摘要
为提高镁合金表面的减摩抗磨性能,采用往复式摩擦磨损试验机,研究了含不同质量分数纳米BN的水基润滑液在镁合金/钢摩擦体系的摩擦学性能演变规律。结果表明,试样的摩擦系数和磨损量均随着纳米BN在润滑液中的含量的增加而先降低后增加。当纳米BN在润滑液中的质量分数为0.5%时,润滑液表现出的摩擦学性能最优,该条件下的摩擦系数和磨损量相较于去离子水条件下的摩擦系数和磨损量分别降低了38.5%和70%。纳米BN水基润滑液优异的减摩抗磨性能归因于纳米BN在磨痕表面的沉积,从而在摩擦界面间形成了保护膜,进而有效避免了摩擦副之间的直接接触。
For improving the friction reduction and anti-wear properties of magnesium alloy surface,the evolution law of tribological performances of water-based lubricants with the different nano BN concentrations were evaluated using a reciprocating ball-on-plate tribometer for magnesium alloy/steel pairs.Results showed that the friction coefficient and wear loss of the samples decreased first and then increased with the increase of the content of nano BN in the lubricating fluid.When the mass fraction of nano BN in the lubricating fluid was 0.5%,the lubricating fluid exhibited the best tribological properties,and the friction coefficient and wear amount under this condition were reduced by 38.5%and 70%respectively,compared with those under the deionized water condition.The excellent friction reduction and anti-wear properties of nano-BN water-based lubricants were attributed to the deposition of nano BN on the surface of wear scars,which formed a protective film between the friction interfaces,thereby effectively avoided direct contact between friction pairs.
作者
韦永毅
谢红梅
何林杪
芶庆霜
毛京双
杨贵川
WEI Yong-yi;XIE Hong-mei;HE Lin-miao;GOU Qing-shuang;MAO Jing-shuang;YANG Gui-chuan(College of Materials Science and Engineering,Yangtze Normal University,Chongqing 408100,China)
出处
《材料保护》
CAS
CSCD
2023年第4期68-73,共6页
Materials Protection
基金
国家级大学生创新创业训练计划项目(202110647004)资助。
关键词
纳米BN
水基润滑添加剂
镁合金
摩擦学性能
nano BN
water-based lubricant additive
magnesium alloy
tribological properties
