Linear friction welding performance of hydrogenated Ti-6Al-4V alloy

被引：0
|
作者：
Liu, Pengtao [1 ]
Zhao, Xiujuan [1 ]
Zhang, Tiancang [2 ]
Hou, Hongliang [2 ]
Chen, Chunhuan [1 ]
Ren, Ruiming [1 ]
机构：
[1] Dalian Jiaotong Univ, Coll Mat Sci & Engn, Dalian 116028, Peoples R China
[2] Beijing Aeronaut Mfg Technol Res Inst, Beijing 100024, Peoples R China
来源：
MATERIALS PROCESSING TECHNOLOGIES, PTS 1 AND 2 | 2011年 / 154-155卷
关键词：
Hydrogenated Ti-6Al-4V alloy; Linear friction welding; Microstructure; Tensile properties; TI6AL4V;
D O I：
10.4028/www.scientific.net/AMR.154-155.23
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The linear friction welding (LFW) performance of hydrogenated Ti-6Al-4V alloy was investigated. The effects of hydrogen on macro-features and axial shortening as well as microstructure of Ti-6Al-4V alloy joints welded by LFW were analyzed. The mechanical properties of joints after dehydrogenation were also examined by tensile test at room temperature. The results indicated that the hydrogenated Ti-6Al-4V specimens containing 0.3 similar to 0.4 wt% hydrogen had a better microstructure and plastic deformation ability, which resulted in the optimum welding performance improvement of LFW. The critical power input of LFW could be lowered by addition of hydrogen to Ti-6Al-4V alloy. The results of tensile test showed that joints which experienced thermohydrogen processing possessed the same tensile strength and plasticity as original joints.
引用
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页码：23 / +
页数：2
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