서지주요정보
인장속도의 변화를 통한 강의수소취성기구에 관한 연구 = Investigation of the hydrogen embrittlement mechanism by means of variation of the strain rate
서명 / 저자 인장속도의 변화를 통한 강의수소취성기구에 관한 연구 = Investigation of the hydrogen embrittlement mechanism by means of variation of the strain rate / 김윤기.
저자명 김윤기 ; Kim, Yoon-Gi
발행사항 [서울 : 한국과학기술원, 1976].
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소장정보

등록번호

4000174

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 7605

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Using the SM5OB(JIS) steel specimen cathodically charged with hydrogen, investigation of the mechanism of reversible hydrogen embrittlement of steel was carried out. To see the influence of defects on reduction of area, the steel was coldworked for four different amounts to give different concentration of defects and also to observe the effect of strain rate on reduction of area, tension tests were made at cross head speeds of 0.05 cm/min and 5cm/min at room temperature. The experimental results show that the larger amounts of cold work and the slower the cross head speed, the higher is the degree of hydrogen embrittlement. These results agree well with the modified pressure theory that has been proposed by Tetelman to explain the mechanism of hydrogen embrittlement. To explain the low temperature anomalies in the hydrogen occulsive behavior of α-iron, Weiser proposed recently that the stable state of the absorbed hydrogen changed from atomic at high temperature to molecular as the temperature was lowered below critical value(about 200℃). Assuming that this theory is correct, it is most probable that the modified pressure theory is suitable for explanation of the mechanism of the hydrogen embrittlement of steel for this experimental results.

서지기타정보

서지기타정보
청구기호 {MMS 7605
형태사항 [iii], 60 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Yoon-Gi Kim
지도교수의 한글표기 : 남수우
지도교수의 영문표기 : Soo-Woo Nam
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 57-60
주제 Metals --Hydrogen embrittlement.
Steel.
Metals --Mechanical properties.
수소 취성. --과학기술용어시소러스
강. --과학기술용어시소러스
기계적 성질. --과학기술용어시소러스
Strain rate.
변형 속도.
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