18.97.9.169
18.97.9.169
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SCIE SCOPUS
Ni3Al 금속간 화합물의 압연변형 및 우선방위에 관한 연구
A Study on the Rolling Deformation and Preferred Orientations of Ni3Al Intermetallic compounds
홍대원(Dae Won Hong), 박영구(Young Ku Park)
UCI I410-ECN-0102-2008-580-001842387

The Purpose of this study is to investigate the rolling deformation and preferred orientation for Ni₃Al intermetallic compounds. The chemical compositions of the alloys used in this study are 75.7Ni-24Al-0.3B(Al alloy) and 78.8Ni-21Al-0.2B(A2 alloy). The preferred orientation has been characterized by plotting inverse pole figures and pole figures. The preferred orientations of Al alloy after cold rolling, are {110} $lt;111$gt; and {110} $lt;211$gt;, whereas A2 alloy has brass type orientation of {110} $lt;211$gt;. This alloy could be cold rolled soundly to 80% reduction without intermediate annealing. The microstructure of A2 alloy consists of the ordered γ´cells surrounded by disordered γ phases. Also dislocations were concentrated in the γ phase near the of γ´/γ interface. The improved workability of this alloy may be due to the γ phase located at Ni₃Al interface, which alleviates the grain boundary embrittlement.

[자료제공 : 네이버학술정보]
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