Title of article
A study of fatigue damage evolution on pulsed Nd:YAG Ti6Al4V laser welded joints
Author/Authors
Liu، نويسنده , , Jing and Gao، نويسنده , , Xiao-Long and Zhang، نويسنده , , Lin-Jie and Zhang، نويسنده , , Jian-Xun، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2014
Pages
10
From page
84
To page
93
Abstract
The influence of the large microstructure gradient the fatigue damage behaviour of laser beam welded Ti6Al4V was investigated. The experimental results showed that the damage evolution of fatigue residual strength in the LBW joint was higher than that in the base metal (BM) sample, and the fatigue crack growth resistance of the fusion zone (FZ) in the LBW joint was greater than that of the BM. Compared with BM specimens, the heterogeneous micro-plastic deformation was easier to obtain in the LBW joint under fatigue load due to high large microstructure gradient, which promotes crack initiation in the LBW welded joint.
Keywords
Pulsed Nd:YAG laser , Ti6Al4V titanium alloy , Fatigue Damage , Microstructure gradient
Journal title
ENGINEERING FRACTURE MECHANICS
Serial Year
2014
Journal title
ENGINEERING FRACTURE MECHANICS
Record number
2344227
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