Nb-Si-B계에서 Nb+T2 공존 영역의 미세조직 특성
- Title
- Nb-Si-B계에서 Nb+T2 공존 영역의 미세조직 특성
- Other Titles
- Microstructure of the Nb-Si-B Alloys in the Nb+T2 Region
- Author
- 김영도
- Keywords
- intermetallics; solidification; microstructure; hardness test; T2 phase
- Issue Date
- 2015-01
- Publisher
- 대한금속.재료학회
- Citation
- 대한금속.재료학회지, v. 53, NO 1, Page. 43-50
- Abstract
- Intermetallic-based materials are interesting for high temperature structural applications becauseof their good mechanical properties and enhanced oxidation resistance. In this study microstructuralexamination of the Nb-Si-B alloys at Nb-rich compositions was performed. The Nb-rich corner of the Nb-Si-Bsystem is very attractive because the constituent phases are Nb (a ductile and tough phase with a high meltingtemperature) and T2 (a very hard intermetallic compound with favorable oxidation resistance), which makea good combination for high temperature structural materials. At compositions lower than 82 at%Nb themicrostructure shows the T2 primary phase and eutectic (T2+Nb), while the Nb primary phase and eutecticwere formed at higher compositions. Hardness tests (Rockwell A-scale and micro Vickers) were carried outto estimate the optimal composition for good mechanical properties.
- URI
- http://kiss.kstudy.com/journal/thesis_name.asp?tname=kiss2002&key=3283806http://hdl.handle.net/20.500.11754/21170
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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