Life Prediction and AE Evaluation of Pure or Cyclic Creep for Power Plant Materials ; Pure Creep and AE Evaluation

J. Ocean Eng. Technol. 1998;12(1):76-84.

전력용 강재의 정적.동적 크리프의 상관성과 예측 및 AE평가(1); 정적 크리프와 AE평가

오세규,장홍근,송정근

부경대학교 공대 기계.자동차공학부,한국기계연구원,부경대학교 대학원

Keywords: Creep Properties, Creep Stress, Rupture Time, Initial Strain, Acoustic Emission

핵심용어: 크리프특성, 크리프응력, 파단시간, 초기연산물, 음향방출

Abstract

In this 1st report, the relationship between pure creep properties and initial strain was studied and also its acoustic emission test was performed during creep test at 500, 600 and $700^{circ}C$. And the applicability of the acoustic emission technique was investigated to analyze the quantitive relationship between all the pure properties (creep strength, creep repture time or creep life, steady state creep rate, total creep rate, creep strain, total creep strain, etc.) and the initial strains as well as to analyze AE properties during the pure creep loading condition.