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- Title
Ultrasonic Evaluation of Effect of Temperature of Quenching Water on Residual Stress of Aluminum Alloy.
- Authors
WANG Xiao; LI Guo; WANG Liang; LIANG Jing; SHI Yiwei
- Abstract
Profile of velocity and amptitude of bottom reflection of ultrasonic propagated along three directions of 7050 pre-stretched aluminum alloy and that was quenched in water WITH temperature from 40 U to 70 U and then cold compressed and aged was drawn. Results show that velocity profiles of ultrasonic propagated along three directions were related to residual stress field in specimen. Velocity profiles of ultrasonic propagated along thickness direction was unaffected by microstructure. The velocity profile was available for analysis of residual stress field in specimen. Velocity profiles of ultrasonic propagated along rolling and broading direction were affected by microstructure and residual stress together. Degree of crook of contour of velocity was useful for analysis of residual stress as well. When temperature of quenching water increases > homogenity of velocity profile increases and range of velocity decreases. This is fitting for regularly of thermal residual stress. Feature of velocity profile of the specimen quenched in water with temperature of 50 U may shows is particularity of quenching. The feasibility of integral residual stress evaluated by ultrasonic was proved by the experimental results preliminarily.
- Publication
Nonferrous Metals Engineering, 2021, Vol 11, Issue 12, p1
- ISSN
2095-1744
- Publication type
Article
- DOI
10.3969/j.issn.2095-1744.2021.12.001