The University of Southampton
University of Southampton Institutional Repository
Warning ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

Hydrocarbon lubricants can control hydrogen embrittlement

Hydrocarbon lubricants can control hydrogen embrittlement
Hydrocarbon lubricants can control hydrogen embrittlement
While it is well known that during RCF tests the formation of nascent catalytic sites on the wear track can break down hydrocarbon molecules to release atomic hydrogen, the potential of the hydrogen environment in fuel cells to hydrocrack the hydrocarbon lubricant in high pressure rolling contacts has so far been ignored. Here we investigate for the first time the ability of the hydrogen environment to generate a chemical tribofilm on the wear track most likely through lubricant hydrocracking, as compared with argon and air environments. Despite the ability of the hydrogen environment to generate a notably larger amount of atomic hydrogen, the chemical tribofilm significantly prevents the formation of atomic hydrogen and its subsequent diffusion through the lattice of steel rolling element bearings. This is of great importance in the lubrication of hydrogen technology and the prevention of Hydrogen embrittlement (HE). An investigation into the prospects of high energy micro-computed-tomography (Micro-CT) as a non-destructive technique for sub-surface damage characterisation in RCF was comparatively performed alongside traditional sectioning methods.
control, hydrocarbon, hydrogen embrittlement, lubricants
2045-2322
1-14
Ratoi, Monica
cfeffe10-31ca-4630-8399-232c4bc2beff
Tanaka, Hiroyoshi
3590bace-54f9-4647-b10f-2852c25f9f36
Mellor, Brian
2b13b80f-880b-49ac-82fe-827a15dde2fe
Sugimura, Joichi
fd2a9a25-1b09-44e4-b8ca-d5cb66ea67db
Ratoi, Monica
cfeffe10-31ca-4630-8399-232c4bc2beff
Tanaka, Hiroyoshi
3590bace-54f9-4647-b10f-2852c25f9f36
Mellor, Brian
2b13b80f-880b-49ac-82fe-827a15dde2fe
Sugimura, Joichi
fd2a9a25-1b09-44e4-b8ca-d5cb66ea67db

Ratoi, Monica, Tanaka, Hiroyoshi, Mellor, Brian and Sugimura, Joichi (2020) Hydrocarbon lubricants can control hydrogen embrittlement. Scientific Reports, 10 (1), 1-14, [1361]. (doi:10.1038/s41598-020-58294-y).

Record type: Article

Abstract

While it is well known that during RCF tests the formation of nascent catalytic sites on the wear track can break down hydrocarbon molecules to release atomic hydrogen, the potential of the hydrogen environment in fuel cells to hydrocrack the hydrocarbon lubricant in high pressure rolling contacts has so far been ignored. Here we investigate for the first time the ability of the hydrogen environment to generate a chemical tribofilm on the wear track most likely through lubricant hydrocracking, as compared with argon and air environments. Despite the ability of the hydrogen environment to generate a notably larger amount of atomic hydrogen, the chemical tribofilm significantly prevents the formation of atomic hydrogen and its subsequent diffusion through the lattice of steel rolling element bearings. This is of great importance in the lubrication of hydrogen technology and the prevention of Hydrogen embrittlement (HE). An investigation into the prospects of high energy micro-computed-tomography (Micro-CT) as a non-destructive technique for sub-surface damage characterisation in RCF was comparatively performed alongside traditional sectioning methods.

Text
Text - Hydrocarbon Lubricants Can Control Hydrogen Embrittlement-final - Accepted Manuscript
Available under License Creative Commons Attribution.
Download (73kB)
Text
Figs - Hydrocarbon lubricants can control HE - Accepted Manuscript
Available under License Creative Commons Attribution.
Download (977kB)
Text
Hydrocarbon Lubricants - Version of Record
Available under License Creative Commons Attribution.
Download (2MB)

More information

Accepted/In Press date: 23 January 2020
e-pub ahead of print date: 28 January 2020
Published date: 28 January 2020
Keywords: control, hydrocarbon, hydrogen embrittlement, lubricants

Identifiers

Local EPrints ID: 437667
URI: http://eprints.soton.ac.uk/id/eprint/437667
ISSN: 2045-2322
PURE UUID: 191b1358-85c1-4108-ac83-83c399c32249

Catalogue record

Date deposited: 10 Feb 2020 17:31
Last modified: 25 Nov 2021 17:38

Export record

Altmetrics

Contributors

Author: Monica Ratoi
Author: Hiroyoshi Tanaka
Author: Brian Mellor
Author: Joichi Sugimura

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×