Tribological properties of liquid-metal galinstan as novel additive in lithium grease
Tribological properties of liquid-metal galinstan as novel additive in lithium grease
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DOI：
10.1016/j.triboint.2018.07.036
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发表时间：
2018-12-01
影响因子：
6.2
通讯作者：
Tian, Yu
中科院分区：
文献类型：
--
作者：
Bai, Pengpeng;Li, Shaowei;Tian, Yu
将不同比例的镓基液态金属（GBLM）加入到润滑脂中，通过机械搅拌和球磨进行均质化。采用四球摩擦磨损试验研究了纯GBLM、纯润滑脂及GBLM作为锂基润滑脂添加剂的摩擦学性能。结果表明，纯GBLM在低负荷下的抗磨性能较差，而润滑脂在高负荷下的润滑性能也不理想。在润滑脂中加入GBLM后，润滑脂的极压润滑能力得到有效提高，而低负荷下的抗磨性能没有下降。当GBLM与特定市售锂基润滑脂的质量比达到1：1时，焊接载荷超过10 kN，这是润滑脂的最大值。
Gallium-based liquid metal (GBLM) was added into grease with different proportions and homogenized through mechanical agitation and ball milling. The tribological properties of pure GBLM, pure greases and GBLM as an additive in lithium greases have been investigated by four-ball test. Results showed that pure GBLM exhibited poor anti-wear performance under low load, and the lubricating performance of greases under high load was not satisfactory. After GBLM was added to the grease, the extreme pressure lubrication capacity of the latter was effectively increased, whereas the anti-wear performance under low load did not decrease. When the mass ratio of GBLM to specific commercial lithium grease reached 1:1, the weld load was over 10 kN, which was the maximum value for greases.