Influence of the surface nanocrystallization on the gas nitriding of Ti-6Al-4V alloy

被引:93
作者
Ge, Liling [1 ]
Tian, Na [1 ]
Lu, Zhengxin [1 ]
You, Caiyin [1 ]
机构
[1] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China
关键词
Ti-6Al-4V alloy; Surface nanocrystallization; Gas nitriding; MECHANICAL ATTRITION TREATMENT; TITANIUM; IRON;
D O I
10.1016/j.apsusc.2013.09.105
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Supersonic Fine Particle Bombarding (SFPB) was performed on Ti-6Al-4V alloy to form surface nanostructures. The effect of the surface nanostructures on the gas nitriding was investigated by varying the nitriding temperature and time. Through SFPB process, a nanocrystalline surface layer with a mean grain size of 16nm was obtained, presenting a high hardness of 640 HV. In comparison to the surface without SFPB treatment, the treated surface exhibited a thick nitrogen diffusion layer and high hardness under the same nitriding process. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:412 / 416
页数:5
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