서지주요정보
DCB시편을 이용한 상용 Al-Zn-Mg 합금 (AA-7039)의 응력부식파괴 거동에 대한 속도론적 연구 = Study on the kinetics of stress-corrosion cracking (SCC) behaviour of commercial Al-Zn-Mg alloy(AA-7039) using a double cantilever beam(DCB) specimen
서명 / 저자 DCB시편을 이용한 상용 Al-Zn-Mg 합금 (AA-7039)의 응력부식파괴 거동에 대한 속도론적 연구 = Study on the kinetics of stress-corrosion cracking (SCC) behaviour of commercial Al-Zn-Mg alloy(AA-7039) using a double cantilever beam(DCB) specimen / 홍문희.
저자명 홍문희 ; Hong, Moon-Hee
발행사항 [서울 : 한국과학기술원, 1987].
Online Access 원문보기 원문인쇄

소장정보

등록번호

4104415

소장위치/청구기호

학술문화관(문화관) 보존서고

MMS 8735

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Kinetics of Stress-Corrosion (SC) crack propagation behaviour of commercial Al-Zn-Mg alloy has been studied as a function of temperature and $Cl^-$ concentration in distilled water using a DCB specimen. Stress-Corrosion Cracking (SCC) tests were carried out over a range of temperature from 298 to 328 K and over a range of $Cl^-$ concentration 0 to 0.6 M. Stress-Corrosion crack propagation rate with stress intensity factor (K) was measured. Intergranular brittle fracture mode was observed, irrespective of temperature and $Cl^-$ concentration. Activation energy for the SCC process in region I was found to be 97-99 KJ/mole in 2.0 wt.% NaCl and 3.5 wt.% NaCl solution, and in region II 32 KJ/mole in distilled water and 54 KJ/mole in NaCl solution. The role of $Cl^-$ ion enhanced SC crack propagation rate due to the formation of $AlCl_3$ in crack tip. Rate controlling step for SC crack propagation process was thought to be Al dissolution reaction or hydrogen transport in material in region I and to be diffusion of $Al^{+3}$ from crack tip to bulk solution in distilled water and hydrogen adsorption reaction in NaCl solution in region II.

서지기타정보

서지기타정보
청구기호 {MMS 8735
형태사항 iii, 61 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Moon-Hee Hong
지도교수의 한글표기 : 변수일
지도교수의 영문표기 : Su-Il Pyun
학위논문 학위논문(석사) - 한국과학기술원 : 재료공학과,
서지주기 참고문헌 : p. 35-40
주제 Dynamics.
Stress corrosion.
Hydrogen.
속도론. --과학기술용어시소러스
응력 부식. --과학기술용어시소러스
수소 이동. --과학기술용어시소러스
알루미늄 합금. --과학기술용어시소러스
Ionic conduction.
QR CODE qr code