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[1]荣冬松,巩建鸣,姜勇.316L不锈钢准平衡气体渗碳层残余应力研究[J].南京工业大学学报(自然科学版),2015,37(06):39-43.[doi:10.3969/j.issn.1671-7627.2015.06.008]
 RONG Dongsong,GONG Jianming,JIANG Yong.Residual stress of paraequilibrium gas carburized layer on 316L austenitic stainless steel[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2015,37(06):39-43.[doi:10.3969/j.issn.1671-7627.2015.06.008]
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316L不锈钢准平衡气体渗碳层残余应力研究()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
37
期数:
2015年06期
页码:
39-43
栏目:
出版日期:
2015-11-20

文章信息/Info

Title:
Residual stress of paraequilibrium gas carburized layer on 316L austenitic stainless steel
文章编号:
1671-7627(2015)06-0039-05
作者:
荣冬松巩建鸣姜勇
南京工业大学 机械与动力工程学院,江苏 南京 211800
Author(s):
RONG DongsongGONG JianmingJIANG Yong
College of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211800,China
关键词:
奥氏体不锈钢 准平衡气体渗碳 压缩残余应力
Keywords:
austenitic stainless steel paraequilibrium gas carburization compressive residual stress
分类号:
TG156.8
DOI:
10.3969/j.issn.1671-7627.2015.06.008
文献标志码:
A
摘要:
利用X线衍射仪(XRD)、电子探针(EPMA)、扫描电子显微镜(SEM)、光学显微镜(OM)研究了316L奥氏体不锈钢准平衡气体渗碳层的残余应力、碳质量分数分布以及微观结构。结果表明:准平衡气体渗碳层内为单一的扩张奥氏体相(S相)结构; C原子的渗入及碳质量分数梯度分布,导致渗碳层表面产生极高的压缩残余应力,局部发生塑性变形。
Abstract:
The residual stress,carbon mass ratio and microstructure of paraequilibrium carburized layers on 316L austenitic stainless steel were analyzed by X-Ray diffraction(XRD),electron probe microanalyzer(EPMA),scanning electron microscopy(SEM),and optical microscope(OM).Results demonstrated that the carburized layer was single expanded austenite(S-phase).Extremely high compressive residual stress was generated on the surface of carburized layer due to the penetration of carbon atoms and its gradient.Plastic deformation was found on local carburized layer surface.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-08-30
基金项目:国家自然科学基金(51475224); 江苏省高校自然科学研究重大项目(14KJA470002); 江苏省普通高校研究生科研创新计划(CXZZ12_0420)
作者简介:荣冬松(1985—),男,江苏宿迁人,博士生,主要研究方向为奥氏体不锈钢表面强化及其性能; 巩建鸣(联系人),教授,E-mail:gongjm@njtech.edu.cn.
引用本文:荣冬松,巩建鸣,姜勇.316L不锈钢准平衡气体渗碳层残余应力研究[J].南京工业大学学报:自然科学版,2015,37(6):39-43..
更新日期/Last Update: 2015-11-20