Fracture toughness of thick plates of Ti-6Al-4V weldments

被引:0
|
作者
Eizaguirre, I [1 ]
Santamaria, F [1 ]
Irisarri, AM [1 ]
Plaza, LM [1 ]
机构
[1] INASMET, San Sebastian 20009, Spain
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中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The fracture behaviour of thick plates of Ti-6Al-4V alloy joined by means of plasma are welding (PAW) and two different electron beam welding (EBW) procedures. In the whole temperature range PAW weld metal specimens exhibited higher toughness than base material. This behaviour has been attributed to the acicular microstructure of the weld metal compared to the equiaxic of parent alloy. EBW welded metals also showed higher toughness than base material although no so high as PAW ones. These results could be associated with the presence of a small volume fraction of brittle alpha prime martensite due to the higher cooling rate.
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页码:895 / 900
页数:6
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