Surface hardening of titanium alloys by oxygen-diffusion-permeation

被引：0
|
作者：
马红岩
王茂才
张松
辛公春
魏政
机构：
[1] China
[2] Chinese Academy of Sciences
[3] Institute of Metal Research
[4] School of Materials Science and Engineering
[5] Shenyang 110016
[6] Shenyang 110023
[7] Shenyang 110043
[8] Shenyang Liming Aero-engine Group Corporation
[9] Shenyang Polytechnic University
[10] State Key Laboratory for Corrosion and Protection of Metals
来源：
TransactionsofNonferrousMetalsSocietyofChina | 2003年 / 01期
关键词：
Ti based alloys; oxygen-diffusion-permeation; reinforcement;
D O I：
暂无
中图分类号：
TG156.3 [淬火、表面淬火];
学科分类号：
摘要：
The surface oxygen-diffusion-permeation behaviors of Ti based alloys were investigated. MEF4A optical microscopy and HMV-2000 micro-hardness tester were employed to characterize the microstructure and micro-hardness of the oxygen-permeated alloys. The results show that the micro-hardness of Ti based alloys are sharply enhanced by the permeation of oxygen. The microstructure and micro-hardness of oxygen-permeated layer are strongly related to the oxygen-diffusion-permeation techniques. The solid solution of oxygen in α phase can improve the transformation temperature from α phase to β phase and enlarge the region of α phase so as to improve the micro-hardness of surface layer. Therefore, surface oxygen-diffusion-permeation would be a feasible method to reinforce Ti based alloys based on the solid solution of oxygen in α-Ti. At last, a diffusion-solution model was put forward.
引用
收藏
页码：73 / 77
页数：5
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