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Microstructure and Wear Resistance of a Cr-Cu-Si Metal Silicide Alloy
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TB383

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    Abstract:

    A wear resistant Cr-Cu-Si metal silicide alloy having a microstructure consisting of the primary dual-phase dendrite with a Cr5Si3 core encapsulated by CrSi phase and the interdendritic ductile Cu-based solid solution was fabricated by the laser melting process. Microstructure of the Cr-Cu-Si metal silicide alloy was characterized by OM, SEM, XRD and EDS. Microhardness was measured using a MH-6 semi-automatic Vickers micro-hardness tester. Because the wear-resistant metal silicide CrsSi3 and CrSi have high hardness, strong covalent-dominated atomic bonds, and the ductile Cu-based solid solution has excellent thermal conductivity, low coefficient of friction and excellent ductility, the Cr-Cu-Si metal silicide alloy has excellent wear resistance under room temperature dry sliding wear test conditions.

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[Yin Yanxi, Li An, Zhang Lingyun, Wang Huaming. Microstructure and Wear Resistance of a Cr-Cu-Si Metal Silicide Alloy[J]. Rare Metal Materials and Engineering,2006,35(3):391~394.]
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  • Received:December 02,2004
  • Revised:April 05,2005
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