首页 | 本学科首页   官方微博 | 高级检索  
     

淬火温度对12Cr14Ni2不锈结构钢组织及力学性能的影响
引用本文:朱成林,高秀华,王明明,宋丽英. 淬火温度对12Cr14Ni2不锈结构钢组织及力学性能的影响[J]. 东北大学学报(自然科学版), 2021, 42(6): 781-788. DOI: 10.12068/j.issn.1005-3026.2021.06.004
作者姓名:朱成林  高秀华  王明明  宋丽英
作者单位:(东北大学 轧制技术及连轧自动化国家重点实验室, 辽宁 沈阳110819)
基金项目:国家高技术研究发展计划项目(2015AA03A501).
摘    要:使用光学显微镜(OM)、扫描电镜(SEM)、电子探针(EPMA)及透射电镜(TEM)分析研究了淬火温度对12Cr14Ni2索氏体不锈结构钢的显微组织和力学性能的影响.结果表明:热轧后的实验钢板经900~1050℃保温0.5 h淬火及710℃高温回火2 h热处理后,均可以获得细小均匀的回火索氏体组织;回火索氏体晶界处存在...

关 键 词:12Cr14Ni2索氏体不锈结构钢  淬火温度  热处理  显微组织  力学性能
修稿时间:2020-07-31

Effect of Quenching Temperature on Microstructure and Mechanical Properties of 12Cr14Ni2 Stainless Structural Steel
ZHU Cheng-lin,GAO Xiu-hua,WANG Ming-ming,SONG Li-ying. Effect of Quenching Temperature on Microstructure and Mechanical Properties of 12Cr14Ni2 Stainless Structural Steel[J]. Journal of Northeastern University(Natural Science), 2021, 42(6): 781-788. DOI: 10.12068/j.issn.1005-3026.2021.06.004
Authors:ZHU Cheng-lin  GAO Xiu-hua  WANG Ming-ming  SONG Li-ying
Affiliation:The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China.
Abstract:Effect of quenching temperature on microstructure and mechanical properties of a 12Cr14Ni2 sorbite stainless steel was investigated by optical microscopy, scanning electron microscopy, electron probe and transmission electron microscopy, respectively. The results show that the fine and uniform tempered sorbite structures can be obtained in the hot-rolled steel plate after quenching at 900~1050℃ for 0.5h and tempering at 710℃ for 2h. There are a large number of Cr-riched M23C6 precipitates at the grain boundaries of tempered sorbite with a diameter of 100~200nm. As the quenching temperature increases from 900℃ to 1050℃, the austenitic grain size gradually increases after quenching, resulting in the coarsening of the tempered sorbite structure after heat treatments. The strength of the experimental steel first decreases and then increases, and both the elongation and impact energy increase first and then decrease. The excellent mechanical properties can be obtained at an optimal quenching temperature of 950℃, corresponding to the tensile strength of 767MPa, the yield strength of 588MPa, the elongation after fracture of 22%, and the impact energy of 107J at 20℃.
Keywords:12Cr14Ni2 sorbite stainless structural steel   quenching temperature   heat treatment   microstructure   mechanical property,
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《东北大学学报(自然科学版)》浏览原始摘要信息
点击此处可从《东北大学学报(自然科学版)》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号