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Analysis of Ni75−3x/4Al25−x/4Crx Grain Boundary Structures with a Double Species Model

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Published under licence by IOP Publishing Ltd
, , Citation Zheng Li-Ping et al 2005 Chinese Phys. Lett. 22 1484 DOI 10.1088/0256-307X/22/6/052

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1 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, PO Box 800-204, Shanghai 201800

2 International Centre for Material Physics, Chinese Academy of Sciences, Shenyang 110016

3 Shenyang National Laboratory for Materials Sciences, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016

Dates

  1. Received 26 December 2004
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0256-307X/22/6/1484

Abstract

Based on the Monte Carlo simulation conjoined with the embedded atom method (EAM) potentials, a double species model is employed to study the Ni75−3x/4Al25−x/4Crx (x<3) structure, i.e. impure Ni3Al together with a grain boundary structure at the equilibrium. At the grain boundary, the model shows that Ll2-Ni3Al transforms into fcc-Ni when x increases from 0 to 0.40; then fcc-Ni transforms into Ll2-Ni3Cr when x increases from 0.40 to 2.40.

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10.1088/0256-307X/22/6/052