서지주요정보
니켈기지 합금의 응력부식균열시 음향방출신호의 특성 = Characteristics of acoustic emission during stress corrosion cracking of nickel base alloy
서명 / 저자 니켈기지 합금의 응력부식균열시 음향방출신호의 특성 = Characteristics of acoustic emission during stress corrosion cracking of nickel base alloy / 성게용.
저자명 성게용 ; Sung, Key-Yong
발행사항 [대전 : 한국과학기술원, 1997].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8007183

소장위치/청구기호

학술문화관(문화관) 보존서고

DNE 97003

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

The acoustic emission(AE) method has been utilized to study the detectability of crack initiation and growth during intergranular stress corrosion cracking(IGSCC) of Inconel 600 alloy and to evaluate its applicability as a non-destructive testing method by comparing the crack behavior with AE parameters and measuring the minimum detectable crack size. Variously heat-treated specimens were tensioned by use of a constant extension rate tester at various extension rates to yield different stress corrosion cracking behaviors of Inconel specimens. Significant AE responses were observed during IGSCC, ductile fracture and plastic deformation. The magnitude of AE peak amplitudes was in the decreasing order for IGSCC, ductile fracture and plastic deformation. AE also was effective means to identify the transition from small crack initiation and growth to dominant crack growth. Close correlation was found to exist between AE behaviors and electrochemical current changes, suggesting that the formation and breakdown of passive film is involved in IGSCC of Inconel 600. The minimum crack size detectable with AE was approximately 200 to 400㎛ in length and below 100㎛ in depth, indicating the possibility of detecting small IGSC cracks prior to the growth of single dominant cracks.

서지기타정보

서지기타정보
청구기호 {DNE 97003
형태사항 viii, 101 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Key-Yong Sung
지도교수의 한글표기 : 김인섭
지도교수의 한글표기 : 윤용구
지도교수의 영문표기 : In-Sup Kim
지도교수의 영문표기 : Young-Ku Yoon
수록잡지명 : "Characteristics of Acoustic Emission during Stress Corrosion Cracking of Inconel 600 Alloy". Scripta Materialia, Accepted
학위논문 학위논문(박사) - 한국과학기술원 : 원자력공학과,
서지주기 참고문헌 : p. 90-94
주제 음향방출
응력부식균열
인코넬 600
Acoustic emission
Stress corrosion cracking
Inconel 600
AE
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