화학공학소재연구정보센터
학회 한국재료학회
학술대회 2006년 봄 (05/19 ~ 05/20, 경상대학교 )
권호 12권 1호
발표분야 구조재료
제목 Microstructure and mechanical properties of Inconel 617 after degradation.
초록 ABSTRACT : Short-term high temperature degradation test was conducted on Inconel 617, a candidate tube material for high temperature gas-cooled reactors (HTGR), to evaluate the variation of microstructure and mechanical property in air at 1050oC during 1000h. The dominant oxide layer was Cr-oxide and a very shallow Cr-depleted region was observed below the oxide layer. At the beginning of degradation, the island shape M23C6 and M6C precipitate were observed in matrix region. After 1000h degradation, precipitate shape was changed to the chain shape and increased amount of precipitate. These results influenced mechanical property of the specimen which exposed in high temperature. Yield strength was decreased after 1000h exposure.
저자 조태선1, 김길수1, 김성민1, 류우석2, 김영도1
소속 1한양대, 2원자력(연)
키워드 Inconel 617; degradation; high temperature compression test
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