Zhang Qingyu

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Stresses due to thermal mismatch develop in thin coatings ZrN deposited by arc ion plating technique when cooled down to room temperature from deposition temperature. A 2D finite element model for coating substrate system has been investigated to simulate thermal mismatch stress. It has been validated that mismatch of coefficient of thermal expansion (CTE)(More)
the residual stress model of structure design of ZrN coated cutting tools had been established, and the residual stress among ZrN coating, substrate, and interlayer had also been calculated by finite element thermal-mechanical coupling method to ensure the structure of ZrN coated tools. ZrN coated cutting tools had been manufactured using arc ion plating(More)
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