首页|Study on improving fretting wear properties of AISI 4135 steel via diverse surface modifications under grease lubrication
Study on improving fretting wear properties of AISI 4135 steel via diverse surface modifications under grease lubrication
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
To alleviate the fretting damage of the locking pin in variable-gauge train, the substrate (AISI 4135 steel) was surface-treated with laser quenching (LQ), plasma nitriding (PN), and bonded MoS2 coating respectively. Their fretting behavior and wear mechanism under grease lubrication conditions were experimentally analyzed. The results indicated that the two surface strengthening measures (LQ and PN) significantly improved the wear resistance of the substrate. The lowest energy dissipation occurs on the bonded MoS2 coating, but its low surface hardness results in the largest abrasion loss. Furthermore, a high-hardness and rough Fe-N compound layer was generated on the PN-treated surface, which is conducive to the formation of synergistic lubrication at the contact interface with grease, and had the optimum effect of reducing fretting damage. This study provides solutions and application reference for the surface engineering protection of similar mechanical components in the engineering field.
NSTL
Elsevier
