[1]业冬,李俊,姜雯,等.含W的Cr15型超级马氏体不锈钢组织性能分析[J].深圳大学学报理工版,2012,29(No.3(189-282)):258-263.[doi:10.3724/SP.J.1249.2012.03258]
 YE Dong,LI Jun,JIANG Wen,et al.Microstructure and mechanical properties of a 15%Cr supermartensitic stainless steel microalloyed with tungsten[J].Journal of Shenzhen University Science and Engineering,2012,29(No.3(189-282)):258-263.[doi:10.3724/SP.J.1249.2012.03258]
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含W的Cr15型超级马氏体不锈钢组织性能分析()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第29卷
期数:
2012年No.3(189-282)
页码:
258-263
栏目:
材料科学
出版日期:
2012-05-21

文章信息/Info

Title:
Microstructure and mechanical properties of a 15%Cr supermartensitic stainless steel microalloyed with tungsten
作者:
业冬1李俊1姜雯1苏杰2赵昆渝1
1) 昆明理工大学材料科学与工程学院,昆明 650093
2)钢铁研究总院结构所,北京 100081
Author(s):
YE Dong1 LI Jun1 JIANG Wen1 SU Jie2 and ZHAO Kun-yu1
1) Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P.R.China
2) Institute for Structural Materials, Central Iron and Steel Research Institute, Beijing 100081, P.R.China
关键词:
金属材料超级马氏体不锈钢逆变奥氏体微观结构力学性能
Keywords:
metal materialssuper martensitic stainless steelreversed austenitetungstenmicrostructuremechanical property
分类号:
TG 142.71
DOI:
10.3724/SP.J.1249.2012.03258
文献标志码:
A
摘要:
采用全自动热膨胀相变仪、光学显微镜、透射电镜、高分辨电镜及能谱分析和力学万能试验机等手段,研究含W的Cr15型超级马氏体不锈钢经淬火+回火后的微观组织和力学性能.结果表明,淬火+回火后的微观组织为回火马氏体及分布在马氏体基体中的逆变奥氏体两相组织,形成的逆变奥氏体与马氏体板条符合K-S关系.在基体上弥散析出的纳米级金属化合物Laves相以及富铜相ε-Cu起到强化作用.该钢具有优良的力学性能,洛氏硬度为26~36,抗拉强度为895~1 009 MPa,延伸率为17%~21%.
Abstract:
The microstructure and mechanical properties of a 15%Cr super martensitic stainless steel microalloyed with tungsten were investigated by means of dilatometer, optical microscopy, transmission electron microscopy(TEM), high-resolution transmission electron microscopy (HRTEM), energy dispersive spectrometer(EDS), and tensile and hardness tests. The results revealed that a typical biphase structure of tempered martensite and reversed austenite which diffusional distributed in martensite matrix was selected after quenching and tempering. The reversed austenite and martensite matrix meet the K-S relationship. The diffraction pattern calculations and the EDS analysis of TEM confirmed that the nanometer-sized Laves particles and rich copper phase ε-Cu precipitated in the matrix during tempering in the investigated steel, which were contributive to improve strength. The steel microalloyed with W showed an improved mechanical property values: 26~36 RC hardness, 895~1 009 MPa tensile strength, 17%~21% elongation.

参考文献/References:

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备注/Memo

备注/Memo:
Received:2011-02-20;Revised:2011-12-20;Accepted:2012-03-04
Foundation:National Key Technology Research and Development Program of the Ministry of Science and Technology of China(2007BAE51B01)
Corresponding author:Professor ZHAO Kun-yu. E-mail: kyzhao@yahoo.com.cn
Citation:YE Dong,LI Jun,JIANG Wen,et al. Microstructure and mechanical properties of a 15%Cr supermartensitic stainless steel microalloyed with tungsten [J]. Journal of Shenzhen University Science and Engineering, 2012, 29(3): 258-263.(in Chinese)
基金项目:国家科技支撑计划资助项目(2007BAE51B01)
作者简介:业冬(1981-),女(汉族),湖北省黄冈市人,昆明理工大学讲师、博士.E-mail: nina8117@163.com.
引文:业冬,李俊,姜雯,等. 含W的Cr15型超级马氏体不锈钢组织性能分析[J]. 深圳大学学报理工版,2012,29(3):258-263.
更新日期/Last Update: 2012-05-28