JPS6330379B2 - - Google Patents
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- Publication number
- JPS6330379B2 JPS6330379B2 JP59124737A JP12473784A JPS6330379B2 JP S6330379 B2 JPS6330379 B2 JP S6330379B2 JP 59124737 A JP59124737 A JP 59124737A JP 12473784 A JP12473784 A JP 12473784A JP S6330379 B2 JPS6330379 B2 JP S6330379B2
- Authority
- JP
- Japan
- Prior art keywords
- content
- effect
- dental
- alloy
- improving
- 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.)
- Expired
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- 229910045601 alloy Inorganic materials 0.000 claims description 28
- 239000000956 alloy Substances 0.000 claims description 28
- 238000005266 casting Methods 0.000 claims description 24
- 229910052804 chromium Inorganic materials 0.000 claims description 12
- 229910052750 molybdenum Inorganic materials 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 10
- 229910052735 hafnium Inorganic materials 0.000 claims description 9
- 229910052748 manganese Inorganic materials 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910052715 tantalum Inorganic materials 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 25
- 239000000463 material Substances 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 239000006104 solid solution Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 150000001247 metal acetylides Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000007542 hardness measurement Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Landscapes
- Dental Preparations (AREA)
Description
〔産業上の利用分野〕
この発明は、歯科床や歯冠などの歯科用部材に
要求される特性を具備し、かつ鋳造性の著しくす
ぐれた歯科用Co基鋳造合金に関するものである。
〔従来の技術〕
一般に、上記の歯科用部材には、実際に口腔内
に装着した時に、咬合の際の圧力で変形しない強
度、口腔内の分泌液などで腐食しない耐食性、さ
らに鋳造後、研削加工されるので、ある程度の硬
さを保持した上での靭性などの特性が要求される
ことから、これらの部材の製造には、各種ある材
料のうち、特にこれらの特性を具備したCo−Cr
基鋳造合金が広く用いられている。
〔発明が解決しようとする問題点〕
しかし、この従来歯科用Co−Cr基鋳造合金は、
融点が著しく高く、かつ湯流れ性の悪いものであ
るために、鋳造に際しては、鋳物形状が複雑であ
ることと相まつて、どうしても溶湯温度を高くし
て鋳込まなければならず、この結果鋳型との間に
焼付きが生じ易く、鋳肌のきれいな鋳物を製造す
ることが困難であり、その仕上研削にはかなりの
手間と時間を要するものであつた。
〔問題点を解決するための手段〕
そこで、本発明者等は、上述のような観点か
ら、歯科用部材に要求される特性を具備した上記
のCo−Cr基鋳造合金に着目し、これにすぐれた
鋳造性、すなわち比較的低い溶湯温度での鋳造に
よつてもすぐれた湯流れ性を示し、複雑な形状の
鋳物をきれいな鋳肌で、かつ健全に製造すること
のできる合金を開発すべく研究を行なつた結果、
重量％で（以下％は重量％を示す）、
Ｃ：0.01〜0.65％、
Si：0.1〜５％、
Mn：0.1〜３％、
Cr：12〜35％、
Mo：１〜20％、
Hf：0.01〜５％、
を含有し、さらに必要に応じて、
(A) Ｗ：0.1〜10％、
(B) Ti、Nb、およびTaのうちの１種または２種
以上：0.1〜12％、
(C) FeおよびNiのうちの１種または２種：１〜
10％、
以上(A)〜(C)のうちの１種または２種以上を含有
し、残りがCoと不可避不純物からなる組成を有
するCo基鋳造合金は、歯科用部材に要求される
強度、耐食性、靭性、および硬さを有し、かつ湯
流れ性がよく、鋳造性にすぐれているので、複雑
な形状の歯科用部材をきれいな鋳肌で製造するこ
とができるという知見を得たのである。
この発明は、上記知見に基づいてなされたもの
であつて、以下に成分組成を上記の通りに限定し
た理由を説明する。
(a) Ｃ
Ｃ成分には、素地に固溶して、これを強化す
ると共に、Cr、Mo、さらにＷ、Ti、Nb、お
よびTaなどと結合してM7C3、MC、および
M23C6型などの炭化物を形成して、合金の硬さ
を向上させるばかりでなく、鋳造性も向上させ
る作用があるが、その含有量が0.01％未満では
前記作用に所望の効果が得られず、一方0.65％
を越えて含有させると炭化物の形成が多くなる
ばかりでなく、その粒径も粗大化して靭性が低
下し、実質的に繊維にして複雑な形状の部材の
製造が困難になることから、その含有量を0.01
〜0.65％と定めた。
(b) Si
Si成分には、脱酸作用があるほか、合金の融
点を下げて湯流れ性を良くし、もつて鋳造性を
向上させる作用があるが、その含有量が0.1％
未満では前記作用に所望の効果が得られず、一
方５％を越えて含有させると、Cr含有量と関
係して合金の靭性が低下するようになることか
ら、その含有量を0.1〜５％と定めた。
(c) Mn
Mn成分には、Si成分と同様に脱酸作用があ
るほか、素地に固溶して、素地のオーステナイ
トを安定化する作用があるが、その含有量が
0.1％未満では前記作用に所望の効果が得られ
ず、一方３％を越えて含有させても前記作用に
より一層の向上効果が得られないばかりでな
く、むしろ耐食性に劣化傾向が現われるように
なることから、その含有量を0.1〜３％と定め
た。
(d) Cr
Cr成分には、その一部が素地に固溶して、
これを強化し、かつ耐食性を著しく向上させる
ほか、残りの部分が炭化物を形成して硬さを向
上させる作用があるが、その含有量が12％未満
では前記作用に所望の効果が得られず、一方35
％を越えて含有させると、靭性に低下傾向が現
われるようになることから、その含有量を12〜
35％と定めた。
(e) Mo
Mo成分にも、Cr成分と同様に素地に固溶し
て、これを強化し、かつ炭化物を形成して硬さ
を向上させる作用があるが、その含有量が１％
未満では所望の強度および硬さを確保すること
ができず、一方20％を越えて含有させると合金
の靭性が低下するようになることから、その含
有量を１〜20％と定めた。
(f) Hf
Hf成分には、主としてCoおよびCr成分によ
つて形成されたオーステナイト素地に固溶し
て、靭性と強度を向上させると共に、合金の融
点を下げて湯流れ性を改善し、もつて鋳造性を
向上させる作用があるほか、Ｃ成分と結合して
MC型炭化物を形成し、もつて硬さを向上させ
る作用があるが、その含有量が0.01％未満では
前記作用に所望の効果が得られず、一方５％を
越えて含有させてもより一層の向上効果が現わ
れないことから、経済性を考慮して、その含有
量を0.01〜５％と定めた。
(g) Ｗ
Ｗ成分には、CrおよびMo成分と同様に、素
地に固溶して、これを強化し、かつ炭化物を形
成して硬さを向上させる作用があるので、特に
これらの特性が要求される場合に必要に応じて
含有されるが、その含有量が0.1％未満では前
記作用に所望の向上効果が得られず、一方10％
を越えて含有させると靭性が低下するようにな
ることから、その含有量を0.1〜10％と定めた。
(h) Ti、Nb、およびTa
これらの成分には、素地の結晶粒の成長を著
しく抑制し、むしろ結晶粒を微細化し、かつ
MC型炭化物を形成して硬さを向上させる作用
があるので、これらの特性が要求される場合に
必要に応じて含有されるが、その含有量が0.1
％未満では前記作用に所望の向上効果が得られ
ず、一方12％を越えて含有させると合金の靭性
が低下するようになることから、その含有量を
0.1〜12％と定めた。
(i) FeおよびNi
これらの成分には、Coと同等の作用効果が
あるので、コスト低減をはかる目的で、高価な
Co成分の一部を代替することができるが、そ
の含有量が１％未満では経済的効果が低く、一
方10％を越えて含有させるとCoによつてもた
らされるすぐれた耐食性および靭性が低下する
ようになることから、その含有量を１〜10％と
定めた。
なお、不可避不純物としてZr成分を含有す
る場合があるが、その含有量が0.3％を越える
と、靭性および鋳造性に悪影響を及ぼすように
なるので、Zrの含有量が0.3％を越えるように
してはならない。
〔実施例〕
つぎに、この発明のCo基鋳造合金を実施例に
より具体的に説明する。
通常の高周波溶解炉を用い、大気中で、それぞ
れ第１表に示される成分組成をもつた本発明Co
基鋳造合金１〜43および従来Co基鋳造合金の溶
湯を調製し、ついで砂型に鋳造して、硬さ測定用
試験片、引張強さ測定用試験片、および湯流れ測
定用素材をそれぞれ製造した。
[Industrial Application Field] The present invention relates to a dental Co-based casting alloy that has properties required for dental components such as dental beds and dental crowns and has excellent castability. [Prior Art] In general, the above-mentioned dental components have strength that does not deform due to pressure during occlusion when actually installed in the oral cavity, corrosion resistance that does not corrode due to secretions in the oral cavity, etc., and also requires grinding after casting. Because these parts are processed, they require properties such as toughness while maintaining a certain degree of hardness. Among the various materials available, Co-Cr, which has these properties, is used to manufacture these parts.
Base casting alloys are widely used. [Problems to be solved by the invention] However, this conventional dental Co-Cr based casting alloy has
Due to its extremely high melting point and poor flowability, the molten metal must be heated to a high temperature during casting due to the complex shape of the casting. It is difficult to produce a casting with a clean surface because seizure is likely to occur during the grinding process, and finishing grinding requires considerable effort and time. [Means for Solving the Problems] Therefore, from the above-mentioned viewpoint, the present inventors focused on the above-mentioned Co-Cr-based cast alloy that has the characteristics required for dental components, and developed the above-mentioned Co-Cr-based cast alloy. In order to develop an alloy that exhibits excellent castability, that is, excellent flowability even when cast at a relatively low molten metal temperature, and that allows castings of complex shapes to be produced with clean casting surfaces and in a sound manner. As a result of research,
In weight% (hereinafter % indicates weight%), C: 0.01 to 0.65%, Si: 0.1 to 5%, Mn: 0.1 to 3%, Cr: 12 to 35%, Mo: 1 to 20%, Hf: (A) W: 0.1-10%, (B) One or more of Ti, Nb, and Ta: 0.1-12%, ( C) One or two of Fe and Ni: 1-
A Co-based casting alloy containing one or more of the above (A) to (C) at 10%, with the remainder consisting of Co and unavoidable impurities, has the strength required for dental components. They discovered that it has corrosion resistance, toughness, and hardness, as well as good flowability and excellent castability, making it possible to manufacture dental parts with complex shapes and a clean casting surface. . This invention was made based on the above knowledge, and the reason why the component composition was limited as described above will be explained below. (a) C The C component contains M 7 C 3 , MC, and M 7 C 3 , which are dissolved in solid solution in the base material to strengthen it, and combined with Cr, Mo, and further W, Ti, Nb, and Ta.
Forming carbides such as M 23 C 6 type has the effect of improving not only the hardness of the alloy but also the castability, but if the content is less than 0.01%, the desired effect will not be achieved. 0.65%
If it is contained in excess of amount 0.01
It was set at ~0.65%. (b) Si In addition to having a deoxidizing effect, the Si component also has the effect of lowering the melting point of the alloy, improving flowability, and improving castability, but its content is 0.1%.
If the content is less than 5%, the desired effect cannot be obtained, while if the content exceeds 5%, the toughness of the alloy will decrease in relation to the Cr content. It was determined that (c) Mn The Mn component has a deoxidizing effect similar to the Si component, and also has the effect of stabilizing the austenite in the substrate by solid solution in the substrate, but its content is
If it is less than 0.1%, the desired effect cannot be obtained in the above action, while if it is contained in more than 3%, not only the effect of further improving the action cannot be obtained, but also a tendency for corrosion resistance to deteriorate appears. Therefore, its content was set at 0.1 to 3%. (d) Cr A part of the Cr component is dissolved in the base material,
In addition to strengthening this and significantly improving corrosion resistance, the remaining part forms carbide and has the effect of improving hardness, but if the content is less than 12%, the desired effect cannot be obtained. , while 35
If the content exceeds 12%, the toughness tends to decrease.
It was set at 35%. (e) Mo Mo component, like the Cr component, has the effect of forming a solid solution in the base material, strengthening it, and forming carbides to improve hardness, but its content is 1%.
If the content is less than 20%, the desired strength and hardness cannot be secured, whereas if the content exceeds 20%, the toughness of the alloy will decrease. Therefore, the content was set at 1 to 20%. (f) Hf The Hf component is a solid solution in the austenite matrix formed mainly by Co and Cr components, improving toughness and strength, lowering the melting point of the alloy and improving flowability. In addition to having the effect of improving castability, it also combines with the C component.
Forms MC-type carbide, which has the effect of improving hardness, but if the content is less than 0.01%, the desired effect cannot be obtained, while if it is contained in excess of 5%, the effect is even worse. Since no improvement effect was observed, the content was determined to be 0.01 to 5% in consideration of economic efficiency. (g) Like the Cr and Mo components, the W component has the effect of forming a solid solution in the base material, strengthening it, and forming carbides to improve hardness, so these properties are particularly important. It is included as needed when required, but if the content is less than 0.1%, the desired effect of improving the above action cannot be obtained;
Since toughness decreases when the content exceeds 0.1% to 10%. (h) Ti, Nb, and Ta These components significantly inhibit the growth of crystal grains in the base material, rather they make the crystal grains finer and
Since it has the effect of forming MC type carbides and improving hardness, it is included as necessary when these characteristics are required, but if the content is 0.1
If the content is less than 12%, the desired effect of improving the above action cannot be obtained, while if the content exceeds 12%, the toughness of the alloy will decrease.
It was set at 0.1-12%. (i) Fe and Ni These components have the same effects as Co, so in order to reduce costs, expensive
Although it can partially replace the Co component, if the content is less than 1%, the economic effect will be low, while if the content exceeds 10%, the excellent corrosion resistance and toughness provided by Co will decrease. Therefore, the content was set at 1 to 10%. Note that Zr may be contained as an unavoidable impurity, but if its content exceeds 0.3%, it will have a negative effect on toughness and castability, so make sure that the Zr content exceeds 0.3%. Must not be. [Example] Next, the Co-based casting alloy of the present invention will be specifically explained with reference to Examples. Using an ordinary high-frequency melting furnace, in the atmosphere, the present invention
Molten metals of base casting alloys 1 to 43 and conventional Co base casting alloys were prepared, and then cast into sand molds to produce test pieces for hardness measurement, tensile strength measurement test pieces, and materials for melt flow measurement, respectively. .
【表】【table】
【表】【table】
【表】【table】
第２表に示される結果から、本発明Co基鋳造
合金１〜43は、いずれも従来Co基鋳造合金と同
等、あるいはこれ以上の高硬度、高強度、および
高靭性を有し、かつ前記従来Co基鋳造合金に比
して一段とすぐれた鋳造性をもつことが明らかで
ある。
このように、この発明のCo基鋳造合金は、歯
科用部材に要求される、すぐれた耐摩耗性、耐食
性、および靭性を具備するほか、その製造に際し
て不可欠の一段とすぐれた鋳造性を有するのであ
る。
From the results shown in Table 2, Co-based casting alloys 1 to 43 of the present invention all have high hardness, high strength, and high toughness that are equivalent to or higher than the conventional Co-based casting alloys, and It is clear that this alloy has much better castability than Co-based casting alloys. As described above, the Co-based casting alloy of the present invention not only has the excellent wear resistance, corrosion resistance, and toughness required for dental parts, but also has even better castability, which is essential for the production thereof. .
Claims (1)
成（以上重量％）を有することを特徴とする歯科
用Co基鋳造合金。 ２ Ｃ：0.01〜0.65％、 Si：0.1〜５％、 Mn：0.1〜３％、 Cr：12〜35％、 Mo：１〜20％、 Hf：0.01〜５％、 を含有し、さらに、 Ｗ：0.1〜10％、 を含有し、残りがCoと不可避不純物からなる組
成（以上重量％）を有することを特徴とする歯科
用Co基鋳造合金。 ３ Ｃ：0.01〜0.65％、 Si：0.1〜５％、 Mn：0.1〜３％、 Cr：12〜35％、 Mo：１〜20％、 Hf：0.01〜５％、 を含有し、さらに、 Ti、Nb、およびTaのうちの１種または２種以
上：0.1〜12％、 を含有し、残りがCoと不可避不純物からなる組
成（以上重量％）を有することを特徴とする歯科
用Co基鋳造合金。 ４ Ｃ：0.01〜0.65％、 Si：0.1〜５％、 Mn：0.1〜３％、 Cr：12〜35％、 Mo：１〜20％、 Hf：0.01〜５％、 を含有し、さらに、 FeおよびNiのうちの１種または２種：１〜10％、 を含有し、残りがCoと不可避不純物からなる組
成（以上重量％）を有することを特徴とする歯科
用Co基鋳造合金。 ５ Ｃ：0.01〜0.65％、 Si：0.1〜５％、 Mn：0.1〜３％、 Cr：12〜35％、 Mo：１〜20％、 Hf：0.01〜５％、 を含有し、さらに、 Ｗ：0.1〜10％と、 Ti、Nb、およびTaのうちの１種または２種以
上：0.1〜12％、 を含有し、残りがCoと不可避不純物からなる組
成（以上重量％）を有することを特徴とする歯科
用Co基鋳造合金。 ６ Ｃ：0.01〜0.65％、 Si：0.1〜５％、 Mn：0.1〜３％、 Cr：12〜35％、 Mo：１〜20％、 Hf：0.01〜５％、 を含有し、さらに、 Ｗ：0.1〜10％と、 FeおよびNiのうちの１種または２種：１〜10％、 を含有し、残りがCoと不可避不純物からなる組
成（以上重量％）を有することを特徴とする歯科
用Co基鋳造合金。 ７ Ｃ：0.01〜0.65％、 Si：0.1〜５％、 Mn：0.1〜３％、 Cr：12〜35％、 Mo：１〜20％、 Hf：0.01〜５％、 を含有し、さらに、 Ti、Nb、およびTaのうちの１種または２種以
上：0.1〜12％と、 FeおよびNiのうちの１種または２種：１〜10％、 を含有し、残りがCoと不可避不純物からなる組
成（以上重量％）を有することを特徴とする歯科
用Co基鋳造合金。 ８ Ｃ：0.01〜0.65％、 Si：0.1〜５％、 Mn：0.1〜３％、 Cr：12〜35％、 Mo：１〜20％、 Hf：0.01〜５％、 を含有し、さらに、 Ｗ：0.1〜10％と、 Ti、Nb、およびTaのうちの１種または２種以
上：0.1〜12％と、 FeおよびNiのうちの１種または２種：１〜10％、 を含有し、残りがCoと不可避不純物からなる組
成（以上重量％）を有することを特徴とする歯科
用Co基鋳造合金。[Claims] 1 C: 0.01 to 0.65%, Si: 0.1 to 5%, Mn: 0.1 to 3%, Cr: 12 to 35%, Mo: 1 to 20%, Hf: 0.01 to 5%, A dental Co-based casting alloy characterized by having a composition (by weight %) with the remainder consisting of Co and unavoidable impurities. 2 Contains C: 0.01 to 0.65%, Si: 0.1 to 5%, Mn: 0.1 to 3%, Cr: 12 to 35%, Mo: 1 to 20%, Hf: 0.01 to 5%, and further contains W. A dental Co-based casting alloy characterized by having a composition (by weight %) of: 0.1 to 10%, with the remainder consisting of Co and unavoidable impurities. 3 Contains C: 0.01-0.65%, Si: 0.1-5%, Mn: 0.1-3%, Cr: 12-35%, Mo: 1-20%, Hf: 0.01-5%, and further contains Ti , Nb, and Ta: 0.1 to 12%, and the remainder is Co and unavoidable impurities (weight %). alloy. 4 Contains C: 0.01 to 0.65%, Si: 0.1 to 5%, Mn: 0.1 to 3%, Cr: 12 to 35%, Mo: 1 to 20%, Hf: 0.01 to 5%, and further contains Fe. 1 to 10% of one or two of Ni and Ni, and the remainder being Co and unavoidable impurities (weight %). 5 Contains C: 0.01 to 0.65%, Si: 0.1 to 5%, Mn: 0.1 to 3%, Cr: 12 to 35%, Mo: 1 to 20%, Hf: 0.01 to 5%, and further contains W : 0.1 to 10%, one or more of Ti, Nb, and Ta: 0.1 to 12%, and the remainder is Co and unavoidable impurities (weight %). Characteristic dental Co-based casting alloy. 6 Contains C: 0.01 to 0.65%, Si: 0.1 to 5%, Mn: 0.1 to 3%, Cr: 12 to 35%, Mo: 1 to 20%, Hf: 0.01 to 5%, and further contains W. : 0.1 to 10%, one or two of Fe and Ni: 1 to 10%, and the remainder is Co and unavoidable impurities (weight %). Co-based casting alloy. 7 Contains C: 0.01 to 0.65%, Si: 0.1 to 5%, Mn: 0.1 to 3%, Cr: 12 to 35%, Mo: 1 to 20%, Hf: 0.01 to 5%, and further contains Ti , Nb, and Ta: 0.1 to 12%, and one or two of Fe and Ni: 1 to 10%, with the remainder consisting of Co and inevitable impurities. A dental Co-based casting alloy characterized by having a composition (more than % by weight). 8 Contains C: 0.01 to 0.65%, Si: 0.1 to 5%, Mn: 0.1 to 3%, Cr: 12 to 35%, Mo: 1 to 20%, Hf: 0.01 to 5%, and further contains W. : 0.1 to 10%, one or more of Ti, Nb, and Ta: 0.1 to 12%, and one or two of Fe and Ni: 1 to 10%, A dental Co-based casting alloy characterized by having a composition (or more by weight) of Co and unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59124737A JPS613860A (en) | 1984-06-18 | 1984-06-18 | Dental cast co alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59124737A JPS613860A (en) | 1984-06-18 | 1984-06-18 | Dental cast co alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS613860A JPS613860A (en) | 1986-01-09 |
| JPS6330379B2 true JPS6330379B2 (en) | 1988-06-17 |
Family
ID=14892864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59124737A Granted JPS613860A (en) | 1984-06-18 | 1984-06-18 | Dental cast co alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS613860A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4028870A1 (en) * | 1990-09-12 | 1992-03-19 | Thyssen Edelstahlwerke Ag | Metal alloy for cast dental prosthetic frameworks - contg. carbon@, silicon@, manganese@, chromium@, molybdenum@ tantalum@, nitrogen cobalt@ |
| CN106041105A (en) * | 2016-05-25 | 2016-10-26 | 安徽省春谷3D打印智能装备产业技术研究院有限公司 | High-strength cobalt-tantalum-molybdenum alloy medical 3D-printing metal powder and preparation method thereof |
| US11155904B2 (en) | 2019-07-11 | 2021-10-26 | L.E. Jones Company | Cobalt-rich wear resistant alloy and method of making and use thereof |
-
1984
- 1984-06-18 JP JP59124737A patent/JPS613860A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS613860A (en) | 1986-01-09 |
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