MATEC Web Conf.
Volume 269, 2019IIW 2018 - International Conference on Advanced Welding and Smart Fabrication Technologies
|Number of page(s)||6|
|Section||Advanced Welding Processes|
|Published online||22 February 2019|
Pattern and Direction of Microstrain in Q&T Steel Weld Joint
Brawijaya University, Mechanical Engineering Department, Malang 65145, East Jawa, Indonesia
2 Diponegoro University, Mechanical Engineering Department, Semarang 50275, Central of Java, Indonesia
Corresponding author: email@example.com
The welded joint always contains the microstrain when welding is complete. The microstrain generates distortion and changes of the physical shape of the weld joint. The purpose of the study was to observe the pattern and direction of residual stress before and after welding Q900&T125 and Q900&T175 Steel. The materials used for this study is Hot Rolled Plate Steel made by Indonesia steel industry. Method of this study is 1. Q900&T125 and Q900&T125 Steel machined in V-butt joint. This joints weld by using manual gas metal arc welding, Q900&T125 and Q900&T125 Steel weld joint can be found. 2. Measuring the distance from the lattice planes before and after welding by using Neutron-Ray Diffraction. Then the microstrain can be found. By involving Poisson numbers and modulus of elasticity of material in microstrain obtained residual stress. All the pattern of microstrain is compressive stress and leads to the weld center.
© The Authors, published by EDP Sciences, 2019
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