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Title:Combining ultrafast laser texturing and laser hardening to enhance surface durability by improving hardness and wear performance
Authors:ID Cholkar, Abhijit (Author)
ID Chatterjee, Suman (Author)
ID Kumar, Sujith (Author)
ID Sedlaček, Marko (Author)
ID Podgornik, Bojan (Author)
ID Kinahan, David (Author)
ID Brabazon, Dermot (Author)
Files:.pdf PDF - Presentation file, download (4,46 MB)
MD5: BC8E7A772D665BCBD4E49B89FC53A57A
 
URL URL - Source URL, visit https://onlinelibrary.wiley.com/doi/10.1002/adem.202401183?af=R
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo IMT - Institute of Metals and Technology
Abstract:Aluminum alloy 7075 is utilized widely across marine, aerospace, and automotive sectors. However, its surface wear resistance has hindered its application in certain tribological environments. Addressing this challenge, the current study examines a hybrid laser method to increase surface wear resistance by combining two techniques: ultrafast laser texturing and laser-based surface hardening. Ultrafast laser processing is conducted using 3 W laser power, 100 kHz pulse repetition rate, 4 mm s-1 scanning speed, and three different scan patterns. After the texturing operation, laser-based surface hardening is then performed on these textures using a continuous wave laser. The laser heat treatment is conducted using laser powers of 400 and 500 W with three different scan speeds of 1, 2, and 3 mm s-1 . Microhardness evaluations show a notable increase in hardness, with the hardest sample exhibiting a 17.8% increase compared to the pristine sample. The lasertextured and laser heat-treated samples exhibit a significant reduction in the average coefficient of friction and wear volumes compared to samples that were laser-textured but not laser heat-treated. The investigated laser processing strategy offers a promising approach for surface modification, enhancing both mechanical properties and wear resistance of aluminum alloy 7075 surfaces.
Keywords:hardness, laser hardening, parametric modeling, surface modification, ultrafast laser texturing, wear resistance
Publication status:Published
Publication version:Version of Record
Publication date:01.10.2024
Publisher:Wiley-VCH GmbH
Year of publishing:2024
Number of pages:str. 1-15
Numbering:Vol. 26, iss. 20
Source:Nemčija
UDC:620.1:669.715:621.9.048.7
ISSN on article:1527-2648
DOI:10.1002/adem.202401183 New window
COBISS.SI-ID:206576643 New window
Copyright:© 2024 The Author(s)
Note:Nasl. z nasl. zaslona; Opis vira z dne 6. 9. 2024; Št. članka: 2401183;
Publication date in DiRROS:05.11.2024
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Downloads:10
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Record is a part of a journal

Title:Advanced engineering materials
Shortened title:Adv. eng. mater.
Publisher:Wiley-VCH
ISSN:1527-2648
COBISS.SI-ID:4025371 New window

Document is financed by a project

Funder:EC - European Commission
Funding programme:European Union’s Horizon 2020 Research and Innovation Programme
Project number:862100 (NewSkin)

Funder:SFI - Science Foundation Ireland
Project number:16/RC/3872

Funder:EC - European Commission
Funding programme:European Regional Development Fund

Funder:Other - Other funder or multiple funders
Funding programme:I-Form industry partners

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

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