Page 94 - 摩擦学学报2025年第4期

第 45 卷 第 4 期 摩擦学学报（中英文） Vol 45 No 4
2025 年 4 月 Tribology Apr, 2025

DOI: 10.16078/j.tribology.2024039 CSTR: 32261.14.j.tribology.2024039

张亚江, 范淑光, 张玉娟, 余来贵, 张平余, 张晟卯. 油溶性纳米LaF 3 的抗微点蚀性能研究[J]. 摩擦学学报（中英文）, 2025, 45(4):
582−592. ZHANG Yajiang, FAN Shuguang, ZHANG Yujuan, YU Laigui, ZHANG Pingyu, ZHANG Shengmao. Micropitting
Resistance of Oil-Soluble Nano-LaF 3 in Gear Oil[J]. Tribology, 2025, 45(4): 582−592.

油溶性纳米LaF 的抗微点蚀性能研究
3

张亚江, 范淑光, 张玉娟, 余来贵, 张平余, 张晟卯 *
(河南大学 纳米科学与工程研究院，河南 开封 475004)

摘 要: 研究了LaF 3 纳米微粒作为抗微点蚀添加剂在边界润滑条件下改善轴承钢微点蚀及磨损行为的潜力. 用摩擦
磨损试验机(SRV-5)进行了模拟接触疲劳试验，用三维光学轮廓仪(Contour GT-K)测量了磨损痕迹的三维结构和磨
损体积，用扫描电子显微镜和能谱仪分析钢盘磨损表面的形貌及元素分布. 模拟接触疲劳试验和三维表征结果表
明：二(2-乙基己基)磷酸(D2EHPA)修饰LaF 3 纳米微粒具有优异的抗微点蚀性能. 表面分析结果表明随着载荷的增大
和试验时间的延长，齿轮油润滑的钢盘表面的微点蚀损伤越来越严重，而LaF 3 纳米微粒的加入使磨损表面更为光
滑平整，粗糙度大幅降低，有效抑制了微点蚀的萌生和发展，但没有在磨损表面检测到LaF 3 纳米微粒的沉积.
关键词: 三氟化镧; 纳米添加剂; 边界润滑; 微点蚀; 滚动接触疲劳
中图分类号: TH117.1 文献标志码: A 文章编号: 1004-0595(2025)04–0582–11

Micropitting Resistance of Oil-Soluble Nano-LaF in Gear Oil
3

ZHANG Yajiang, FAN Shuguang, ZHANG Yujuan, YU Laigui, ZHANG Pingyu, ZHANG Shengmao *

(Institute of Nanoscience and Engineering, Henan University, Henan Kaifeng 475004, China)
Abstract: Micropitting is a kind of hard gears, bearings and other slip-roll contact parts occurring in the border or mixed
lubrication state due to poor lubrication caused by surface fatigue damage phenomenon on a microscopic scale. The
appearance of micropitting will not only affect the accuracy of the transmission system, but also cause noise, vibration
problems, while the further evolution of micropitting will also cause pitting, abrasion and other serious forms of failure,
and even lead to broken teeth. Oil-soluble nano LaF 3 as a gear oil additive has excellent friction reduction and anti-wear
properties as well as extreme pressure carrying capacity, and has a broad application prospect in gear oils, but there are
fewer studies on applying nano-particles to anti-pitting, so this paper investigated the potential of LaF 3 nano-particles as
an anti-micro-pitting additive to improve the micro-pitting and wear behavior of bearing steel under boundary
lubrication conditions. Bis(2-ethylhexyl) phosphoric acid (D2EHPA)-modified LaF 3 nanoparticles were added into gear
oil at the optimal additive amount, and simulated contact fatigue experiments were carried out with a friction and wear
testing machine (SRV5), and the three-dimensional structure of the wear traces and the wear volume were measured with
a three-dimensional optical profiler (Contour GT-K), and the wear surface of the steel disc was analyzed with a scanning
electron microscope and an energy spectrometer. The morphology and elemental distribution of the steel disk wear

Received 16 February 2024, revised 17 April 2024, accepted 18 April 2024, available online 8 August 2024.
*Corresponding author. E-mail: zsm@vip.henu.edu.cn, Tel: +86-13592141599.
This project was supported by National Key Research and Development Program of China (2023YFB3812104), Henan Province Key
R&D project (231111230600) and Henan Province Science and Technology Research and Development Joint Project
(235101610007).
国家重点研发计划(2023YFB3812104)、河南省重点研发专项(231111230600)和河南省科技研发重点基金项目(235101610007)
资助.