Mechanical Behavior of Alloy by Vibration ARC Welding

by Weite Wu

Publisher - Chung Hsing University, Taichung, Taiwan

Category - General Novel

To evaluate mechanical properties after stress relief, alloy 690 was welded while subjected to synchronous mechanical vibration. In the vibrated specimen, the weld metal was seen to have fine microstructures, and low residual stress levels were measured in specimens subjected to vibration. Thus, it is believed that the mechanical properties of this vibrated weldment are improved. However, the hardness, strength, and ductility of the weld were compromised when vibration was applied. It was found that cyclic stress plays a role in relieving residual stress, in reducing hardness, and in worsening the mechanical properties.

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