SURFACE STRENGTHENING AND FRICTION WEAR OF THE INNER WALL OF LIQUID SODIUM HYDROSTATIC BEARING

Hui Yang, Xuefeng Yang, Jinlong Cao, Qimin Hou, Jian Cheng, Shouren Wang () and Yalong Gao
Additional contact information
Hui Yang: College of Mechanical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China
Xuefeng Yang: College of Mechanical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China
Jinlong Cao: College of Mechanical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China
Qimin Hou: College of Mechanical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China
Jian Cheng: ��College of Mechanical Engineering, Hubei University of Technology, Hubei 430068, P. R. China
Shouren Wang: College of Mechanical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China
Yalong Gao: College of Mechanical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China

Surface Review and Letters (SRL), 2022, vol. 29, issue 03, 1-13

Abstract: Sodium hydrodynamic bearings are parts which are easy to wear in order to improve the wear resistance of the inner wall and prolong the service life. In this paper, high-temperature element W was used as a variable to prepare cobalt-based alloy coatings with different contents of W. By testing the hardness and anti-wear performance of the coatings at high temperature, the microstructure and wear mechanism of the coatings were further analyzed in combination with crystal phase diagram and microscopic morphology diagram. The results show that the coefficient of friction of cobalt-based alloy coating decreases with the increase of W content under high-temperature dry rubbing, while the wear quantity increases with the increase of W content. Under high-temperature oil lubrication, the coefficient of friction of cobalt-based alloy coating is the lowest when the W content is 12%. The wear amount of cobalt-based alloy coating decreases with the increase of W content, and the wear mechanism changes from adhesion wear to abrasive wear with the increase of W content.

Keywords: Liquid sodium hydrostatic bearing; Co-based alloy coating; W content; friction and wear (search for similar items in EconPapers)
Date: 2022
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X22500329
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:29:y:2022:i:03:n:s0218625x22500329

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X22500329

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().