Microstructure Evolution and Tensile Properties of 304L Stainless Steel Subjected to Surface Mechanical Attrition Treatment

IMECH-IR > 非线性力学国家重点实验室

	Microstructure Evolution and Tensile Properties of 304L Stainless Steel Subjected to Surface Mechanical Attrition Treatment
	Jiang P(姜萍); Lu J; Wu XL(武晓雷); Jiang, P (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China
会议录名称	NANOMATERIALS BY SEVERE PLASTIC DEFORMATION: NANOSPD5, PTS 1 AND 2
	2011
页码	175-179
会议名称	5th International Conference on Nanomaterials by Severe Plastic Deformation
会议日期	MAR 21-25, 2011
会议地点	Nanjing, PEOPLES R CHINA
摘要	A gradient nanostructured layer (GNsL) was generated on the two sides of bulk sample in 304L stainless steel by means of the surface mechanical attrition treatment. The microstructure of the GNsL was characterized via TEM observation. The prominent microstructural features involve the intersection of multi-system twin operation, subdividing the original grains into blocks, a martensite transformation mainly occurring at the interface of the twins as well, and the randomly orientated nanocrystallites at the top of surface. After annealing at 750 degrees C for 10 min, recovery had occurred and the dislocation density was much reduced. The vast majority of the grains at the top surface were in the nanocrystalline/ultrafine range, with some recrystallization regions. The uniaxial tensile tests were performed to obtain the mechanical property of bulk samples with GNsL. The yield strength was about 2 times higher than that of the coarse-grained counterpart, but with a decrease in uniform elongation and elongation to failure as well. The relationship between the microstructure and mechanical property was discussed in detail.
关键词	Surface Mechanical Attrition Treatment 304l Stainless Steel Gradient Nanostructured Layer Mechanical Twinning Mechanical Properties
WOS记录号	WOS:000299234300029
课题组名称	LNM材料介观力学性能的表征
资助信息	Nanjing Univ Sci & Technol
URL	查看原文
收录类别	CPCI-S ; EI
语种	英语
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/45249
专题	非线性力学国家重点实验室
通讯作者	Jiang, P (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Jiang P,Lu J,Wu XL,et al. Microstructure Evolution and Tensile Properties of 304L Stainless Steel Subjected to Surface Mechanical Attrition Treatment[C]NANOMATERIALS BY SEVERE PLASTIC DEFORMATION: NANOSPD5, PTS 1 AND 2,2011:175-179.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Conf2011-011.pdf（2515KB）	会议论文		开放获取	CC BY-NC-SA	浏览下载