Fabrication and tribological properties of bionic surface texture self-lubricating 60NiTi alloy via selective laser melting and infiltration

被引：0

作者：

Yan, Xiaofei ^{[1
]}

Yan, Hua ^{[1
,2
]}

Zhang, Peilei ^{[1
]}

Lu, Qinghua ^{[1
]}

Shi, Haichuan ^{[1
]}

机构：

[1] Shanghai Univ Engn Sci, Sch Mat Sci & Engn, Shanghai 201620, Peoples R China

[2] Hohai Univ, Coll Agr Sci & Engn, Nanjing 211100, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2025年 / 202卷

基金：

中国博士后科学基金;

关键词：

60NiTi; Bionic surface texture; Self-lubrication; Tribological properties; FILM; PERFORMANCE; BEHAVIOR; WEAR; SN;

D O I：

10.1016/j.triboint.2024.110364

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Due to its low elastic modulus, low density, non-magnetic and good lubricity, 60NiTi alloy is considered a novel fourth-generation aerospace bearing material. In this paper, 60NiTi biomimetic surface textured self-lubricating composites were fabricated by selective laser melting (SLM) and high-temperature fusion infiltration (HTFI). The effects of different slit widths (NTD), edge lengths (NTA), and soft metal Sn-Pb-Ag (SPA) infiltration on its tribological properties were studied. The results show that the NTA-SPA structural samples with medium texture density (rho = 16 %) promoted the diffusion of the lubricant phase to the friction surface, resulting in a complete lubricant film. The COF stabilized at 0.2, and the wear rate decreased to 0.56 x 10-3 mm3/Nm, providing a more stable self-lubrication effect compared to the NTD-SPA sample.

引用

页数：13