한국복합재료학회:학술대회논문집 (Proceedings of the Korean Society For Composite Materials Conference)
- 한국복합재료학회 2002년도 추계학술발표대회 논문집
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- Pages.127-130
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- 2002
TiNi/6061Al 지적 복합재료의 미세조직에 미치는 냉간압연의 영향.
Effect of cold rolling on the microstructures of TiNi/6061Al smart composites.
초록
The 2.5 vol% TiNi/6061Al composites were fabricated by permanent mold casting, and its microstructures and tensile test for the cold rolled composites with maximum 50% reduction ratio were investigated. In the case of TiNi fiber with 2mm interval in preform, the interface bonding of fabricated composites were good. EPMA analysis results were found the small amount of Mg, Si segregated interface of diffusion layer. Transverse section of TiNi fiber was decreased with increasing reduction ratio and 40% reduction ratio was observed microcrack from TiNi fiber. And the tensile strength of composites at 38% reduction ratio was 194MPa. In the case of over 38% reduction ratio, the decrease of the tensile strength was due to TiNi fiber rupture by excess working. The fracture mode was appeared brittle fracture with increasing reduction ratio
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