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首页> 外文期刊>Journal of Materials Engineering and Performance >Dry Sliding Wear Behavior of Cr-Al-N Diffusion Coatings against Silicon Nitride
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Dry Sliding Wear Behavior of Cr-Al-N Diffusion Coatings against Silicon Nitride

机译：CR-Al-N扩散涂层对氮化硅的干燥滑动磨损行为

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In this study, the friction and wear behavior of uncoated and chromium aluminum nitride (Cr-Al-N)-coated AISI D2 tool steel disks were studied using a ball-on-disk system. Thermo-reactive diffusion technique was utilized to the coat desired phases onto pre-nitrided AISI D2 steel. The morphology and the phases formed on the coating layer were characterized by optical and scanning electron microscopy along with x-ray diffraction analysis. Friction and wear tests were conducted under atmospheric conditions with 2.5, 5 and 10 N loads at 0.1, 0.3 and 0.5 m/s sliding speeds against a silicon nitride ball. A dense and homogeneous coating layer with the thickness and hardness of 11.8 +/- 1.3 mu m and 2067 +/- 160 HV0.01 was obtained. The results revealed that the friction coefficient values varied between 0.6-0.942 and 0.025-0.479 for uncoated and Cr-Al-N-coated AISI D2 steels, respectively. The wear rate of the uncoated and Cr-Al-N-coated AISI D2 steel fluctuated in the range of 5.01 x 10(-4)-3.47 x 10(-3) mm(3)/m and 9.38 x 10(-5)-9.31 x 10(-4) mm(3)/m, respectively. The wear rate of the Cr-Al-N coating was much lower than that of the AISI D2 steel.
机译：在本研究中，使用球-盘系统研究了未涂层和铬-氮化铝（Cr-Al-N）涂层的AISI D2工具钢盘的摩擦磨损行为。利用热反应扩散技术在预氮化AISI D2钢上涂覆所需相。通过光学显微镜、扫描电子显微镜和x射线衍射分析对涂层的形貌和形成的相进行了表征。在大气条件下，以0.1、0.3和0.5 m/s的滑动速度，以2.5、5和10 N的载荷，对氮化硅球进行摩擦磨损试验。致密均匀的涂层，厚度和硬度为11.8+/-1.3μm，2067+/-160 HV0。获得0.01。结果表明，未涂层和Cr-Al-N涂层的AISI D2钢的摩擦系数值分别在0.6-0.942和0.025-0.479之间变化。未涂层和Cr-Al-N涂层AISI D2钢的磨损率分别在5.01 x 10（-4）-3.47 x 10（-3）mm（3）/m和9.38 x 10（-5）-9.31 x 10（-4）mm（3）/m范围内波动。Cr-Al-N涂层的磨损率远低于AISI D2钢。

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