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《Acta Metallurgica Sinica》 2006-02
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SLIDING WEAR PROPERTIES OF LASER MELT DEPOSITED Cr_(13)Ni_5Si_2/γ-Ni BASE ALLOY

FANG Yanli, WANG Huaming Laboratory of Laser Materials Processing and Manufacturing, School of Materials Science and Engineering, Beihang University, Beijing 100083  
A wear resistant alloy consisting of Cr_(13) Ni_5Si_2 ternary silicide dendrites and the interdendritic nickel base solid solution (γ) was designed and fabricated by the laser melting/continuous deposition process.Wear resistance of the Cr_(13) Ni_5Si_2/γ alloy was evaluated on an MM-200 blockon-wheel dry sliding wear tester at room temperature.Results indicate that the Cr_(13) Ni_5Si_2/γ alloy has excellent wear resistance and extremely low load-sensitivity of wear under dry sliding wear test conditions due to the good toughness, strength and the transferred cover-layer on the worn surface of the alloy.
【Fund】: 国家自然科学基金项目50331010和50471006 教育部跨世纪优秀人才计划基金 航空基础科学基金项目05H51009资助~~
【CateGory Index】: TG174.4
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