JPS61170554A - Member for highly corrosion resistant boiler - Google Patents
Member for highly corrosion resistant boilerInfo
- Publication number
- JPS61170554A JPS61170554A JP60011634A JP1163485A JPS61170554A JP S61170554 A JPS61170554 A JP S61170554A JP 60011634 A JP60011634 A JP 60011634A JP 1163485 A JP1163485 A JP 1163485A JP S61170554 A JPS61170554 A JP S61170554A
- Authority
- JP
- Japan
- Prior art keywords
- boiler
- corrosion
- erosion
- sprayed layer
- fluidized bed
- 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.)
- Pending
Links
- 230000007797 corrosion Effects 0.000 title claims abstract description 32
- 238000005260 corrosion Methods 0.000 title claims abstract description 32
- 239000000956 alloy Substances 0.000 claims abstract description 30
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 30
- 230000003628 erosive effect Effects 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 abstract description 5
- 239000011593 sulfur Substances 0.000 abstract description 5
- 238000007751 thermal spraying Methods 0.000 abstract description 5
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、Ｎｉ基合金溶射層を備えた高耐腐食性ボイラ
用部材、特に石炭焚ボイラのボイラ管に生ずる高温エロ
ージョンおよびコロ−ジョンを防止するのに通した材料
に関する。Detailed Description of the Invention (Industrial Field of Application) The present invention is a highly corrosion-resistant boiler member equipped with a Ni-based alloy sprayed layer, particularly for preventing high-temperature erosion and corrosion occurring in boiler tubes of coal-fired boilers. Concerning the material passed through to prevent.
（従来の技術）
最近に至り、燃料費を節約するとともにエネルギー効率
を高めるために、流動床ボイラが多く使用されるように
なった。この流動床ボイラとは、石灰石粒、珪砂粒など
の固体粒子を流動化させて形成した流動床の内部で燃焼
を行う形式のボイラであって、一種の石炭焚ボイラであ
る。流動床を利用することから熱伝達効率は極めて良好
であり、同時に石灰石等を用いて炉内脱硫が可能である
ため、使用可能燃料の幅が広く、雑燃料、低品位燃料も
燃焼できる等の利点があり急速に普及をはじめているも
のである。しかし材料面からは新たな固有の問題がみら
れるようになった。(Prior Art) Recently, fluidized bed boilers have come into widespread use in order to save fuel costs and increase energy efficiency. This fluidized bed boiler is a type of boiler in which combustion is performed inside a fluidized bed formed by fluidizing solid particles such as limestone grains and silica sand grains, and is a type of coal-fired boiler. Because it uses a fluidized bed, the heat transfer efficiency is extremely good, and at the same time, it is possible to desulfurize in the furnace using limestone, etc., so a wide range of usable fuels can be used, and miscellaneous fuels and low-grade fuels can also be combusted. It has advantages and is rapidly becoming popular. However, new problems have emerged from the materials perspective.
すなわち、流動床ボイラでは流動層内に挿入した層内管
、つまりボイラ管がこれまでのボイラでは遭遇しなかっ
た特殊な高温エロージョン、コロ−ジョン環境に置かれ
る。例えば、コロ−ジョン環境は低酸素分圧、高硫黄分
圧の雰囲気によるものであり、エロージョン環境はＣａ
Ｏ、石炭灰あるいは砂などの流動媒体によるものである
。That is, in a fluidized bed boiler, the inner bed tube inserted into the fluidized bed, that is, the boiler tube, is placed in a special high temperature erosion and corrosion environment that has not been encountered in conventional boilers. For example, the corrosion environment is caused by an atmosphere with low oxygen partial pressure and high sulfur partial pressure, and the erosion environment is caused by an atmosphere of low oxygen partial pressure and high sulfur partial pressure.
O, coal ash, or a fluid medium such as sand.
このような流動床ボイラにみられる環境下で、従来のボ
イラ管を使用した場合には、極めてしばしばエローシコ
ン、コロ−ジョンによる激しい損耗を受けることになる
ため、設計者はその対策に苦慮している現状である。例
えば、ボイラ管にプロテクタをかぶしたり、スタッドを
施したりといった管構造の面からの対策および空塔速度
を落したりといった操業上の対策などがとられている。When conventional boiler tubes are used in the environment found in fluidized bed boilers, they often suffer from severe wear and tear due to erosion and corrosion, so designers are struggling to find countermeasures. This is the current situation. For example, measures have been taken in terms of tube structure, such as covering boiler tubes with protectors or adding studs, and operational measures, such as reducing superficial tower speed.
しかしながら、プロテクタを使用すると熱効率の低下、
スタッドを設ける場合では高価な施工費を必要とし、ま
た、空塔速度低下では出力低下といった各問題をそれぞ
れ生じるため、そのような部材を何ら設けず構造的には
平滑管を使い、その材質を改善するという対策が強く望
まれている。However, using a protector reduces thermal efficiency,
When installing studs, expensive construction costs are required, and a reduction in superficial velocity causes problems such as a reduction in output. Measures to improve this situation are strongly desired.
この点は微粉炭焚ボイラのボイラ管でも全く同様である
。This point is exactly the same for boiler tubes of pulverized coal-fired boilers.
ところで、一方、材料の耐摩耗性向上に溶射を行うこと
も一般に良く知られており、そのための各種溶射合金も
公知であって、特に、Ｎｉ基溶射合金は既存の溶射合金
の主流であり、極めて多数ある。ことに自溶合金は古（
から良く知られている。By the way, on the other hand, it is generally well known that thermal spraying is used to improve the wear resistance of materials, and various thermal spray alloys for this purpose are also known, and in particular, Ni-based thermal spray alloys are the mainstream of existing thermal spray alloys. There are an extremely large number of them. In particular, self-fluxing alloys are old (
It is well known from
この中で硬度の高い、溶射合金も多く、単純な摩耗防止
の目的には使用できるものは多い。Among these, there are many thermal spray alloys with high hardness, and many of them can be used for simple purposes of preventing wear.
しかし、流動床ボイラ雰囲気では上述のごとく低酸素、
高硫黄分圧となり、Ｎｉ基合金は硫化腐食を生じしばし
ば大きな損傷を受けることが知られているため実際には
使用されなかった。また使用できないと考えられていた
。However, in the fluidized bed boiler atmosphere, as mentioned above, low oxygen
The sulfur partial pressure is high, and Ni-based alloys are known to suffer from sulfide corrosion and often suffer significant damage, so they have not been used in practice. It was also considered unusable.
（発明が解決しようとする問題点）
かくして、本発明の第１の目的とするところは、高温固
体粒子によるエロージョン、コロ−ジョンに耐えるボイ
ラ部材を提供することである。(Problems to be Solved by the Invention) Thus, a first object of the present invention is to provide a boiler member that can withstand erosion and corrosion caused by high-temperature solid particles.
本発明の第２の目的とするところは、流動床ボイラにみ
られる低酸素、高硫黄雰囲気下ですくれた耐硫化腐食性
を示すボイラ部材を提供することである。A second object of the present invention is to provide a boiler member that exhibits poor sulfidation corrosion resistance in the low oxygen, high sulfur atmosphere found in fluidized bed boilers.
本発明の第３の目的とするところは、流動床ボイラおよ
び石炭焚ボイラに通したボイラ部材を提供することであ
る。A third object of the present invention is to provide a boiler member for use in fluidized bed boilers and coal-fired boilers.
（問題点を解決するための手段）
本発明者らは、かかる目的を達成すべ（、Ｎｉ基合金に
よる自溶合金溶射の経済的利点に着目して鋭意研究、検
討を重ねた結果、次の如き知見を得た。(Means for Solving the Problems) The present inventors have conducted intensive research and studies focusing on the economic advantages of self-fluxing alloy thermal spraying using Ni-based alloys, and have found the following. I gained such knowledge.
各種石炭ボイラ殊に流動床ボイラにおいて使用するに適
した材料であるためには、まずＮｉ基合金であっても流
動床ボイラでの耐食性を維持できる組成を有するもので
なければならないが、Ｎｉ基合金のなかでも、予期され
なかったように、Ｃｒ（％）＋４５ｉ（％）≧３２なる
条件を満たすＣｒおよびＳｉを含有する場合にはしばし
ばＮｉ基合金で問題となる硫化腐食は実質上生ぜず耐食
性が著しく向上することが明らかとなった。In order for the material to be suitable for use in various coal boilers, especially fluidized bed boilers, it must have a composition that can maintain corrosion resistance in fluidized bed boilers even if it is a Ni-based alloy. Among alloys, it was unexpectedly found that sulfide corrosion, which is often a problem with Ni-based alloys, does not substantially occur when it contains Cr and Si that satisfy the condition Cr (%) + 45i (%) ≧ 32. It became clear that corrosion resistance was significantly improved.
また、エロージョン抵抗性についても検討の結果、常温
でのビッカース硬さが７５０ ｋｇｆ／ｍ！以上の場
合に抵抗性が向上することが判明した。より具体的には
、上述のＮｉ基合金の場合、Ｓｉｓ Ｃｒｓ Ｂの炭化
物がその硬度を左右するものであり、これらの合金成分
の含有量を調整することにより上述の如き硬度を実現で
きる。より好ましくは、Ｃ：０．３５％以上、Ｓｉ ：
２．０〜５．０％、Ｃｒ：１２〜３０％、Ｂ：１〜５
％の範囲の組成である。Also, as a result of examining erosion resistance, the Vickers hardness at room temperature is 750 kgf/m! It has been found that resistance is improved in the above cases. More specifically, in the case of the above-mentioned Ni-based alloy, the carbide of Sis Crs B influences its hardness, and the above-mentioned hardness can be achieved by adjusting the content of these alloy components. More preferably, C: 0.35% or more, Si:
2.0-5.0%, Cr: 12-30%, B: 1-5
The composition is in the range of %.
ここに、本発明の要旨とするところは、ＣｒおよびＳｉ
を式＝Ｃｒ■ｌ＋４ｓｉ（％）≧３２を満足する量だけ
含有し、かつビッカース硬さを７５０ ｋｇｆ ／
ｍＡ以上であるＮｉ基合金溶射層を備えたことを特徴と
する、高温固体粒子によるエロージョンおよびコロ−ジ
ョンに対する抵抗性にすぐれた高耐腐食性ボイラ用部材
である。Here, the gist of the present invention is that Cr and Si
Contains an amount that satisfies the formula = Cr l + 4si (%) ≧ 32, and has a Vickers hardness of 750 kgf /
This is a highly corrosion-resistant boiler member that has excellent resistance to erosion and corrosion caused by high-temperature solid particles, and is characterized by having a Ni-base alloy thermal sprayed layer having a resistance of mA or more.
より好ましくは、本発明は、ＣｒおよびＳｔを式：Ｃｒ
（Ｘ） ＋ ４５ｉ（Ｘ）≧３２を満足する量だけ含有
し、Ｃ：０．３５％以上、Ｓｔ ： ２．０〜５．０％
、Ｃｒ：１２〜３０％、Ｂ：１〜５％の範囲の組成を有
し、かつビッカース硬さを７５０ ｋｇｆ／ｍＡ以上
であるＮｉ基合金溶射層を備え、流動床ボイラおよび石
炭焚ボイラにおける高温固体粒子によるエロージョンお
よびコロ−ジョンに対する抵抗性にすぐれた高耐硫化腐
食性ボイラ用部材にある。More preferably, the present invention provides Cr and St with the formula: Cr
Contains only an amount that satisfies (X) + 45i (X)≧32, C: 0.35% or more, St: 2.0 to 5.0%
, Cr: 12-30%, B: 1-5%, and has a Vickers hardness of 750 kgf/mA or more. A boiler member with high sulfide corrosion resistance and excellent resistance to erosion and corrosion caused by high-temperature solid particles.
ここに、上記Ｎｉ基合金溶射層を設ける母材としては、
ボイラ管外表面、プロテクタ材あるいはスタンド材等が
挙げられるが、材質的には、例えば、従来よりボイラ部
材として使用されていたものであれば、特に制■される
ものではない。Here, the base material on which the Ni-based alloy sprayed layer is provided is as follows:
Examples include the outer surface of the boiler tube, a protector material, a stand material, etc., but the material is not particularly limited as long as it is conventionally used as a boiler member.
上記Ｎｉ基合金溶射層と母材との間にはたとえば、Ｎｉ
基のより軟質合金の溶射層を介在させてもよい。For example, between the Ni-based alloy sprayed layer and the base material, there is
A sprayed layer of a softer base alloy may be interposed.
高温使用時における母材と溶射層との熱膨張差により溶
射層の割れを防止するとともに、最終的に得られるボイ
ラ部材としての加工性を改善するためである。This is to prevent cracking of the sprayed layer due to the difference in thermal expansion between the base material and the sprayed layer during high-temperature use, and to improve the workability of the ultimately obtained boiler member.
本発明において利用する溶射合金は耐高温粒子エロージ
ヨン性を改善するために特に硬さを高めているので、反
面延性に欠ける。母材合金との熱歪が大きい場合にはク
ランクを生じやすい。したがって、上述のように、やわ
らかい延性に冨んだ同系統の金属を溶射し、その上に本
発明による溶射を施すと、より健全な溶射被膜となる。The thermal spray alloy used in the present invention has particularly increased hardness to improve high-temperature particle erosion resistance, but on the other hand, it lacks ductility. If the thermal strain with the base alloy is large, cranking is likely to occur. Therefore, as described above, if a soft, ductile metal of the same type is thermally sprayed and the thermal spraying of the present invention is applied thereon, a healthier thermally sprayed coating will be obtained.
また溶耐層厚さは最大０．５ｍｍが適切であって、これ
より厚すぎると割れやすくなる。Further, the maximum thickness of the melt-resistant layer is preferably 0.5 mm, and if it is thicker than this, it becomes easy to break.
次に、本発明を実施例によってさらに詳述する。Next, the present invention will be explained in further detail by way of examples.
爽癒乳上
第１表に示す各種合金組成を熔解し粉末とした後、ガス
溶射法により、ステンレス鋼（ＳＵＳ ３０４、）板の
表面に吹き付け、約０．３酊厚の溶射層を形成せしめた
。After melting the various alloy compositions shown in Table 1 above into powder, they were sprayed onto the surface of a stainless steel (SUS 304) plate using a gas spraying method to form a sprayed layer with a thickness of about 0.3mm. Ta.
このようにして得た板から試験片を切出して、それらを
次のガス組成の雰囲気下に７５０〜５００ｈｒさらして
、ボイラ雰囲気下での高温ガス腐食に対する各溶射層の
抵抗性を評価した。Test pieces were cut from the plates thus obtained and exposed to an atmosphere having the following gas composition for 750 to 500 hours to evaluate the resistance of each sprayed layer to high temperature gas corrosion in a boiler atmosphere.
ガス雰囲気＝（Ａ） ：Ｎ２Ｂａ１． ｔｓ％Ｃ０
２−２％０２−０．３％５０２
（Ｂ）：Ｎ２Ｂａ１． １％Ｈ２−
６％Ｈ２Ｏ−３％ＣＯ−
１５％ｃｏ２−０．３％Ｈ２Ｓ
なお、ガス雰囲気−（Ａ）は通常のボイラ燃焼雰囲気に
近似したガス組成であり、一方、ガス雰囲気−（Ｂ）は
、流動床ボイラで想定される低空気比燃焼（９０％理論
空気）部での近似ガス組成である。Gas atmosphere = (A): N2Ba1. ts%C0
2-2%02-0.3%502 (B): N2Ba1. 1%H2- 6%H2O-3%CO- 15%co2-0.3%H2S Note that the gas atmosphere (A) has a gas composition similar to a normal boiler combustion atmosphere, while the gas atmosphere (B) ) is the approximate gas composition in the low air ratio combustion (90% theoretical air) section assumed in a fluidized bed boiler.
試験材の化学組成および腐食侵食量（μｍ）を第１表に
まとめて示す。The chemical composition and amount of corrosion (μm) of the test materials are summarized in Table 1.
ここで同表中、腐食侵食量は、試験後断面にて判断した
侵食量である。第１表より明らかなように、ガス雰囲気
−（Ａ）ではいずれの合金も良好な耐食性を示すが、ガ
ス雰囲気−（Ｂ）ではＣｒ（％）＋４５ｉ（％）≦３１
．１の合金隘４．５．６の試験では異常に大きな腐食量
を示している。これは硫化ニッケルが生じ異常腐食を生
じたものであるが、しかし、Ｆｅ基のＳＯ３３０４Ｈ（
参考例）およびＮｉ基でも本発明の範囲内の合金隘１〜
３は良好な耐食性を示している。Here, in the same table, the amount of corrosion is the amount of corrosion determined from the cross section after the test. As is clear from Table 1, all alloys show good corrosion resistance in gas atmosphere - (A), but in gas atmosphere - (B) Cr (%) + 45i (%) ≦ 31
．． Tests for alloy No. 1 4.5.6 showed an abnormally large amount of corrosion. This is due to abnormal corrosion caused by nickel sulfide, however, Fe-based SO3304H (
Reference Example) and Ni-based alloys within the scope of the present invention
3 indicates good corrosion resistance.
添付図面のグラフはガス雰囲気−（Ｂ）の下での腐食侵
食量を式： Ｃｒ（％）＋４５ｉ（％）の値に対してプ
ロットして得たものであって、温式の値＝３２に耐硫化
腐食性に関し、顕著な臨界性があるのが分かる。The graph in the attached drawing was obtained by plotting the amount of corrosion under a gas atmosphere - (B) against the value of the formula: Cr (%) + 45i (%), where the value of the temperature formula = 32 It can be seen that there is a remarkable criticality in terms of sulfide corrosion resistance.
第１表
裏と
本例にあっては供試材としては実施例１と同様にして用
意した板で、試験片は幅２０ （ｍ＋ａ） ｘ長さ３０
（ｎ）に切り出したものを用いて高温固体粒子エロージ
ョンに対する抵抗性を評価した。装置としては高温ブラ
スト式エロージョン試験装置を用いた。このとき次の２
つの条件で評価を行った。In the case of the first front and back and this example, the test material was a plate prepared in the same manner as in Example 1, and the test piece was 20 (m+a) wide x 30 long
Resistance to high-temperature solid particle erosion was evaluated using the material cut out in (n). A high temperature blast type erosion testing device was used as the device. At this time, the following two
Evaluation was conducted under two conditions.
第２表
ここで、衝突角として６０°を選んだのは、短時間で１
ｈ突角を変化させて試験した結果今回検討の自溶合金溶
射では６０°の衝突角のとき最大肉厚減少が得られるこ
とが明らかとなったからである。Table 2Here, the reason why we chose 60° as the collision angle is that 1
This is because, as a result of testing with varying h protrusion angles, it became clear that the self-fluxing alloy thermal spraying studied this time could achieve the maximum wall thickness reduction at an impact angle of 60°.
供試材の化学成分およびエロージョン試験結果を第３表
にまとめて示す。ビッカース硬さが７５０ｋｇｆ／＋＋
！を境に硬度の高い材料では耐エロージヨン性が格段と
向上することが分かる。The chemical components of the sample materials and the erosion test results are summarized in Table 3. Vickers hardness is 750kgf/++
! It can be seen that erosion resistance is significantly improved for materials with high hardness.
合金患６はビッカース硬さが７８０ ｋｇｆ／ｍ！ｉｌ
であるが、Ｃｒ（′ｙｏｌ＋４Ｓｉ （％）−３１，１
と本発明の範囲外にあるため、本発明の場合と比較して
実施例１に示したように耐コロージヨン性が著しく劣っ
ている。Alloy 6 has a Vickers hardness of 780 kgf/m! il
However, Cr('yol+4Si (%)-31,1
Since this is outside the scope of the present invention, the corrosion resistance is significantly inferior as shown in Example 1 compared to the case of the present invention.
添付図面は、式：Ｃｒ（％）＋４５ｉ（％）に対してガ
ス雰囲気−（Ｂ）の下での腐食侵食量をプロットして得
たグラフである。
出願人 住友金属工業株式会社
代理人 弁理士 広 瀬 童 −（他１名）η゛スキ
田気Ｂ）
（、ｒ（’Ａ）＋ヰＳｉ（％）The attached drawing is a graph obtained by plotting the amount of corrosion under the gas atmosphere - (B) against the formula: Cr (%) + 45i (%). Applicant Sumitomo Metal Industries Co., Ltd. Agent Patent Attorney Hirose Do - (1 other person)
Claims (1)
を満足する量だけ含有し、かつビッカース硬さが７５０
ｋｇｆ／ｍｍ＾２以上であるＮｉ基合金溶射層を備えた
ことを特徴とする、高温固体粒子によるエロージョンお
よびコロージョンに対する抵抗性にすぐれた高耐腐食性
ボイラ用部材。Formula for Cr and Si: Cr(%)+4Si(%)≧32
Contains a sufficient amount of and has a Vickers hardness of 750.
A highly corrosion-resistant boiler member having excellent resistance to erosion and corrosion caused by high-temperature solid particles, characterized by comprising a Ni-base alloy thermal sprayed layer having a coating thickness of kgf/mm^2 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60011634A JPS61170554A (en) | 1985-01-24 | 1985-01-24 | Member for highly corrosion resistant boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60011634A JPS61170554A (en) | 1985-01-24 | 1985-01-24 | Member for highly corrosion resistant boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61170554A true JPS61170554A (en) | 1986-08-01 |
Family
ID=11783375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60011634A Pending JPS61170554A (en) | 1985-01-24 | 1985-01-24 | Member for highly corrosion resistant boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61170554A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5910290A (en) * | 1994-10-03 | 1999-06-08 | Foster Wheeler Energia Oy | Arrangement in a wall and a method of coating a wall |
| JP2005248321A (en) * | 2004-02-02 | 2005-09-15 | Dai Ichi High Frequency Co Ltd | Clad pipe |
| JP2011039011A (en) * | 2009-08-18 | 2011-02-24 | Central Res Inst Of Electric Power Ind | Sulfidation corrosion evaluation method |
| WO2011034100A1 (en) | 2009-09-18 | 2011-03-24 | 住友金属工業株式会社 | Ni-BASED ALLOY MATERIAL |
-
1985
- 1985-01-24 JP JP60011634A patent/JPS61170554A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5910290A (en) * | 1994-10-03 | 1999-06-08 | Foster Wheeler Energia Oy | Arrangement in a wall and a method of coating a wall |
| JP2005248321A (en) * | 2004-02-02 | 2005-09-15 | Dai Ichi High Frequency Co Ltd | Clad pipe |
| JP2011039011A (en) * | 2009-08-18 | 2011-02-24 | Central Res Inst Of Electric Power Ind | Sulfidation corrosion evaluation method |
| WO2011034100A1 (en) | 2009-09-18 | 2011-03-24 | 住友金属工業株式会社 | Ni-BASED ALLOY MATERIAL |
| US8858875B2 (en) | 2009-09-18 | 2014-10-14 | Nippon Steel & Sumitomo Metal Corporation | Nickel based alloy material |
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