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王莉,付志强,岳文,康嘉杰,朱丽娜,王成彪,屈盛官.W含量对CrWN涂层在干摩擦和油润滑下的摩擦学性能影响[J].稀有金属材料与工程(英文),2019,48(7):2371~2378.[Wang Li,Fu Zhiqing,Yue Wen,Kang Jiajie,Zhu Lina,Wang Chengbiao and Qu Shengguan.Effect of W Content on Tribological Performance of CrWN Coating under Dry Friction and Oil Lubrication Conditions[J].Rare Metal Materials and Engineering,2019,48(7):2371~2378.]
Effect of W Content on Tribological Performance of CrWN Coating under Dry Friction and Oil Lubrication Conditions
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Received:February 04, 2018  Revised:April 15, 2018
DOI:
Key words: CrWN  coating  tribological performance  W content  oil lubrication
Foundation item:国家自然科学基金项目(面上项目,重点项目,重大项目)
Author NameAffiliation
Wang Li,Fu Zhiqing,Yue Wen,Kang Jiajie,Zhu Lina,Wang Chengbiao and Qu Shengguan  
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Abstract:
      The effect of W content on the tribological properties of CrWN coatings under dry friction and PAO lubrication conditions was investigated by scanning electron microscope, X-ray diffractometer, nano-indentation tester, 3D profile-meter, and reciprocating tribometer. It was shown that the microstructure of CrWN coatings prepared by ion beam assisted deposition is changed from dense columnar crystals to coarse columnar crystals and then fibrous crystals. The hardness is first increased and then decreased with the increase of W content, and the maximum hardness is obtained when the W content is 9.96 at.%. Under dry friction condition, the friction coefficients of CrWN coatings are decreased first and then almost unchanged with the increase of W content; however, under PAO oil lubrication condition, the friction coefficients of CrWN coatings are gradually decreased with the increase of W content. Under dry friction, the introduction of W into CrN coatings at a low content will aggravate the wear of CrN-coated samples and their counterpart balls; but the wear resistance of CrN-coated samples and their counterpart balls is obviously improved by doping W.