Mechanical property and characterization of TA1 titanium alloy sheets welded by vacuum electron beam welding

被引：21
作者：
Su, Mo-Lin [1 ]
Li, Jia-Ning [1 ]
Liu, Ke-Gao [1 ]
Qi, Wen-Jun [2 ]
Weng, Fei [3 ]
Zhang, Yuan-Bin [1 ]
Li, Ji-Shuai [2 ]
机构：
[1] Shandong Jianzhu Univ, Sch Mat Sci & Engn, Jinan 250101, Shandong, Peoples R China
[2] Guangzhou Res Inst Nonferrous Met, Guangdong Gen Res Inst Ind Technol, Guangzhou 510650, Guangdong, Peoples R China
[3] Singapore Inst Mfg Technol, 73 Nanyang Dr, Singapore 637662, Singapore
来源：
VACUUM | 2019年 / 159卷
关键词：
TA1 titanium alloy; Vacuum electron beam welding; Tensile strength; Ductile fracture; MICROSTRUCTURE; TEMPERATURE; TI-6AL-4V; BEHAVIOR; DEFORMATION; EVOLUTION; JOINTS;
D O I：
10.1016/j.vacuum.2018.10.027
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Vacuum electron beam welding (EBW) was used to weld the thick TA1 titanium alloy sheets. Test results indicated that the coarse serrated-shape a and needle-shape alpha' grains were observed in weld zone (WZ); the heat affected zone (HAZ) near the weld center consisted of alpha and alpha' gains; the tensile strength of the TA1 joint was 344 MPa, which was significantly higher than that of the base metal (BM); the fracture of the tensile samples with different penetration depths all occurred on BM, the tensile property of the upper-bottom joint was better than that of the middle joint; moreover, lots of dimples can be observed on the fatigue fracture surface, exhibiting the characterization of the ductile fracture.
引用
收藏
页码：315 / 318
页数：4
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