dc.citation.endPage |
89 |
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dc.citation.number |
1 |
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dc.citation.startPage |
82 |
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dc.citation.title |
한국압력기기공학회 논문집 |
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dc.citation.volume |
10 |
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dc.contributor.author |
최경준 |
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dc.contributor.author |
유승창 |
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dc.contributor.author |
김지현 |
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dc.date.accessioned |
2023-12-22T02:36:39Z |
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dc.date.available |
2023-12-22T02:36:39Z |
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dc.date.created |
2015-07-03 |
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dc.date.issued |
2014-07 |
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dc.description.abstract |
In this study, the metallurgical analysis and mechanical property measurement have been performed to investigate the effect of long-term thermal aging on the microstructural evolution in the fusion boundary region between weld metal and low alloy steel in dissimilar metal welds. A representative dissimilar weld mock-up made of Alloy 690-Alloy 152-A533 Gr. B was fabricated and aged at 450℃ for 2,750 hours. The microstructural characterization was conducted mainly near in a weld root region by using optical microscopy, scanning electron microscopy, transmission electron microscopy. And the mechanical properties were measured with Vickers microhardness test and nanoindentation method. A steep gradient was shown in the chemical composition profile across the interface between A533 Gr. B and Alloy 152. Type-II boundaries were found in weld side of DMW and the hardness was the highest at the narrow zone between Type-II boundary and fusion boundary. |
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dc.identifier.bibliographicCitation |
한국압력기기공학회 논문집, v.10, no.1, pp.82 - 89 |
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dc.identifier.issn |
1738-8333 |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/11864 |
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dc.identifier.url |
http://scholar.ndsl.kr/schDetail.do?cn=JAKO201404641500213 |
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dc.language |
한국어 |
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dc.publisher |
한국압력기기공학회 |
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dc.title.alternative |
A study on the change of microstructural and mechanical properties by the long-term thermal aging of dissimilar metal welds in nuclear power plants |
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dc.title |
원전 이종금속 용접부의 장기 열적 시효에 따른 미세조직 및 기계적 특성변화에 관한 고찰 |
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dc.type |
Article |
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dc.description.isOpenAccess |
FALSE |
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dc.description.journalRegisteredClass |
domestic |
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