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INTERNAL FRICTION OF GRAIN BOUNDARIES IN Fe-P AND Fe-P-La ALLOYS CONTAINING TRACE COPPER |
JI Jingwen;WEI Quanjin;GENG Dianqi;WU Yuqin Northeast University of Technology; Shenyang professor;Department of Physics;Northeast University of Technology; Shenyang 110006 |
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Cite this article:
JI Jingwen;WEI Quanjin;GENG Dianqi;WU Yuqin Northeast University of Technology; Shenyang professor;Department of Physics;Northeast University of Technology; Shenyang 110006. INTERNAL FRICTION OF GRAIN BOUNDARIES IN Fe-P AND Fe-P-La ALLOYS CONTAINING TRACE COPPER. Acta Metall Sin, 1990, 26(1): 14-19.
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Abstract The grain boundary internal friction in Fe-P and Fe-P-La alloys con-taining a little Cu has been studied. The internal friction is obviously reduced byLa added even 0.584-0.722 wt-%. The grain boundary peak migrates toward thehigh temperature and a small internal friction peak occurs. The grain boundaryinternal friction seems to be interpreted by movement, under stress, of both thedefects of atomic size, namely point defects, in grain boundaries and their clusters.
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Received: 18 January 1990
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1 #12 2 戢景文,赵增祺,贺礼端,耿殿奇.物理学报,1985;34:1620 3 杨植玑,刘沃恒.钢铁,1986;21:6,36 4 Ke TS (葛庭燧). Trans Jpn Inst Met, 1986; 27(Suppl.): 679 5 #12 6 Hahn W, Gleiter H. Acta Metall, 1981; 29: 601 7 Williams T M, Leak G M. Acta Metall, 1967; 15: 1111 8 Wuerschum R, Scheytt M, Schaefer H-E. Phys Status Solidi, (a), 1987; 102: 119 9 Damask A C, Dienes G J. Point Defects in Metals, New York: Gordon and Breach, 1963 |
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