求めた。Regarding toughness, Charby absorbed energy vE6 (0℃,
2) V notch 10×10i) was determined.
その結果を表１に示す。また、図にクリープ強度とシャ
ルビ吸収エネルギーとの関係を示した。The results are shown in Table 1. The figure also shows the relationship between creep strength and Charby absorbed energy.
尚図中○印は比較鋼、・印は本発明鋼を示す。In the figure, the ○ mark indicates the comparison steel, and the * mark indicates the invention steel.
比較鋼３２．３３はＪＩＳに制定されたＮｉ代替鋼であ
るが、靭性は十分であるが強度が不足する・２４．２５
はＭｎが不足な例と過剰な例でありどちらとも靭性が充
分でない。２６は発明鋼からＣｒ含有量を減じたもので
あシ、クリープ強度、靭性は十分であるが、耐高温酸化
性能が悪いことがわかる。２７はクリープ強度、靭性に
優れているが、Ｃｒ含有量が高すぎろため靭性が十分で
ない。Comparative steel 32.33 is a Ni substitute steel specified by JIS, but it has sufficient toughness but lacks strength.・24.25
These are examples in which Mn is insufficient and in which Mn is excessive, and both have insufficient toughness. Steel No. 26 is obtained by reducing the Cr content from the invention steel, and although it has sufficient creep strength and toughness, it can be seen that the high temperature oxidation resistance is poor. Although No. 27 has excellent creep strength and toughness, the Cr content is too high, so the toughness is not sufficient.
２８．２’９．３０は夫々Ｓ ｌ、 Ａｌ 、 Ｙｔ
Ｏｓが高すぎるため靭性がないことがわかる。３１＠
はＹ、０．が入っていないためクリープ強度が著しく低
い。３４〜３９ｍは強化元素の過剰添加により靭性が十
分でないＯ
本実、験では、添加する酸化物としてＹ、 Ｏ５のみと
対象としたが、Ｙ２Ｏ３と比重がほぼ等しく、母相と反
応しないと考えられる。28.2'9.30 are respectively S l, Al, Yt
It can be seen that there is no toughness because Os is too high. 31@
is Y, 0. Creep strength is extremely low because it does not contain 34-39m does not have sufficient toughness due to excessive addition of reinforcing elements. In this experiment, only Y and O5 were considered as oxides to be added, but it is thought that they have almost the same specific gravity as Y2O3 and do not react with the matrix. It will be done.
Ｃ１！ｌ！ Ｏ３、Ｌａｇ ０． 、 ＢａＺｒＯ３１
Ｚｒｌ ０． 、 ＣａＺｒＯｓ １Ａｌｌ Ｏ３、Ｃ
ｒｔ ＯＢ 、 Ｙｂ２０ＳでＹ２Ｏ，の一部ないし全
部１ｃｔ換しても、本発明と同等の高強度材が得られる
ことは明らかである。C1! l! O3, Lag 0. , BaZrO31
Zrl 0. , CaZrOs 1All O3,C
It is clear that a high-strength material equivalent to that of the present invention can be obtained even if rt OB or Yb20S is used to replace part or all of Y2O by 1 ct.
本発明の高温強度の優れた酸化物分散強化型高マンガン
オーステナイト鋼は、現在の核融合炉の第１壁用材料に
比べ安価、低放射化、高靭性、高温度の材料であシ、核
融合炉の建設をよυ、具体化出来るものであシ、現在の
オーステナイトＮｉ−Ｃｒ鋼に代わる汎用材料となる。The oxide dispersion-strengthened high-manganese austenitic steel of the present invention, which has excellent high-temperature strength, is a material that is cheaper, has lower activation, has higher toughness, and has higher temperatures than the materials for the first wall of current fusion reactors. If it can be realized in the construction of fusion reactors, it will become a general-purpose material that can replace the current austenitic Ni-Cr steel.
又応用分野としてボイラ用鋼、軽水炉配管、高速炉炉芯
材料、燃料電池部材、化学プラント部材、機械部品用材
料等に適用されることが容易に考えられるものである。In addition, it can easily be considered that the present invention can be applied to boiler steel, light water reactor piping, fast reactor core materials, fuel cell components, chemical plant components, mechanical parts materials, etc. as application fields.
第１図は、実施例におけるクリープ破断強度と吸収エネ
ルギーの散布図である。
代理人 弁理士 佐 藤 正 年
第 １ 図FIG. 1 is a scatter diagram of creep rupture strength and absorbed energy in Examples. Agent Patent Attorney Tadashi Sato Figure 1
Claims (8)
〜５０％、Ｃｒ：２〜２０％、Ｓｉ：０．１〜５％、Ａ
ｌ：０．０１〜４％、Ｎ：０．２５％以下、Ｙ＿２Ｏ＿
３：０．１〜５％を含み、残部がＦｅ及び不可避不純物
から成り、Ｙ＿２Ｏ＿３を粒径１μｍ以下の粒子として
分散させた強度及び靭性にすぐれた酸化物分散強化型高
マンガンオーステナイト鋼。(1) Based on weight, C: 0.01-1%, Mn: 12
~50%, Cr: 2-20%, Si: 0.1-5%, A
l: 0.01-4%, N: 0.25% or less, Y_2O_
3: An oxide dispersion strengthened high manganese austenitic steel containing 0.1 to 5%, the remainder consisting of Fe and unavoidable impurities, and having excellent strength and toughness in which Y_2O_3 is dispersed as particles with a particle size of 1 μm or less.
〜５０％、Ｃｒ：２〜２０％、Ｓｉ：０．１〜５％、Ａ
ｌ：０．０１〜４％、Ｎ：０．２５％以下、Ｙ＿２Ｏ＿
３：０．１〜５％を含み、かつＭｏ：０．１〜５％、Ｗ
：０．１〜５％の１種又は２種を含み、残部がＦｅ及び
不可避不純物から成り、Ｙ＿２Ｏ＿３を粒径１μｍ以下
の粒子として分散させた強度及び靭性にすぐれた酸化物
分散強化型高マンガンオーステナイト鋼。(2) Based on weight, C: 0.01-1%, Mn: 12
~50%, Cr: 2-20%, Si: 0.1-5%, A
l: 0.01-4%, N: 0.25% or less, Y_2O_
3: 0.1 to 5%, and Mo: 0.1 to 5%, W
: Contains 0.1 to 5% of one or two types, the balance consists of Fe and unavoidable impurities, and has Y_2O_3 dispersed as particles with a particle size of 1 μm or less. Oxide dispersion-strengthened high manganese with excellent strength and toughness. Austenitic steel.
〜５０％、Ｃｒ：２〜２０％、Ｓｉ：０．１〜５％、Ａ
ｌ：０．０１〜４％、Ｎ：０．２５％以下、Ｙ＿２Ｏ＿
３：０．１〜５％を含み、かつＴｉ：０．０１〜１％、
Ｎｂ：０．０１〜１％、Ｔａ：０．０１〜１％、Ｚｒ：
０．００５〜０．２％の１種以上を含み、かつ次に示す
Ｔｉ当量が（Ｔｉ＋Ｔａ＋２Ｎｂ＋４Ｚｒ）／（Ｃ＋Ｎ
）：０．３〜１０を満足し残部がＦｅ及び不可避不純物
から成り、Ｙ＿２Ｏ＿３を粒径１μｍ以下の粒子として
分散させた強度及び靭性にすぐれた酸化物分散強化型高
マンガンオーステナイト鋼。(3) Based on weight, C: 0.01-1%, Mn: 12
~50%, Cr: 2-20%, Si: 0.1-5%, A
l: 0.01-4%, N: 0.25% or less, Y_2O_
3: 0.1 to 5%, and Ti: 0.01 to 1%,
Nb: 0.01-1%, Ta: 0.01-1%, Zr:
Contains 0.005 to 0.2% of one or more kinds, and the following Ti equivalent is (Ti+Ta+2Nb+4Zr)/(C+N
): An oxide dispersion strengthened high manganese austenitic steel that satisfies 0.3 to 10, the balance is Fe and unavoidable impurities, and has excellent strength and toughness in which Y_2O_3 is dispersed as particles with a particle size of 1 μm or less.
〜５０％、Ｃｒ：２〜２０％、Ｓｉ：０．１〜５％、Ａ
ｌ：０．０１〜４％、Ｎ：０．２５％以下、Ｙ＿２Ｏ＿
３：０．１〜５％を含み、かつＭｏ：０．１〜５％、Ｗ
：０．１〜５％の１種又は２種を含み、かつＴｉ：０．
０１〜１％、Ｎｂ：０．０１〜１％、Ｔａ：０．０１〜
１％、Ｚｒ：０．００５〜０．２％の１種以上を含み、
かつ次に示すＴｉ当量が（Ｔｉ＋Ｔａ＋２Ｎｂ＋４Ｚｒ
）／（Ｃ＋Ｎ）：０．３〜１０を満足し、残部がＦｅ及
び不可避不純物から成り、Ｙ＿２Ｏ＿３を粒径１μｍ以
下の粒子として分散させた強度及び靭性にすぐれた酸化
物分散強化型高マンガンオーステナイト鋼。(4) Based on weight, C: 0.01-1%, Mn: 12
~50%, Cr: 2-20%, Si: 0.1-5%, A
l: 0.01-4%, N: 0.25% or less, Y_2O_
3: 0.1 to 5%, and Mo: 0.1 to 5%, W
: 0.1 to 5% of one or two kinds, and Ti: 0.
01~1%, Nb: 0.01~1%, Ta: 0.01~
1%, Zr: 0.005 to 0.2%,
And the following Ti equivalent is (Ti+Ta+2Nb+4Zr
)/(C+N): 0.3 to 10, the remainder consists of Fe and unavoidable impurities, and Y_2O_3 is dispersed as particles with a particle size of 1 μm or less. Oxide dispersion strengthened high manganese austenite with excellent strength and toughness. steel.
〜５０％、Ｃｒ：２〜２０％、Ｓｉ：０．１〜５％、Ａ
ｌ：０．０１〜４％、Ｎ：０．２５％以下、Ｙ＿２Ｏ＿
３：０．１〜５％を含み、Ｎｉ：１０％以下、Ｃｏ：５
％以下、Ｃｕ：１０％以下の１種以上を含み、残部がＦ
ｅ及び不可避不純物から成り、Ｙ＿２Ｏ＿３を粒径１μ
ｍ以下の粒子として分散させた強度及び靭性にすぐれた
酸化物分散強化型高マンガンオーステナイト鋼。(5) Based on weight, C: 0.01-1%, Mn: 12
~50%, Cr: 2-20%, Si: 0.1-5%, A
l: 0.01-4%, N: 0.25% or less, Y_2O_
3: Contains 0.1 to 5%, Ni: 10% or less, Co: 5
% or less, Cu: contains one or more of 10% or less, and the balance is F
Y_2O_3 with a particle size of 1μ
Oxide dispersion-strengthened high manganese austenitic steel with excellent strength and toughness dispersed as particles of 500 yen or less.
〜５０％、Ｃｒ：２〜２０％、Ｓｉ：０．１〜５％、Ａ
ｌ：０．０１〜４％、Ｎ：０．２５％以下Ｙ＿２Ｏ＿３
：０．１〜５％を含み、Ｎｉ：１０％以下、Ｃｏ：５％
以下、Ｃｕ：１０％以下の１種以上を含み、かつＭｏ：
０．１〜５％、Ｗ：０．１〜５％の１種又は２種を含み
残部がＦｅ及び不可避不純物から成り、Ｙ＿２Ｏ＿３を
粒径１μｍ以下の粒子として分散させた強度及び靭性に
すぐれた酸化物分散強化型高マンガンオーステナイト鋼
。(6) Based on weight, C: 0.01-1%, Mn: 12
~50%, Cr: 2-20%, Si: 0.1-5%, A
L: 0.01-4%, N: 0.25% or less Y_2O_3
: Contains 0.1 to 5%, Ni: 10% or less, Co: 5%
The following contains one or more types of Cu: 10% or less, and Mo:
0.1 to 5%, W: 0.1 to 5%, the balance is Fe and unavoidable impurities, and Y_2O_3 is dispersed as particles with a particle size of 1 μm or less. Excellent strength and toughness. Oxide dispersion strengthened high manganese austenitic steel.
〜５０％、Ｃｒ：２〜２０％、Ｓｉ：０．１〜５％、Ａ
ｌ：０．０１〜４％、Ｎ：０．２５％以下、Ｙ＿２Ｏ＿
３：０．１〜５％を含み、Ｎｉ：１０％以下、Ｃｏ：５
％以下、Ｃｕ：１０％以下の１種以上を含み、かつＴｉ
：０．０１〜１％、Ｎｂ：０．０１〜１％、Ｔｉ：０．
０１〜１％、Ｚｒ：０．００５〜０．２％の１種以上を
含み、かつ次に示すＴｉ当量が（Ｔｉ＋Ｔａ＋２Ｎｂ＋
４Ｚｒ）／（Ｃ＋Ｎ）：０．３〜１０を満足し、残部が
Ｆｅ及び不可避不純物から成り、Ｙ＿２Ｏ＿３を粒径１
μｍ以下の粒子として分散させた強度及び靭性にすぐれ
た酸化物分散強化型高マンガンオーステナイト鋼。(7) Based on weight, C: 0.01-1%, Mn: 12
~50%, Cr: 2-20%, Si: 0.1-5%, A
l: 0.01-4%, N: 0.25% or less, Y_2O_
3: Contains 0.1 to 5%, Ni: 10% or less, Co: 5
% or less, Cu: contains one or more of 10% or less, and Ti
:0.01-1%, Nb:0.01-1%, Ti:0.
01-1%, Zr: 0.005-0.2%, and the Ti equivalent shown below is (Ti+Ta+2Nb+
4Zr)/(C+N): satisfies 0.3 to 10, the remainder consists of Fe and unavoidable impurities, and Y_2O_3 has a particle size of 1
Oxide dispersion-strengthened high manganese austenitic steel with excellent strength and toughness dispersed as micrometer or smaller particles.
〜５０％、Ｃｒ：２〜２０％、Ｓｉ：０．１〜５％、Ａ
ｌ：０．０１〜４％、Ｎ：０．２５％以下、Ｙ＿２Ｏ＿
３：０．１〜５％を含み、Ｎｉ：１０％以下、Ｃｏ：５
％以下、Ｃｕ：１０％以下の１種以上を含み、かつＭｏ
：０．１〜５％、Ｗ：０．１〜５％の１種又は２種を含
み、かつＴｉ：０．０１〜１％、Ｎｂ：０．０１〜１％
、Ｔａ：０．０１〜１％、Ｚｒ：０．００５〜０．２％
の１種以上を含み、かつ次に示すＴｉ当量が（Ｔｉ＋Ｔ
ａ＋２Ｎｂ＋４Ｚｒ）／（Ｃ＋Ｎ）：０．３〜１０を満
足し、残部がＦｅ及び不可避不純物から成り、Ｙ＿２Ｏ
＿３を粒径１μｍ以下の粒子として分散させた強度及び
靭性にすぐれた酸化物分散強化型高マンガンオーステナ
イト鋼。(8) Based on weight, C: 0.01-1%, Mn: 12
~50%, Cr: 2-20%, Si: 0.1-5%, A
l: 0.01-4%, N: 0.25% or less, Y_2O_
3: Contains 0.1 to 5%, Ni: 10% or less, Co: 5
% or less, Cu: contains one or more of 10% or less, and Mo
: 0.1-5%, W: 0.1-5%, and includes Ti: 0.01-1%, Nb: 0.01-1%
, Ta: 0.01-1%, Zr: 0.005-0.2%
and the Ti equivalent shown below is (Ti+T
a+2Nb+4Zr)/(C+N): satisfies 0.3 to 10, the remainder consists of Fe and inevitable impurities, and Y_2O
An oxide dispersion strengthened high manganese austenitic steel with excellent strength and toughness made by dispersing _3 as particles with a particle size of 1 μm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17784186A JPS6335758A (en) | 1986-07-30 | 1986-07-30 | Oxide dispersion-strengthened-type high-manganese austenitic stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17784186A JPS6335758A (en) | 1986-07-30 | 1986-07-30 | Oxide dispersion-strengthened-type high-manganese austenitic stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6335758A true JPS6335758A (en) | 1988-02-16 |
Family
ID=16038052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17784186A Pending JPS6335758A (en) | 1986-07-30 | 1986-07-30 | Oxide dispersion-strengthened-type high-manganese austenitic stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6335758A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2639462A1 (en) * | 1988-11-19 | 1990-05-25 | Doryokuro Kakunenryo | DISPERSION REINFORCED FERRITIC STEEL SLEEVE TUBE |
| US5134039A (en) * | 1988-04-11 | 1992-07-28 | Leach & Garner Company | Metal articles having a plurality of ultrafine particles dispersed therein |
| US5431753A (en) * | 1991-12-30 | 1995-07-11 | Pohang Iron & Steel Co. Ltd. | Manufacturing process for austenitic high manganese steel having superior formability, strengths and weldability |
| EP0872568A1 (en) * | 1995-08-18 | 1998-10-21 | Xuesheng Zhao | AUSTENITIC ACID CORROSION-RESISTANT STAINLESS STEEL OF Al-Mn-Si-N SERIES |
| WO2011081393A3 (en) * | 2009-12-28 | 2011-11-10 | 주식회사 포스코 | Austenite steel material having superior ductility |
| CN102828097A (en) * | 2012-09-16 | 2012-12-19 | 北京科技大学 | Method for preparing nitrogen-contained ODS (oxide dispersion strengthened) nickel-free austenite alloy by mechanical alloying process |
| KR101322170B1 (en) * | 2009-12-28 | 2013-10-25 | 주식회사 포스코 | Steel with high ductility |
| EP2402472B2 (en) † | 2010-07-02 | 2017-11-15 | ThyssenKrupp Steel Europe AG | High-tensile, cold formable steel and flat steel product composed of such steel |
-
1986
- 1986-07-30 JP JP17784186A patent/JPS6335758A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134039A (en) * | 1988-04-11 | 1992-07-28 | Leach & Garner Company | Metal articles having a plurality of ultrafine particles dispersed therein |
| FR2639462A1 (en) * | 1988-11-19 | 1990-05-25 | Doryokuro Kakunenryo | DISPERSION REINFORCED FERRITIC STEEL SLEEVE TUBE |
| US5431753A (en) * | 1991-12-30 | 1995-07-11 | Pohang Iron & Steel Co. Ltd. | Manufacturing process for austenitic high manganese steel having superior formability, strengths and weldability |
| EP0872568A1 (en) * | 1995-08-18 | 1998-10-21 | Xuesheng Zhao | AUSTENITIC ACID CORROSION-RESISTANT STAINLESS STEEL OF Al-Mn-Si-N SERIES |
| EP0872568A4 (en) * | 1995-08-18 | 2000-01-05 | Xuesheng Zhao | AUSTENITIC ACID CORROSION-RESISTANT STAINLESS STEEL OF Al-Mn-Si-N SERIES |
| WO2011081393A3 (en) * | 2009-12-28 | 2011-11-10 | 주식회사 포스코 | Austenite steel material having superior ductility |
| CN102906294A (en) * | 2009-12-28 | 2013-01-30 | Posco公司 | Austenite steel material having superior ductility |
| KR101322170B1 (en) * | 2009-12-28 | 2013-10-25 | 주식회사 포스코 | Steel with high ductility |
| EP2402472B2 (en) † | 2010-07-02 | 2017-11-15 | ThyssenKrupp Steel Europe AG | High-tensile, cold formable steel and flat steel product composed of such steel |
| CN102828097A (en) * | 2012-09-16 | 2012-12-19 | 北京科技大学 | Method for preparing nitrogen-contained ODS (oxide dispersion strengthened) nickel-free austenite alloy by mechanical alloying process |
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