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利用有限元分析法模拟计算硬质涂层Ti、TiN、TiCN和TiAlN在不同情况下所受应力状态分析。结果表明:涂层上所加载的应力越大,涂层内部残余应力越大,造成的涂层损坏也越严重;在同种基体合金情况下TiCN涂层比TiN涂层相对抗压性能较好;同一种结构硬质涂层镀在高速钢基体上较镀在硬质合金基体上耐热性较好;涂层厚度的增加导致涂层所受残余应力减小,增了基体的抗静载压力,提高了基体的抗压性;同种涂层在不同温度下工作时,温度越高,所受的残余应力越大。
The finite element analysis was used to simulate the stress state analysis of hard coatings Ti, TiN, TiCN and TiAlN under different conditions. The results show that the larger the stress applied to the coating, the greater the residual stress in the coating, resulting in more serious damage to the coating. In the same matrix alloy, TiCN coating has better compressive strength than TiN coating ; The same structure hard coating plated on the high-speed steel substrate plated on the cemented carbide substrate better heat resistance; coating thickness increases the residual stress suffered by the coating decreases, increasing the matrix anti-static load Pressure, improve the compressive resistance of the substrate; the same coating at different temperatures, the higher the temperature, the greater the residual stress.