Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Sudy on the Ceep Mchanism of 316 Sainless Seel under Hgh Sresses

고응력 상태에 있는 316스테인레스강의 CREEP 성형 기구에 관한 연구

  • Baek, Nam-Ju (Dept.of Mechanical Engineering, Busan National University) ;
  • Han, Kyu-Taek (Dept.of Mechanical Engineering, Graduate School of Busan National University)
  • 백남주 (부산대학교 공과대학 생산기계과) ;
  • 한규택 (부산대학교 대학원 기계공학과)
  • Published : 1985.01.01
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Abstract

This study is concerned with creep mechanism of SUS 316 under high stresses. Creep tests were conducted at temperatures between $480^{\circ} and $820^{\circ}C and stresses between 7.6 and 24.6$kg/mm^2$. To investigate the mechanism of the steady-state creep under high stresses, work hardening coefficient and activation energy are obtained. The activation energy was calculated by means of the temperature differential test together with the method of correlating the creep rates against the inverse of the absolute temperature for different stresses and strains. From the experimental results and their analyzed facts, it is concluded that the steady-state creep behavior of SUS 316 under high stresses is controlled by dislocation glide mechanism.

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