대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)
- 대한기계학회 2001년도 추계학술대회논문집A
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- Pages.222-227
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- 2001
초음파 비선형성을 이용한 2.25Cr-1Mo 강의 열화도 평가
Evaluation of Degradation of 2.25Cr-1Mo Materials using the Nonlinear Acoustic Effect
- 발행 : 2001.11.01
초록
Nonlinear acoustic effect has been considered as an effective tool for the evaluation of material degradation. In this paper, the applicability of nonlinear acoustic effect to the evaluation of degradation of 2.25Cr-1Mo steel is investigated. Firstly, a number of 2.25Cr-1Mo steel samples were heat-treated, and their damage mechanism was examined. Secondly, Ultrasonic nonlinear parameter was measured. Nonlinear acoustic parameter was found to be clearly sensitive to the material degradation.
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