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材料导报  2020, Vol. 34 Issue (12): 12122-12126    https://doi.org/10.11896/cldb.19110119
  金属与金属基复合材料 |
退火温度对热轧态M390组织与性能的影响
王铁军1,2, 杨博3, 梁晨1,2, 车洪艳1,2, 秦巍1,2, 曹睿3
1 中国钢研科技集团有限公司,安泰科技股份有限公司,北京 100081
2 河北省热等静压工程技术研究中心,涿州 072750
3 兰州理工大学有色金属先进加工与再利用省部共建国家重点实验室,兰州 730050
Effect of Annealing Temperature on Microstructure and Mechanical Property of Hot-rolled M390
WANG Tiejun1,2, YANG Bo3, LIANG Chen1,2, CHE Hongyan1,2, QIN Wei1,2, CAO Rui3
1 Advanced Technology & Materials Co., Ltd., China Iron & Steel Research Institute Group, Beijing 100081, China
2 Engineering and Technology Research Center of Hot Isostatic Pressing, Zhuozhou 072750, China
3 State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology,Lanzhou 730050, China
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摘要 对不同始轧温度热轧后的高碳高铬马氏体不锈钢M390在650 ℃、750 ℃和850 ℃下进行退火热处理,通过热膨胀仪、维氏硬度计、X射线衍射仪及扫描电子显微镜(SEM)等研究了M390在热轧加工过程中不同始轧温度及轧后不同退火温度下的组织及力学性能的变化规律。结果表明:随着热轧后退火温度的提高,M390呈现出强度下降但塑性提高的趋势,同时碳化物尺寸随温度提高进一步变大但数量减少。在温度相对较高即1 200 ℃始轧后,再经过高温850 ℃退火后的M390,其铁素体基体上均匀分布着细小的球状碳化物。该M390的抗拉强度和断后延伸率分别为920 MPa、0.83%,表现出最佳的综合力学性能,这有利于材料后续的加工和热处理。
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王铁军
杨博
梁晨
车洪艳
秦巍
曹睿
关键词:  高碳不锈钢  热轧态  退火温度  组织及力学性能    
Abstract: Hot-rolled M390 high-carbon and high-chromium martensitic stainless steel was annealed at 650 ℃, 750 ℃ and 850 ℃. Therefore, the changes of microstructure and mechanical properties of M390 under different initial rolling temperatures and different annealing temperatures after hot rolling were studied by thermal expansion machine, Vickers hardness tester, X-ray diffractometer and scanning electron microscope (SEM). The results show that the strength of M390 deteriorates but the plasticity increases significantly with the increase of annealing temperature after hot rolling, while the carbide size becomes larger and the number of carbides decreases. After initial rolling at a high temperature of 1 200 ℃ and then annealing at a high temperature of 850 ℃, M390's ferrite matrix uniformly distributed with fine spherical carbide. At this time, the best comprehensive mechanical properties with tensile strength of 920 MPa and elongation of 0.83% are obtained, which was facilitates to the subsequent processing and heat treatment of the material.
Key words:  high-carbon stainless steel    hot-rolled state    annealing temperature    microstructure and mechanical properties
                    发布日期:  2020-05-29
ZTFLH:  TG142.1  
基金资助: 国家自然科学基金(51675255;51761027)
通讯作者:  wangtj@atmcn.com   
作者简介:  王铁军,博士,教授级高工,现任安泰科技副总裁,党委委员,兼任《粉末冶金技术》《粉末冶金工业》编委会编委,安泰科技技术创新委员会主任委员等。长期从事难熔金属材料、金属陶瓷复合材料及热等静压技术等研究开发、应用推广及产业化工作,2004年入选“北京市科技新星”。共主持10项、参与15项国家级及企业技术创新项目,经验丰富,成果显著,是粉末冶金领域的知名专家。荣获中国有色金属工业科学技术奖二等奖2项,冶金科学技术奖三等奖3项,北京市科学技术三等奖1项,河北省冶金科学技术二等奖1项,中国核能行业协会科学技术三等奖1项;获授权专利33项。被授予“中央企业青年岗位能手”、“中央企业优秀共产党员”、中国钢研科技集团“优秀管理者”、“中国钢研劳动模范”等荣誉称号。
引用本文:    
王铁军, 杨博, 梁晨, 车洪艳, 秦巍, 曹睿. 退火温度对热轧态M390组织与性能的影响[J]. 材料导报, 2020, 34(12): 12122-12126.
WANG Tiejun, YANG Bo, LIANG Chen, CHE Hongyan, QIN Wei, CAO Rui. Effect of Annealing Temperature on Microstructure and Mechanical Property of Hot-rolled M390. Materials Reports, 2020, 34(12): 12122-12126.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.19110119  或          http://www.mater-rep.com/CN/Y2020/V34/I12/12122
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