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Control of the corrosion resistance of TiN-coated AISI 304 stainless steel

机译:TiN涂层AISI 304不锈钢的耐腐蚀性控制

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摘要

The corrosion resistance of ion-plated TiN on AISI 304 stainless steel was evaluated by the ASTM standard B-117 salt spray test. The experimental results indicated that the residual stresses in the coating and the packing factor of the TiN thin film are two important parameters which control the corrosion behavior of the specimens. The residual stress in the thin film was estimated, in terms of interfacial shear stress, by a periodic cracking method. It is found that for the TiN-coated stainless steel good corrosion resistance can be obtained for specimens with the measured interfacial shear stress lower than -4 Gpa and the packing factor higher than 0.84.
机译:通过ASTM标准B-117盐雾试验评估了AISI 304不锈钢上离子镀TiN的耐腐蚀性。实验结果表明,涂​​层中的残余应力和TiN薄膜的堆积系数是控制试样腐蚀行为的两个重要参数。通过界面开裂法,根据界面剪切应力来估计薄膜中的残余应力。结果表明,对于TiN涂层的不锈钢,所测界面剪切应力低于-4 Gpa且堆积系数高于0.84时,可以获得良好的耐腐蚀性。

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