Synergistic Effect of Elliptic Textures and H-DLC Coatings for Enhancing the Tribological Performance of CuAl10Fe5Ni5 Valve Plate Surfaces

Author:

Wang Mengjiao12,Zhu Mingbo2,Hu Xinzheng2,Liu Kun1,Fan Xuefeng3,Meng Xiangkai2,Peng Xudong2ORCID,Wang Jinqing4ORCID

Affiliation:

1. School of Mechanical Engineering, Hefei University of Technology, Hefei 230000, China

2. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China

3. Zhejiang Changsheng Slide Bearing Co., Ltd., Jiaxing 314100, China

4. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China

Abstract

Axial piston pumps with compact structures and high efficiency are widely used in construction machinery. The efficiency and lifetime strongly depend on the tribological performance of the pump’s valve plate pair. To enhance the tribological performance of the valve plate pair, surface textures, and H-DLC coatings were fabricated to modify the CuAl10Fe5Ni5 surfaces. The influences of elliptic textures of different sizes and textured H-DLC coatings on the surface friction and wear properties of the valve plate surface under oil lubrication were evaluated using a ring-on-disk tribometer. The results reveal that the friction and wear properties of the CuAl10Fe5Ni5 surfaces are significantly enhanced by elliptic textures, and the friction coefficient and wear rate of textured CuAl10Fe5Ni5 with E90 are maximally decreased by 95% and 87%, respectively. Compared with the surface textures and H-DLC coatings, the textured H-DLC coating has the greatest ability to reduce wear and adhesion. The wear rate of the textured H-DLC coating is further reduced by 98%. This improvement can be explained by the synergistic effect of the elliptic textures and H-DLC coatings, which are attributed to the reduced contact area, debris capture, and secondary lubrication of the elliptic textures, and increased surface hardness.

Funder

Natural Science Foundation of Zhejiang Province

National Natural Science Foundation of China

Open Project of the State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences

State Key Program of the National Natural Science Foundation of China

Publisher

MDPI AG

Reference40 articles.

1. Hydraulic axial plunger pump: Gaseous and vaporous cavitation characteristics and optimization method;Suo;Eng. Appl. Comp. Fluid.,2021

2. Research progress on service damage and protection of axial piston pump sliding shoe pair;Wang;Surf. Technol.,2023

3. Xu, L. (2016). Study on the Lubrication Characterisics of the Valve Plate Bearing in Hydraulic Axial Piston Pump, Beijing Institute of Technology.

4. Structural improvement, material selection and surface treatment for improved tribological performance of friction pairs in axial piston pumps: A review;Wang;Tribol. Int.,2024

5. Multi-objective optimization of micronscale surface textures for the cylinder/valve plate interface in axial piston pumps;Chen;Tribol. Int.,2019

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3