December 2007
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1 Citation
Based on the optimum parameters obtained from prevenient experiments, the linear friction welding (LFW) experiment of TC4 titanium alloy was carried out with homemade XMH-160 LFW machine. It was found that all the impact test specimens cracked along the parent metal of TC4 alloy after impact test. The macroscopic and microscopic characteristics of impact fractures were observed, and the structure features of the joints were analyzed. The results show that the superfine structure of weld contributes to the higher notched bar impact strength of joint than that of the parent metal.