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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.1
- 수록면
- 989 - 997 (9page)
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초록· 키워드
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Stress corrosion cracking behavior of a copper pipe and its mechanism were investigated in a heating water supply systemusing both metallurgical and mechanical analyses. The X-ray diffraction and energy dispersive spectroscopy measurementsshowed that uniform cupric oxide and cuprous oxide were formed during service on the inside surface of the pipe, whilemalachite and cupric oxide were the main corrosion products on the outer surface of the pipe. Many corrosion pits wereobserved around the cracking areas on the outer surface by optical microscopy. Finite element modeling highlighted a regionwith large hoop stresses mainly brought about by the bolt load, where it became susceptible to stress corrosion cracking(SCC). The morphology of the fracture surface revealed an intergranular mode towards the outer surface but a mixed interandtrans-granular mode near the inner surface. Based on the obtained results, a phenomenological 4-stage fracture processis proposed to describe the failure process of the copper pipe, in which the SCC initiated from the corrosion pits on the outersurface, propagated along the axial direction and penetrated towards the inner surface until final fracture.
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등록된 정보가 없습니다.
참고문헌 (30)
참고문헌 신청
J.R. Davis / 2001 / ASM Specialty Handbook: Copper and Copper Alloys / ASM International
R. Francis / 2010 / The Corrosion of Copper and Its Alloys: A Practical Guide for Engineers / NACE International, The Corrosion Society
Copper Development Association Inc / 2016 / Copper Tube Handbook:Industry Standard Guide for the Design and Installation of Copper Piping Systems / Copper Development Association Inc
V. F. Lucey / 1967 / Br. Corros. J 2:175
G. S. Frankel / 1998 / J. Electrochem. Soc 145:2186
R. Francis / 2010 / The Corrosion of Copper and Its Alloys: A Practical Guide for Engineers / NACE International, The Corrosion Society
Copper Development Association Inc / 2016 / Copper Tube Handbook:Industry Standard Guide for the Design and Installation of Copper Piping Systems / Copper Development Association Inc
V. F. Lucey / 1967 / Br. Corros. J 2:175
G. S. Frankel / 1998 / J. Electrochem. Soc 145:2186
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