史世凤,李宭

• 1:北京北冶功能材料有限公司

摘要(Abstract)：

借助于光学显微镜和X射线衍射仪等研究了奥氏体不锈钢弹簧丝在经过97.7%的大变形后抗拉强度高达1980 MPa的强化现象。结果表明,钢丝的硬度和抗拉强度随着变形量的增加而升高。在大变形量时,沿拉拔方向的组织趋向纤维化,变形马氏体的体积分数在增加,拉拔钢丝的抗拉强度值升高的幅度增加。分析认为变形强化,纤维组织强化和马氏体相变强化是大变形强化的主要原因。

关键词(KeyWords)： 奥氏体不锈钢;大变形;弹簧丝;强化

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 史世凤,李宭

DOI: 10.13289/j.issn.1009-6264.2011.11.015

参考文献(References)：

• [1]史美堂,张士林,查攀美.奥氏体不锈钢大变形量形变热处理强化机理[J].上海金属,1981,3(3):29-35.SHI Mei-tang,ZHANG Shi-lin,ZHA Fan-mei.Austenitic stainless steel large deformation strengthening mechanism of thermomechanical treatment[J].Shanghai Metal,1981,3(3):29-35.
• [2]Yang Y S,Bae J G,Park C G.Microstrucrure and mechanical propertiies of heavily cold-drawn steel wires[J].Materials Science and Enginereing A,2009,508:148-155.
• [3]李宭,方威,胡小军.高强度SUS304不锈钢线切割丝生产工艺研究[J].金属制品,1999,29(3):20-22.LI Qun,FANG Wei,HU Xiao-jun.SUS304 high-strength stainless steel wire production process of cutting wire[J].Metal Products,1999,29(3):20-22.
• [4]Krasilnikov N,Lojkowski W,Pakiela Z,et al.Tensile strength and ductility of ultra-fine-grained nickel processed by severe plastic deformation[J].Materials Science and Engineering A,2005,397:330-337.
• [5]寇宏宁,刘国权,杨建春,等.金属橡胶用Cr-Ni-Mn系不锈钢丝的微观组织及力学性能研究[J].航空材料学报,2006,26(4):24-28.KOU Hong-ning,LIU Guo-quan,YANG Jian-chun,et al.Metal rubber,Cr-Ni-Mn stainless steel wire with the microstructure and mechanical properties[J].Journal of Aeronautical Materials,2006,26(4):24-28.
• [6]许康萍,张萌.超细不锈钢丝拉拔过程中显微组织及力学性能[J].南昌大学学报:理科版,2008,32(2):173-177.XU Kang-ping,ZHANG Meng.The process of fine stainless steel strands pull the microstructure and mechanical properties[J].Journal of NanchangUniversity:Natural Science,2008,32(2):173-177.
• [7]毛萍莉,苏国跃,孔凡亚,等.1Cr18Ni9Ti超高强度不锈钢丝的微观组织分析[J].热加工工艺,2004,2:32-33.MAO Ping-li,SU Guo-yue,KONG Fan-ya,et al.1Cr18Ni9Ti ultra-high strength stainless steel wire of the microstructure analysis[J].Hot WorkingTechnology,2004,2:32-33.
• [8]Jeom-yong Choi,Won Jin.Strain unduced martensite formation and its effect on strain hardening behavior in the cold drawn 304 austenite stainlesssteels[J].Scripta Materialia,1997,36(1):99-104.
• [9]董秀萍,刘国权,杨建春,等.金属橡胶用冷拉奥氏体不锈钢丝的微观组织[J].航空材料学报,2007,27(6):35-39.DONG Xiu-ping,LIU Guo-quan,YANG Jian-chun,et al.Metal rubber,cold-drawn austenitic stainless steel wire with the microstructure[J].Journal ofAeronautical Materials,2007,27(6):35-39.
• [10]黄克文,孔凡亚.冷拔高强00Cr18Ni9N不锈钢丝显微组织与力学性能[J].金属学报,2009,45(3):275-279.HUANG Ke-wen,KONG Fan-ya.00Cr18Ni9N cold-drawn high-strength stainless steel wire microstructure and mechanical properties[J].ActaMetallurgica Sinica,2009,45(3):275-279.
• [11]Nieh T G,Wadsworth J.Hall-Petch relation in nanocrystalline solid[J].Scripta Materialia,1991,25:955-958.
• [12]范建文.800MPa级低合金钢超细晶组织与力学性能研究[D].钢铁研究总院,2000.
• [13]GAO Yu-wei,JING Tian-fu,QIAO Gui-ying,et al.Microstructural evolution and tensile properties of low-carbon steel with martensitic microstructrueduring warm deforming and annealing[J].Journal of University of Science and Technology Beijing,2008,15(3):245-249.
• [14]Okitsu Y,Takata N,Tsuji N.A new route to fabricate ultrafine-grained structures in carbon steels without severe plastic deformation[J].ScriptaMaterialia,2009,15:76-79.
• [15]Jing T,Gao Y,Qiao G,et al.Nanocrystalline steel processed by severe rolling of lath martensite[J].Materials Science and Enginereing A,2006,432:216-220.
• [16]苏德达.冷拔碳素钢丝的纤维组织及其亚结构[J].金属制品,1999,29(3):1-3.SU De-da.Cold drawn carbon steel wire fiber organization and its sub-structure[J].Metal Products,1999,29(3):1-3.
• [17]Eskandari M,Kermanpur A,Najafizadeh A.Formation of nanocrystalline structure in 301 stainless steel produced by martensite treatment[J].Metallurgical and Materials Transactions A,2009,9:2241-2249.
• [18]肖纪美.不锈钢的金属学问题(第2版)[M].北京:冶金工业出版社,2006.

文章评论(Comment)：