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NUMERICAL ANALYSIS OF INFLUENCE OF MULTI-LAYER FILMS CONSTRUCTS ON NANOHARDNESS EXPERIMENTS

LIU Ying MEN Yutao LI Lin'an CHENG Guangqing Department of Mechanical Tianjin University, Tianjin 300072, China  
In this paper, in order to annlysis the influence of multi-layer component on microhardness testing, the pressing process of the indenter is simulated by FEPG (Finite Element Program Generator) software. The effects on multi-layers system including of different material soft layers, different thickness proportion between soft layer and hard layer and different layer number in the multilayer are analyzed. A conclusion that multilayer construct according to gradient layer can enhance film performance is drew. It is helpful to provide the reference data for microhardness testing.
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