Influence of ZDDP tribofilm on micropitting formation and progression
Influence of ZDDP tribofilm on micropitting formation and progression
This paper presents insights into how Zinc Dialkyl Dithiophosphate (ZDDP) influences the formation and progression of micropitting. Experimental investigations were conducted using a twin-disc tribometer in rolling-sliding contacts under mixed or boundary lubrication conditions, focusing on the impact of ZDDP on micropitting in bearing steel samples. Results show that ZDDP reduces wear and increases surface friction by forming a tribofilm. This facilitates micropitting formation, but also retards the progression of micropitting. It highlights that understanding the chemical and mechanical interactions at the tribological interface is essential for designing effective mitigation strategies for managing micropitting and avoiding related issues in bearing applications.
micropitting, ZDDP, tribofilm, friction
Tian, Zaihao
6c5ef4d8-60aa-4615-910e-b47954e322e8
Lu, Ping
fd23d6f6-6474-4a94-95a4-c721d06a354a
Wang, Shuncai
8a390e2d-6552-4c7c-a88f-25bf9d6986a6
Merk, Daniel
2fedf927-8b2c-41cb-b6e0-40329a3ca193
Wood, Robert
d9523d31-41a8-459a-8831-70e29ffe8a73
18 July 2024
Tian, Zaihao
6c5ef4d8-60aa-4615-910e-b47954e322e8
Lu, Ping
fd23d6f6-6474-4a94-95a4-c721d06a354a
Wang, Shuncai
8a390e2d-6552-4c7c-a88f-25bf9d6986a6
Merk, Daniel
2fedf927-8b2c-41cb-b6e0-40329a3ca193
Wood, Robert
d9523d31-41a8-459a-8831-70e29ffe8a73
Tian, Zaihao, Lu, Ping, Wang, Shuncai, Merk, Daniel and Wood, Robert
(2024)
Influence of ZDDP tribofilm on micropitting formation and progression.
Tribology International, 199, [109938].
(doi:10.1016/j.triboint.2024.109938).
Abstract
This paper presents insights into how Zinc Dialkyl Dithiophosphate (ZDDP) influences the formation and progression of micropitting. Experimental investigations were conducted using a twin-disc tribometer in rolling-sliding contacts under mixed or boundary lubrication conditions, focusing on the impact of ZDDP on micropitting in bearing steel samples. Results show that ZDDP reduces wear and increases surface friction by forming a tribofilm. This facilitates micropitting formation, but also retards the progression of micropitting. It highlights that understanding the chemical and mechanical interactions at the tribological interface is essential for designing effective mitigation strategies for managing micropitting and avoiding related issues in bearing applications.
Text
Influence of ZDDP tribofilm on micropitting formation and progression_Tribology International
- Accepted Manuscript
Text
1-s2.0-S0301679X2400690X-main
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More information
Accepted/In Press date: 30 June 2024
e-pub ahead of print date: 8 July 2024
Published date: 18 July 2024
Keywords:
micropitting, ZDDP, tribofilm, friction
Identifiers
Local EPrints ID: 493174
URI: http://eprints.soton.ac.uk/id/eprint/493174
ISSN: 0301-679X
PURE UUID: 2eafafed-3e3e-4e0c-83dc-f550f5795df6
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Date deposited: 27 Aug 2024 16:33
Last modified: 28 Aug 2024 01:34
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Author:
Zaihao Tian
Author:
Daniel Merk
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