Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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The Influence of Temperature on Low Cycle Fatigue Behavior of Prior Cold Worked 316L Stainless Steel (I) - Monotonic and Cyclic Behavior -

냉간 가공된 316L 스테인리스강의 저주기 피로 거동에 미치는 온도의 영향 (I) - 인장 및 반복 거동 -

  • 홍성구 (한국과학기술원 기계공학과) ;
  • 윤삼손 (한국과학기술원 기계공학과) ;
  • 이순복 (한국과학기술원 기계공학과)
  • Published : 2004.04.01
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Abstract

Tensile and low cycle fatigue (LCF) tests on prior cold worked 316L stainless steel were carried out at various temperatures from room temperature to 650$^{\circ}C$. At all test temperatures, cold worked material showed the tendency of higher strength and lower ductility compared with those of solution treated material. The embrittlement of material occurred in the temperature region from 300$^{\circ}C$ to 600$^{\circ}C$ due to dynamic strain aging. Following initial cyclic hardening for a few cycles, cycling softening was observed to dominate until failure occurred during LCF deformation, and the cyclic softening behavior strongly depended on temperature and strain amplitude. Non-Masing behavior was observed at all test temperatures and hysteresis energy curve method was employed to describe the stress-strain hysteresis loops at half$.$life. The prediction shows a good agreement with the experimental results.

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References

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  1. Fatigue Life Analysis and Prediction of 316L Stainless Steel Under Low Cycle Fatigue Loading vol.40, pp.12, 2016, https://doi.org/10.3795/KSME-A.2016.40.12.1027