热处理工艺对新型节镍奥氏体无磁钢组织和性能的影响
Effects of Heat Treatment Process on Microstructure and Mechanical Properties of New-Typed Low Nickel Austenitic Nonmagnetic Steel
摘 要
通过显微组织观察、拉伸试验、磁性能试验等方法分析了热处理工艺对一种新型节镍奥氏体无磁钢组织和性能的影响。结果表明: 经过1 150 ℃×1 h固溶+750 ℃×4 h时效处理后, 该钢中的析出相细小弥散, 具有良好的力学性能和较低的磁导率; 其屈服强度为637 MPa, 抗拉强度为1 134 MPa, 伸长率为36.8%, 磁导率为1.254×10-6 H·m-1。
固溶时效处理
显微组织
力学性能
磁导率
nonmagnetic steel
solid solution and aging treatment
microstructure
mechanical property
permeability
Abstract
The effect of heat treatment on microstructure and properties of a new-typed low nickel austenitic nonmagnetic steel were analyzed by observing microstructure, tensile testing and magnetic property testing. The results show that the precipitation phase in the steel was fine and dispersive after solid solution at 1 150 ℃ for 1 h and aging at 750 ℃ for 4 h, the tested steel could own good mechanical properties and low permeability, and the yield strength was 637 MPa, tensile strength was 1 134 MPa, elongation was 36.8% and permeability was 1.254 × 10-6 H·m-1.
中图分类号 TG113.2
所属栏目 新材料 新工艺
基金项目
收稿日期 2011/4/22
修改稿日期 2011/10/1
网络出版日期
作者单位点击查看
备注水恒勇(1977-), 男, 安徽芜湖人, 博士研究生。
引用该论文: SHUI Heng-yong,LIU Ji-xiong,LI Mei-lin,ZHAO Ai-min,CAO Jia-li. Effects of Heat Treatment Process on Microstructure and Mechanical Properties of New-Typed Low Nickel Austenitic Nonmagnetic Steel[J]. Materials for mechancial engineering, 2012, 36(5): 69～72
水恒勇,刘继雄,李美琳,赵爱民,曹嘉丽. 热处理工艺对新型节镍奥氏体无磁钢组织和性能的影响[J]. 机械工程材料, 2012, 36(5): 69～72
被引情况:
【1】袁丰伟,郑海忠,鲁世强,胡春文,王晓震, "固溶和时效对0Cr21Ni6Mn9N含氮奥氏体不锈钢组织的影响",机械工程材料 38, 31-34(2014)
【2】秦子威,汪宏斌,吴益文, "连铸无磁辊用X5NiCrTi2615MoAlVB钢中时效析出相的长大动力学",机械工程材料 40, 27-29(2016)
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参考文献
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【3】TAKAHASHI H, SHINDO Y, KINOSHITA H, et al.Mechanical properties and damage behavior of non-magnetic high manganese austenitic steels[J].Journal of Nuclear Materials, 1998, 258(1/3): 1644-1650．
【4】赵朴.化学成分和固溶温度对1Cr17Mn9Ni4N不锈钢组织和性能的影响[J].钢铁研究学报, 2003, 15(3): 21-24.
【5】李志, 高谦, 何冰.节镍型奥氏体不锈钢1Cr17Mn9Ni4N的组织和力学性能[J].钢铁研究学报, 2005, 17(2): 68-71.
【6】PUTATUNDA S K, UNNI S, LAWES G.Mechanical and magnetic properties of a new austenitic structural steel[J].Materials Science and Engineering A, 2005, 406: 254-260.
【7】NIESCHWITZ P, MEYBOHM C. New hydraulic radial forging machine for difficult to shape materials[J].Stahl and Eisen, 1991, 11(11): 69-72.
【8】余永宁.金属学原理[M].北京: 冶金工业出版社, 2000.
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