Effect of Adding Nitrogen on Microstructure and Mechanical Properties of Forged CoCrMo Alloy

Special Steel ›› 2022, Vol. 43 ›› Issue (1): 90-92.

Previous Articles Next Articles

Effect of Adding Nitrogen on Microstructure and Mechanical Properties of Forged CoCrMo Alloy

Sun Guoqiang, Xing Changjun, Yao Chunfa, Ning Xiaozhi， Wu Lin

Institute of Steel for Engineering, Central Iron and Steel Research Institute, Beijing 100081

Received:2021-05-07 Online:2022-01-25 Published:2022-03-18

加氮对锻造CoCrMo合金微观组织和力学性能的影响

孙国强，邢长军，姚春发，宁小智，吴林

钢铁研究总院工程用钢所，北京 100081

作者简介:孙国强(1987-)，男，硕士(2014年昆明理工大学)，工程师，2010年河南理工大学(本科)毕业，金属材料加工研究。

Abstract

Abstract: Two heats of Co66Cr28Mo6 alloy with 0. 005% N and 0. 190% N are melted by 100 kg VIF + ESR process, and forged to Φ15 mm bar. With the same process conditions, the CoCrMo alloy containing 0.190% N has a finer grain size (10～11 rating) ,and the precipitates exist in the form of nanoscale M( CN ) type at the grain boundary. A large number of deformation twins and dislocation interactions further enhance the strength of the material, the tensile strength of alloy increases from 1 160 MPa to 1 360 MPa.

摘要： 采用 100 kg 真空感应炉 + 电渣双联冶炼 N 含量分别为 0．005% 和 0．190% 两炉 Co66Cr28Mo6 合金，并锻造成 Φ15 mm 棒材。在相同工艺条件下，含 0．190% N 的 CoCrMo 合金具有更细小的晶粒( 10 ～11 级)，且析出相以纳米级 M ( CN) 型形式存在于晶界处，大量的形变孪晶和位错交互，合金抗拉强度由 1 160 MPa 提高至 1 360 MPa。

关键词: 形变孪晶, 位错, N, CoCrMo 合金, , 纳米析出相

Sun Guoqiang, Xing Changjun, Yao Chunfa, Ning Xiaozhi, Wu Lin. Effect of Adding Nitrogen on Microstructure and Mechanical Properties of Forged CoCrMo Alloy[J]. Special Steel, 2022, 43(1): 90-92.

孙国强, 邢长军, 姚春发, 宁小智, 吴林. 加氮对锻造CoCrMo合金微观组织和力学性能的影响[J]. 特殊钢, 2022, 43(1): 90-92.

References

［1］王彩梅，周学宇，孙源，等．航空材料在外科植入物骨关节假体中的应用［J］．材料工程，2007 ( 3) : 58-61．
［2］饶洋，郑亮，刘晓功，等．碳含量对 CoCrMo 合金显微组织和拉伸性能的影响［J］．材料工程，2009 (5) : 14-16．
［3］Chan FW，Bobyn JD， Mesley JB， et al． Engineering Issues and Wear Performance of Metal on Metal hip Implants［J］． Clinical Orthopaedics and Ｒelated Ｒesearch， 1996， 333 ( 11) : 96-107．
［4］Shettlemore MG，Bundy KJ． Examination of in Vivo Influences on Bioluminescent Microbial Assessment of Corrosion Product Toxicity［J］． Biomaterials． 2001， 22 ( 16) : 2215-2228．
［5］ Eiselstein LE，Proctor DM， Flowers TC． Trivalent and Hexavalent Chromium Issues in Medical Implants［C］． July 4-8，2006． Materials Science Forum Vols，2007．
［6］赵杰，朱世杰，李晓刚，等，高温合金一宇航和工业动力用的高温材料［M］．大连 : 大连理工大学出版社，1991 : 86-104．
［7］史胜凤，林君，周炳，等，医用钴基合金的组织结构及耐腐蚀性能［J］．稀有金属材料及工程，2007，36 ( 1) : 37-40．
［8］周炳，史胜凤，王小祥．医用 CoCrMoC 合金的组织结构及耐磨损生能［J］．稀有金属材料及工程，2006，35 ( 1) : 105-108．
［9］Dobbs HS，Ｒobertson JLM． The Incidence and Significance of Rub Marks on The Stem of Ｒemoved Total Hip Ｒeplacements［J］． Journal of Biomedical Materials Ｒesearch， 1983， 17 ( 1) : 83-89．
［10］Ibrahim Purawiardi，I Nyoman Gede Puteayasa，Fendy Ｒokhmanto，et al．Growth of ν-Co Phase on As-Cast Co-Cr-Mo Alloy Via 1 200 ℃ Solution Treatment : A Crystal Structure Investigation［C］． April 22， 2020． AIP Conference Proceedings，2020．
［11］Murat Isik， Mitsuo Niinomi， Ken Cho， et al． Microstructural Analysis of Biomedical Co-Cr-Mo Alloy Subjected to High-Pressure Torsion Processing［J］． Engineering Materials， 2014 (616) : 263-269．
［12］Ueki K，Kasamatsu M， Ueda K， et al． Precipitation Duringγ-εPhase Transformation in Biomedical Co-Cr-Mo Alloys Fabricated by Electron Beam Melting［J］． Metals． 2020， 10 ( 1) : 71-83．
［13］马玉喜．高氮奥氏体钢的韧脆性转变与层错能的关系［J］．钢铁研究，2011，39 (2) : 11-14．
［14］郑善举，郝晓东，洪益成，等．高氮不锈钢的奥氏体晶粒长大规律［J］．材料热处理学报，2017．38 (7) : 180-186．

Effect of Adding Nitrogen on Microstructure and Mechanical Properties of Forged CoCrMo Alloy

加氮对锻造CoCrMo合金微观组织和力学性能的影响

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 0

Recommended Articles

Metrics

Comments