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MOLECULAR DYNAMICS SIMULATION ON TRANSFORMATION PSEUDOELASTICITY IN NiAI ALLOY |
LI Bin;ZHANG Xiumu; SHA Xianwei; LI Yiyi (Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015)Correspondent: LI Bin; Tel: (024)23843531-55362; Fax: (024)23891320 |
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Cite this article:
LI Bin;ZHANG Xiumu; SHA Xianwei; LI Yiyi (Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015)Correspondent: LI Bin; Tel: (024)23843531-55362; Fax: (024)23891320. MOLECULAR DYNAMICS SIMULATION ON TRANSFORMATION PSEUDOELASTICITY IN NiAI ALLOY. Acta Metall Sin, 1998, 34(9): 923-927.
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Abstract Molecular dynamics simulation was carried out to study transformation pseudoelasticity in NiAl alloy with a initial B2 structure, using EAM (embedded atom method) type interatomic potential for NiAl. The evolution of the RDFs and bonded atomic patterns indicate that martensitic transformation took place when external tensile force increased to a certain level.During the transformation, variants could integrate each other under the action of the external force, coherent twinning interfaces were formed between misoriented variants. A reverse process initiated at the coherent interfaces occurred when the external force was withdrawn. With the migration of martensite-austenite interfaces the stress induced martensites transformed back into austenite.
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Received: 18 September 1998
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1Daw M S, Baskes M I. Phys Rev Lett, 1983; 50: 1285 2Daw M S; Baskes M I. Phys Rev B, 1984; 29: 6443 3 Voter A F, Chen S P.Mater Res Soc Symp Proc, 1987; 82: 175 4 Nakanishi N. In: Perkins J ed., Shope Memory Effects in Alloys, The Metallurgical Society of AIME Proc,1975:147 5沙宪伟,张修睦,陈魁英,李依依金属学报,1996;32:685(Sha X W, Zhang X M, Chen K Y, Li Y Y Acta Metall Sin , 1996; 32: 685) 6沙宪伟,张修睦,李依依材料研究学报,1997;11 :280(Sha X W, Zhang X M, Li Y Y Chin J MaterRes; 1997; 11: 280) |
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