서지주요정보
Zircaloy-4 요드 유기 응력부식파괴 기구에 관한 연구 = A study on the mechanism of iodine-induced stress corrosion cracking of zricaloy-4
서명 / 저자 Zircaloy-4 요드 유기 응력부식파괴 기구에 관한 연구 = A study on the mechanism of iodine-induced stress corrosion cracking of zricaloy-4 / 주기남.
저자명 주기남 ; Choo, Kee-Nam
발행사항 [서울 : 한국과학기술원, 1986].
Online Access 원문보기 원문인쇄

소장정보

등록번호

4104058

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 8647

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

The mechanism of stress corrosion cracking(SCC) of Zircaloy-4 in iodine vapour has been studied by the constant elongation rate test method and U-bend test method. SCC tests were conducted in the iodine vapour with the concentration of 3 mg/ml at the temperatures between 300℃ and 350℃. In order to investigate the effects of stress states on the SCC behaviour, three kinds of specimens were machined from annealed Zircaloy-4 plates. In the uniaxial tension specimens and single edge notched(SEN) ones which are both under the plane stress conditions, SCC did not occur. However, SCC occurred in the specimens under the plane strain condition. As the elongation rate was lowered, the susceptibility to SCC was increased. SEM examination of the fracture surfaces showed that the stress corrosion cracks propagated with transgranular brittle fracture mode for annealed plane strain tensile specimens and U-bend specimens, and intergranular and transgranular mixed brittle fracture mode for re-annealed plane strain tensile specimen. The mechanism of iodine-induced Zircaloy SCC was discussed in terms of the effects of stress state, elongation rate and yield stress. The present experimental results well support the iodine-diffusion model, however, iodine-adsorption model can not be completely excluded.

서지기타정보

서지기타정보
청구기호 {MMS 8647
형태사항 [iii], 49 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Kee-Nam Choo
지도교수의 한글표기 : 변수일
공동교수의 한글표기 : 김흥
지도교수의 영문표기 : Su-Il Pyun
공동교수의 영문표기 : Heung Kim
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 24-28
주제 Stress corrosion.
Fractures.
Strains and stresses.
응력 부식. --과학기술용어시소러스
파괴. --과학기술용어시소러스
연신율. --과학기술용어시소러스
Zircaloy-4.
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