Deformation Behavior of TC4 Titanium Alloy Laser Welded Butt Joint Under Static Tensile Loading

Static load tension is the most widely used mechanical properties test. In this paper, the influence of the laser welded joint on the deformation behavior of the specimen was revealed by comparing the thermal effects of TC4 base metal and joint specimen during tensile test through infrared thermograph method. The results show that for the joint and base metal specimens with the same tensile strength, there are many differences in the thermal effect, such as the beginning time of the physical yield phenomenon and the corresponding stresses, the temperature distribution and evolution process. Copyright © 2019, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.