Simulation of V Atom Substitution Character in Ni-Al-V Alloy

Abstract:

Simulations are performed on atom substitution character in Ni-Al-V alloy based on microscopic phase-field model at 1046K. It was showed that the ordering of both Al and V atoms take place simultaneously during the precipitation process of Ni-Al-V alloy, V atoms substitute the Al sublattice in L1₂ phases, and they prefer β-sites to α-sites. Both of Al and V occupy the β-sites and complex phases Ni₃(Al_1-xV_x)are formed; V atoms substitute the Al sublattice, the D0₂₂ phases are formed at the boundary of L1₂ phases.

• Periodical: Applied Mechanics and Materials (Volumes 117-119)
• Pages: 1280-1283
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.117-119.1280
• Online since: October 2011
• Authors: Xiang Yi Dong, Shu Fen Xiao, Zhong Chu
• Keywords: Microscope Phase-Field Model, Precipitation, Simulation, Substitution

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