Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)
- 2003.10a
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- Pages.127-132
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- 2003
Mechanical Properties and Ultrasonic Characteristic of SS400 and STS304 by Simulated Heats
열재현에 의한 SS300 및 STS304의 기계적 성질 및 초음파 특성
- Jeong, Jeong-Hwan (Graduate School of Materials Science and Engineering, Pukyong National University) ;
- Ahn, Seok-Hwan (School of Mechanical Engineering, Pukyong National University) ;
- Park, In-Duck (Division of Materials Science and Engineering, Pukyong National University) ;
- Nam, Ki-Woo (Division of Materials Science and Engineering, Pukyong National University)
- Published : 2003.10.24
Abstract
In a today industry, the welding is doing a many portion in structure manufacture. This study is simulated heat of heat-effected zone and researched a mechanical properties and ultrasonic characteristic in used the SS400 and the STS304. As the result mechanical properties of steel that become drawing decreased because of remaining stress by strain gardening according as simulated heat temperature rises, but according as temperature rises in material that do simulated heat after have done annealing, mechanical propensity was improved. The velocity and attenuation become different by effect of remaining stress than effect of material internal microstructure in ultrasonic wave test. In the case of STS304, there was change in mechanical properties by effect that is by strain hardening, but there was no change in material that simulated heat after annealing. When become drawing in ultrasonic waves test, according as simulated heat temperatures rise, change of attenuation coefficient is looked, but material that simulated heat after annealing was no change almost both the volocity and attenuation.
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