Effects of shot peening and laser remelting on oxygen-permeation treatment of titanium alloy

IMR OpenIR

	Effects of shot peening and laser remelting on oxygen-permeation treatment of titanium alloy
	Ma, HY ; Wang, MC ; Wei, Z ; Xin, GC
通讯作者	Ma, HY()
	2004-10-01
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	14 页码:268-273
摘要	The influence of surface pre-treatments, shot-peening (SP) and laser remelting (LR), on oxygen permeation behaviors of titanium alloy TC11 was investigated. Optical microscope, SEM with EDAX, XRD, and microhardness tester were employed to characterize the microstructure, composition and hardness of this alloy. The results show that the surface roughness is increased by shot-peening, and the microstructure with fine-grain can be obtained by LR pre-treatment. The pre-treated samples were oxygen-permeated at (810 +/- 10) degreesC for 10 h in atmospheric air. The outer layer consists essentially of TiO2, trace Ti2N, Ti3Al and Ti3AlN for the SP pre-treatment and thin oxygen solution layer is found in the subsurface layer. As for LR pre-treatment, the outer layer consists mainly of TiO2 and small amounts of TiO, and the inner layer consists of alpha crystals, rich in interstitial atoms. Samples by LR pre-treatment has thicker hardened layer with higher hardness values in comparison with SP pre-treated ones. The boost diffusion of oxygen and hardening mechanisms were discussed based on the experimental results.
关键词	shot peening laser remelting oxygen-permeation titanium solution
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000224821800059
出版者	ALLERTON PRESS INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/119836
专题	中国科学院金属研究所
通讯作者	Ma, HY
作者单位	1.Chinese Acad Sci, Grad Sch, Inst Met Res, State Key Lab Corros & Protect, Beijing 100030, Peoples R China 2.Shenyang Liming Aeroengine Grp Corp, Shenyang 110043, Peoples R China
推荐引用方式 GB/T 7714	Ma, HY,Wang, MC,Wei, Z,et al. Effects of shot peening and laser remelting on oxygen-permeation treatment of titanium alloy[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2004,14:268-273.
APA	Ma, HY,Wang, MC,Wei, Z,&Xin, GC.(2004).Effects of shot peening and laser remelting on oxygen-permeation treatment of titanium alloy.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,14,268-273.
MLA	Ma, HY,et al."Effects of shot peening and laser remelting on oxygen-permeation treatment of titanium alloy".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 14(2004):268-273.