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Effects of shot peening and laser remelting on oxygen-permeation treatment of titanium alloy
Ma, HY; Wang, MC; Wei, Z; Xin, GC
Corresponding AuthorMa, HY()
2004-10-01
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume14Pages:268-273
AbstractThe 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.
Keywordshot peening laser remelting oxygen-permeation titanium solution
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000224821800059
PublisherALLERTON PRESS INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/119834
Collection中国科学院金属研究所
Corresponding AuthorMa, HY
Affiliation1.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
Recommended Citation
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.
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