대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)
- 대한기계학회 2000년도 춘계학술대회논문집A
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- Pages.73-78
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- 2000
수퍼 2상 스테인리스강의 피로균열 진전특성과 음향방출신호의 시간-주파수 해석
Fatigue Crack Propagation of Super Duplex Stainless Steel and Time-Frequency Analysis of Acoustic Emission
- 발행 : 2000.04.20
초록
On this study, the fatigue crack propagation of super duplex stainless steel is investigated in conditions of various volume fraction of austenite phase by changing heat treatment temperature. And we analysed acoustic emission signals during the fatigue test by time-frequency analysis methods. As the temperature of heat treatment increased, volume fraction of austenite decreased and coarse grain was obtained. The specimen heat treated at
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