三种固体润滑剂化学镀镍预处理方案的优化

IF 6.1 1区 工程技术 Q1 ENGINEERING, MECHANICAL
Wear Pub Date : 2025-06-01 DOI:10.1016/j.wear.2025.205939
Songcheng Tan , Chengkai Guan , Wenjie Zhao , Zhiming Wang , Yuxin Zhang , Longchen Duan
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引用次数: 0

摘要

由于月球钻井环境中没有循环介质来冷却钻头和清除钻屑,因此要求金刚石取心钻头具有良好的自润滑性能。在钻头基体中添加化学镀镍固体润滑剂可以有效地解决这一问题,同时增强自润滑钻头基体的力学性能。本文针对三种典型固体润滑剂(MoS2、WS2和CaF2)设计了两种预处理方案,并通过系统试验得出了适合每种固体润滑剂的最优预处理方案。试验结果表明,化学镀镍前处理方案对三种固体润滑剂有不同的影响。在粗化过程中,十二烷基硫酸钠(SDS)的引入会在CaF2表面产生更加致密均匀的凹点,而SDS在MoS2粗化过程中的引入则会导致MoS2的破裂和崩解。另外,WS2在粗化过程中会被氧化为WO3,因此应避免对WS2进行粗化处理。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optimization of pretreatment schemes for electroless nickel plating of three solid lubricants
Since there is no circulating medium to cool bits and clear drilling cuttings in the lunar drilling environment, the diamond coring bit is required to have good self-lubricating performance. Adding electroless nickel plated solid lubricants to the bit matrix can solve this problem efficiently, and reinforce the mechanical properties of the self-lubricated bit matrix at the same time. In this paper, two pretreatment schemes were designed according to three typical solid lubricants (i.e. MoS2, WS2, and CaF2), and the optimal pretreatment scheme suits for each solid lubricant were obtained by systematic tests. The test results show that the pretreatment scheme of electroless nickel plating has different effects on the three solid lubricants. During the roughening process, the introduce of sodium dodecyl sulfate (SDS) will produce more dense and uniform pits on the surface of CaF2, while that of SDS on the roughening process of MoS2 is leading to the rupture and disintegration of MoS2. Besides, WS2 will be oxidized to WO3 during the roughening process, so the roughening process should be avoid for WS2.
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来源期刊
Wear
Wear 工程技术-材料科学:综合
CiteScore
8.80
自引率
8.00%
发文量
280
审稿时长
47 days
期刊介绍: Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.
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