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Tribological behaviour of 316L stainless steel additively manufactured by laser powder bed fusion and processed via high-pressure torsion

Tribological behaviour of 316L stainless steel additively manufactured by laser powder bed fusion and processed via high-pressure torsion
Tribological behaviour of 316L stainless steel additively manufactured by laser powder bed fusion and processed via high-pressure torsion
For the first time, the tribological behaviour of 316 L stainless steel (316 L SS) additively manufactured via laser powder bed fusion (L-PBF) with ultrafine- and nano-grains obtained from high-pressure torsion (HPT) processing has been investigated. The pin-on-disk dry sliding wear test results demonstrate enhancement wear performance after HPT processing, as indicated by the consistently lower coefficient of friction (COF), mass loss, m and specific wear rate, k values than the as-received state. The improvement in overall wear resistance could be attributed to the significantly high hardness obtained due to the nano-scale grain refinement with increasing torsional strains. Microscopy analysis suggests that the wear mechanism transitioned from severe abrasive wear before HPT to a combination of mild abrasive, adhesive, and tribo-oxidative wear after HPT.
Tribology, Dry sliding wear, Pin-on-disk, Wear mechanisms, Laser powder bed fusion, High-pressure torsion
0924-0136
Mohd Yusuf, Shahir Yasin Bin
5888c057-33da-45f3-a84d-95a291db8f34
Lim, Daryl
9f1ca3e4-5f4f-41ad-8733-eefbd45eacb2
Chen, Ying
7936c116-7db0-4c36-924f-7995f7f09771
Yang, Shoufeng
e0018adf-8123-4a54-b8dd-306c10ca48f1
Gao, Nong
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Mohd Yusuf, Shahir Yasin Bin
5888c057-33da-45f3-a84d-95a291db8f34
Lim, Daryl
9f1ca3e4-5f4f-41ad-8733-eefbd45eacb2
Chen, Ying
7936c116-7db0-4c36-924f-7995f7f09771
Yang, Shoufeng
e0018adf-8123-4a54-b8dd-306c10ca48f1
Gao, Nong
9c1370f7-f4a9-4109-8a3a-4089b3baec21

Mohd Yusuf, Shahir Yasin Bin, Lim, Daryl, Chen, Ying, Yang, Shoufeng and Gao, Nong (2020) Tribological behaviour of 316L stainless steel additively manufactured by laser powder bed fusion and processed via high-pressure torsion. Journal of Materials Processing Technology, 290, [116985]. (doi:10.1016/j.jmatprotec.2020.116985).

Record type: Article

Abstract

For the first time, the tribological behaviour of 316 L stainless steel (316 L SS) additively manufactured via laser powder bed fusion (L-PBF) with ultrafine- and nano-grains obtained from high-pressure torsion (HPT) processing has been investigated. The pin-on-disk dry sliding wear test results demonstrate enhancement wear performance after HPT processing, as indicated by the consistently lower coefficient of friction (COF), mass loss, m and specific wear rate, k values than the as-received state. The improvement in overall wear resistance could be attributed to the significantly high hardness obtained due to the nano-scale grain refinement with increasing torsional strains. Microscopy analysis suggests that the wear mechanism transitioned from severe abrasive wear before HPT to a combination of mild abrasive, adhesive, and tribo-oxidative wear after HPT.

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Accepted_Manuscript_Tribology_Paper - Accepted Manuscript
Restricted to Repository staff only until 19 November 2022.
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Accepted/In Press date: 19 November 2020
Published date: 27 November 2020
Additional Information: Funding Information: S. Mohd Yusuf would like to thank the Faculty of Engineering and Physical Sciences, University of Southampton for his PhD studentship. The TEM experiments were carried out by Y. Chen with financial aids from the National Science Foundation of Fujian Province, China (No. 51601162 ) and High-Level Talent Funding for Xiamen Oversea Returnee . Funding Information: S. Mohd Yusuf would like to thank the Faculty of Engineering and Physical Sciences, University of Southampton for his PhD studentship. The TEM experiments were carried out by Y. Chen with financial aids from the National Science Foundation of Fujian Province, China (No. 51601162) and High-Level Talent Funding for Xiamen Oversea Returnee. Publisher Copyright: © 2020 Elsevier B.V. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
Keywords: Tribology, Dry sliding wear, Pin-on-disk, Wear mechanisms, Laser powder bed fusion, High-pressure torsion

Identifiers

Local EPrints ID: 448853
URI: http://eprints.soton.ac.uk/id/eprint/448853
ISSN: 0924-0136
PURE UUID: b1c24597-eec9-45b2-82a9-8ce4f05d2788
ORCID for Shoufeng Yang: ORCID iD orcid.org/0000-0002-3888-3211

Catalogue record

Date deposited: 07 May 2021 16:30
Last modified: 26 Nov 2021 00:03

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Contributors

Author: Daryl Lim
Author: Ying Chen
Author: Shoufeng Yang ORCID iD
Author: Nong Gao

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