Preparation of Ni-W Coatings and Their Wear Resistance and Corrosion Resistance
摘 要
采用电镀方式在黄铜基体上制备不同钨含量的镍钨镀层。通过X射线衍射仪(XRD)分析了不同钨含量镀层经不同温度退火处理后的相组成及其晶粒尺寸,确定最佳退火温度。分别通过摩擦磨损试验和电化学测试评价不同钨含量镀层的耐磨性和耐蚀性。结果表明:随着热处理温度的升高,镀层晶粒尺寸增大,300℃退火处理后,镀层晶粒尺寸相对细小,该温度是镀层较适宜的热处理温度;钨含量增加对镀层起到细化晶粒的作用,随着钨含量升高,镀层的耐磨性和耐蚀性提高。
Abstract
Ni-W coatings with different tungsten content were prepared on brass substrate by electroplating. The phase composition and grain size of the coatings with different tungstate content and annealed at different temperatures were analyzed by X-ray diffraction (XRD), for determining the optimum annealing temperature of the coatings. The wear resistance and corrosion resistance of the coatings with different tungsten content were evaluated by friction and wear test and electrochemical test, respectively. The results showed that the grain size of the coatings increased with the increase of heat treatment temperature. The coatings annealed at 300℃ had relatively small grain size, which was the most suitable heat treatment temperature for Ni-W coatings. The increase of tungsten content could refine the grain size of the coatings. With the increase of tungsten content, the wear resistance and corrosion resistance of the coatings were improved.
中图分类号 TG172.6 DOI 10.11973/fsyfh-202308006
所属栏目 试验研究
基金项目 国网福建省电力有限公司科技项目(521304210004)
收稿日期 2021/10/21
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引用该论文: XIA Xiaojian,WAN Xinyuan,YAN Kanghua,CHEN Yunxiang,HAN Jiceng,HONG Yicheng,LIN Deyuan. Preparation of Ni-W Coatings and Their Wear Resistance and Corrosion Resistance[J]. Corrosion & Protection, 2023, 44(8): 29
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【4】周小卫, 沈以赴, 靳惠明. 超声波-双脉冲电沉积法制备Ni-CeO2纳米复合镀层[J]. 材料热处理学报, 2012, 33(2):127-131.
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【10】ZHONG Z M, CLOUSER S J. Nickel-tungsten alloy brush plating for engineering applications[J]. Surface and Coatings Technology, 2014, 240:380-386.
【11】OHGAI T, FUJIMARU T, TANAKA Y. Isotropic magnetization response of electrodeposited nanocrystalline Ni-W alloy nanowire arrays[J]. Journal of Applied Electrochemistry, 2014, 44(2):301-307.
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