지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 454 - 460 (7page)
이용수
초록· 키워드
오류제보하기
Acoustic emission (AE) is one of the promising methods for detecting the formation ofstress corrosion cracks (SCCs) in laboratory tests. This method has the advantage of onlineinspection. Some studies have been conducted to investigate the characteristics of AEparameters during SCC propagation. However, it is difficult to classify the distinct featuresof SCC behavior. Because the previous studies were performed on slow strain rate test orcompact tension specimens, it is difficult to make certain correlations between AE signalsand actual SCC behavior in real tube-type specimens. In this study, the specimen was aAISI 304 stainless steel tube widely applied in the nuclear industry, and an accelerated testwas conducted at high temperature and pressure with a corrosive environmental condition.
The study result indicated that intense AE signals were mainly detected in the elasticdeformation region, and a good correlation was observed between AE activity and crackgrowth. By contrast, the behavior of accumulated counts was divided into four regions.
According to the waveform analysis, a specific waveform pattern was observed during SCCdevelopment. It is suggested that AE can be used to detect and monitor SCC initiation andpropagation in actual tubes.
목차
등록된 정보가 없습니다.
참고문헌 (18)
참고문헌 신청
A.J. Russell / 1979 / A fracture mechanics study of stress corrosion cracking of type-316 austenitic steel / Metall. Trans. A 10 : 1229 ~ 1238
G. Du / 2011 / Detection and characterization of stress-corrosion cracking on 304 stainless steel by electrochemical noise and acoustic emission techniques / Corros. Sci 53
H. Chang / 2005 / Acoustic emission study of corrosion fatigue crack propagation mechanism for LY12CZ and 7075-T6 aluminum alloys / J. Mater. Sci 40 : 5669 ~ 5674
H. Leinonen / 2011 / H€anninen, Stress corrosion crackingdcrevice interaction in austenitic stainless steels characterized by acoustic emission / Metall. Mater. Trans. A 42
H. Mazille / 1995 / An acoustic emission technique for monitoring pitting corrosion of austenitic stainless steels / Corros. Sci 37 : 1365 ~ 1375
G. Du / 2011 / Detection and characterization of stress-corrosion cracking on 304 stainless steel by electrochemical noise and acoustic emission techniques / Corros. Sci 53
H. Chang / 2005 / Acoustic emission study of corrosion fatigue crack propagation mechanism for LY12CZ and 7075-T6 aluminum alloys / J. Mater. Sci 40 : 5669 ~ 5674
H. Leinonen / 2011 / H€anninen, Stress corrosion crackingdcrevice interaction in austenitic stainless steels characterized by acoustic emission / Metall. Mater. Trans. A 42
H. Mazille / 1995 / An acoustic emission technique for monitoring pitting corrosion of austenitic stainless steels / Corros. Sci 37 : 1365 ~ 1375
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