MICROHARDNESS DISTRIBUTION AT INTERFACE OF(N~++IP)-TiN COMPOSITE COATINGS ON STEEL

Abstract

Abstract: The composite coating of(N~++IP)-TiN was prepared by ion-plated TiN film onto ion-nitrided case on the low carbon steel substrate.The microhardness measurement along in- terface between IP-TiN coating and substrate was detected as a moderate decrease in magni- tude with increase of distance from the coating surface.This seems due to the occurrence of ion nitride case,ε-Fe_3N-Fe_2N and Fe_4N phases,along the interface.

Key words: microhardness, composite coating, interface, ion-plating, ion

JIN Zhujing YU Li YU Zhiming DAI Shaoxia XU Jiayin Institute of Corrosion and Protection of Metals,Academia Sinica,Corrosion Science Laboratory Academia Sinica,Shenyang,China. MICROHARDNESS DISTRIBUTION AT INTERFACE OF(N~++IP)-TiN COMPOSITE COATINGS ON STEEL[J]. Acta Metallurgica Sinica (English Letters), 1992, 5(8): 110-113.

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MICROHARDNESS DISTRIBUTION AT INTERFACE OF(N~++IP)-TiN COMPOSITE COATINGS ON STEEL

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