Influence of mechanical surface treatments on fatigue strength of commercial purity titanium

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	Influence of mechanical surface treatments on fatigue strength of commercial purity titanium
	Zhang, JB ; Fan, D ; Yu, SR ; Wang, JY
刊名	JOURNAL OF MATERIALS SCIENCE
	2003-08-15
卷号	38 期号:16 页码:3455-3459
ISSN号	0022-2461
英文摘要	A comparative study of two mechanical surface treatments of shot peening (SP) and cold rolling (CR) on fatigue strength of commercial purity titanium has been conducted. The treated surface was characterized by using transmission electron microscopy (TEM), X-ray diffraction (XRD), and surface roughness measurements. Experimental result shows that SP and CR increased the fatigue strength of commercial purity titanium, and moreover, the following results were obtained: ( 1) The improvement of fatigue strength is related to the formation of deformation twins in strengthened layer. Before or after fatigue, the samples strengthened by SP or CR not only have twin shape and number change, but also have twin interactions in the SP and twin-grain boundary interactions in the CR. ( 2) XRD measurement demonstrated that SP leads to surface compressive residual stress are much higher than those after CR. Surface compressive residual stress has higher relaxation in the SP than in the CR condition during cyclic loading, then the surface compressive residual stress has the same values after fatigue deformation. ( 3) Surface roughness resulting from SP is ten times of CR. (C) 2003 Kluwer Academic Publishers.
WOS研究方向	Materials Science
语种	英语
出版者	KLUWER ACADEMIC PUBL
WOS记录号	WOS:000184736600005
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/35881]
专题	兰州理工大学
通讯作者	Zhang, JB
作者单位	1.Gansu Univ Technol, State Key Lab New Nonferrous Met Mat, Lanzhou 730050, Peoples R China 2.Xian Inst Technol, Dept Mat Sci & Engn, Xian 710032, Peoples R China
推荐引用方式 GB/T 7714	Zhang, JB,Fan, D,Yu, SR,et al. Influence of mechanical surface treatments on fatigue strength of commercial purity titanium[J]. JOURNAL OF MATERIALS SCIENCE,2003,38(16):3455-3459.
APA	Zhang, JB,Fan, D,Yu, SR,&Wang, JY.(2003).Influence of mechanical surface treatments on fatigue strength of commercial purity titanium.JOURNAL OF MATERIALS SCIENCE,38(16),3455-3459.
MLA	Zhang, JB,et al."Influence of mechanical surface treatments on fatigue strength of commercial purity titanium".JOURNAL OF MATERIALS SCIENCE 38.16(2003):3455-3459.