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首页> 外文期刊>International journal of surface engineering and interdisciplinary materials science >Taguchi Based Optimization for Micro Hardness of Cold Spray Coating Process
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Taguchi Based Optimization for Micro Hardness of Cold Spray Coating Process

机译：基于Taguchi的冷喷涂涂层显微硬度优化

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摘要

In this paper, low pressure cold spray process has been employed to produce coatings on three different substrates. The experiments have been designed using Taguchi L 18 array where the input parameters have been selected as the type of feed arrangement, substrate material, stagnation temperature, stagnation pressure of the compressed gas and stand-off distance. The effect of these key parameters on raw data and Signal to Noise (S/N) ratio for micro hardness of low pressure cold spray process has been studied. The coatings were successfully developed on the substrates and the micro hardness of the so produced coatings has been measured The results show that a high value of micro hardness can be obtained by selecting the input parameters which increases the impact velocity of the striking particles. These high velocity impacting particles produces apeening effect to already attached powder particles thereby increasing the micro hardness of obtained coatings. It is seen that the significant process parameters are type of powder feeding arrangement, substrate material, stand-off distance, stagnation pressure of carrier gas and stagnation temperature of the carrier gas.
机译：在本文中，已采用低压冷喷涂工艺在三种不同的基材上生产涂层。实验是使用Taguchi L 18阵列设计的，其中输入参数已选择为进料装置的类型，基材材料，停滞温度，压缩气体的停滞压力和间隔距离。研究了这些关键参数对原始数据和信噪比（S / N）对低压冷喷涂工艺显微硬度的影响。在基材上成功开发了涂层，并测量了所制得涂层的显微硬度。结果表明，通过选择输入参数可以提高击打颗粒的撞击速度，从而获得较高的显微硬度值。这些高速冲击颗粒对已经附着的粉末颗粒产生强化作用，从而增加了获得的涂层的显微硬度。可以看出，重要的工艺参数是粉末进料装置的类型，基底材料，支座距离，载气的停滞压力和载气的停滞温度。

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