18.97.14.88
18.97.14.88
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SCIE SCOPUS
TiAl 금속간화합물의 V 첨가와 열처리에 따른 기계적 성질의 향상
Improvement of Mechanical Properties of TiAl - Base intermetallic Compound by V Addition and heat Treatment
정인상(In Sang Chung), 최종욱(Jong Wook Choi)
UCI I410-ECN-0102-2008-580-001845060

In this study, three alloys with nominal compositions(at%) of Ti48Al, TiAl-1V, TiAl-2V were prepared by plasma are melting and quenched from α₂+γ, α+γ and α phase regions, respectively. V additions to TiAl enhanced the plasticity of the alloy, and maximum plasticity in a compressive test occurred in the TiAl-2V alloy quenched from α+γ phase regions. This is the reason that V additions to TiAl tend to refine grain size and increase twinning deformation. The peak stress of the alloys shows the same tendency as the strain. Vickers hardness of the alloys heat treated in the α phase region is, however, higher than the one in the α₂+γ, α+γ phase regions, and the reason is that α₂phase of the alloys heat treated in the α phase region is more than the one in the other regions. Therefore maximum hardness occurs at the TiAl-1V alloy heat treated in the α phase region.

[자료제공 : 네이버학술정보]
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