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《Journal of Shanghai Jiaotong University》 2002-01
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Antiferromagnetic Distortion and Formation of High Damping Twins in γMn-Based Alloys

DENG Hua ming 1, CHUNG C.Y. 2, ZHANG Ji hua 1, CHEN Shu chuan 1 (1. School of Materials Science and Eng., Shanghai Jiaotong Univ., Shanghai 200030, China; 2. Dept. of Phys. and Materials Sci., City Univ. of Hong Kong)  
The lattice distortion caused by paramagnetic→antiferromagnetic transition in γ Mn Cu alloy was evaluated according to the relationship between the lattice distortion and the magnetic long range order parameter. The calculation and experimental results are compared. It is revealed that the correlation between the antiferromagnetic ordering and high damping twins also exists in other γ Mn based alloys. The high damping capacity of γ Mn Fe alloy is experimental confirmed. The tetragonal distortion caused by paramagnetic→antiferromagnetic transition both in γ Mn Cu and γ Mn Fe alloys can trigger the formation of micro twins, it can also introduce martensitic transformation on some conditions. The physical nature of the high damping capacity of γ Mn based alloys was discussed.
【CateGory Index】: TG135
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Chinese Journal Full-text Database 3 Hits
1 LU Ping,ZHANG Jihua,XU Zuyao(T.Y.Hsu)(School of Materials Science and Eng., Shanghai Jiaotong Univ., Shanghai 200030, China);An Investigation of Antiferromagnetic Transition and fccffct Martensitic Transformation in γ-MnFe Based Alloys[J];Journal of Shanghai Jiaotong University;2003-10
2 GU Su-yi,ZHANG Ji-hua(School of Materials Science and Eng.,Shanghai Jiaotong Univ.,Shanghai 200030,China);Antiferromagnetic Transition and Mrtensitic Transformation of γ-Mn-Fe Alloys[J];Journal of Shanghai Jiaotong University;2006-10
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【Secondary References】
Chinese Journal Full-text Database 2 Hits
1 LUO Shu-dong1,LI Zu-de2,ZHAO Mu-yue1,YI Jian-hong1(1.State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China;2.Beijing Research Institute of Powder Metallurgy,Beijing 100078,China);Applications of manganese in powder metallurgy materials[J];Materials Science and Engineering of Powder Metallurgy;2007-06
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