Atomic Diffusion in Laser Surface Modified AISI H13 Steel

This paper presents a laser surface modification process of AISI H13 steel using 0.09 and 0.4 mm of laser spot sizes with an aim to increase surface hardness and investigate elements diffusion in laser modified surface. A Rofin DC-015 diffusion-cooled CO2 slab laser was used to process AISI H13 stee...

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Main Authors: S. N., Aqida, Brabazon, Dermot, Naher, Sumsun
Format: Article
Published: Springer-Verlag 2013
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Online Access:http://umpir.ump.edu.my/id/eprint/6858/
http://umpir.ump.edu.my/id/eprint/6858/
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spelling ump-68582018-01-22T07:53:26Z http://umpir.ump.edu.my/id/eprint/6858/ Atomic Diffusion in Laser Surface Modified AISI H13 Steel S. N., Aqida Brabazon, Dermot Naher, Sumsun TJ Mechanical engineering and machinery This paper presents a laser surface modification process of AISI H13 steel using 0.09 and 0.4 mm of laser spot sizes with an aim to increase surface hardness and investigate elements diffusion in laser modified surface. A Rofin DC-015 diffusion-cooled CO2 slab laser was used to process AISI H13 steel samples. Samples of 10 mm diameter were sectioned to 100 mm length in order to process a predefined circumferential area. The parameters selected for examination were laser peak power, pulse repetition frequency (PRF), and overlap percentage. The hardness properties were tested at 981 mN force. Metallographic study and energy dispersive X-ray spectroscopy (EDXS) were performed to observe presence of elements and their distribution in the sample surface. Maximum hardness achieved in the modified surface was 1017 HV0.1. Change of elements composition in the modified layer region was detected in the laser modified samples. Diffusion possibly occurred for C, Cr, Cu, Ni, and S elements. The potential found for increase in surface hardness represents an important method to sustain tooling life. The EDXS findings signify understanding of processing parameters effect on the modified surface composition. Springer-Verlag 2013 Article PeerReviewed S. N., Aqida and Brabazon, Dermot and Naher, Sumsun (2013) Atomic Diffusion in Laser Surface Modified AISI H13 Steel. Applied Physics A, 112 (1). pp. 139-142. ISSN 0947-8396 (Print) 1432-0630 (Online) http://dx.doi.org/10.1007/s00339-012-7214-x DOI: 10.1007/s00339-012-7214-x
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
S. N., Aqida
Brabazon, Dermot
Naher, Sumsun
Atomic Diffusion in Laser Surface Modified AISI H13 Steel
description This paper presents a laser surface modification process of AISI H13 steel using 0.09 and 0.4 mm of laser spot sizes with an aim to increase surface hardness and investigate elements diffusion in laser modified surface. A Rofin DC-015 diffusion-cooled CO2 slab laser was used to process AISI H13 steel samples. Samples of 10 mm diameter were sectioned to 100 mm length in order to process a predefined circumferential area. The parameters selected for examination were laser peak power, pulse repetition frequency (PRF), and overlap percentage. The hardness properties were tested at 981 mN force. Metallographic study and energy dispersive X-ray spectroscopy (EDXS) were performed to observe presence of elements and their distribution in the sample surface. Maximum hardness achieved in the modified surface was 1017 HV0.1. Change of elements composition in the modified layer region was detected in the laser modified samples. Diffusion possibly occurred for C, Cr, Cu, Ni, and S elements. The potential found for increase in surface hardness represents an important method to sustain tooling life. The EDXS findings signify understanding of processing parameters effect on the modified surface composition.
format Article
author S. N., Aqida
Brabazon, Dermot
Naher, Sumsun
author_facet S. N., Aqida
Brabazon, Dermot
Naher, Sumsun
author_sort S. N., Aqida
title Atomic Diffusion in Laser Surface Modified AISI H13 Steel
title_short Atomic Diffusion in Laser Surface Modified AISI H13 Steel
title_full Atomic Diffusion in Laser Surface Modified AISI H13 Steel
title_fullStr Atomic Diffusion in Laser Surface Modified AISI H13 Steel
title_full_unstemmed Atomic Diffusion in Laser Surface Modified AISI H13 Steel
title_sort atomic diffusion in laser surface modified aisi h13 steel
publisher Springer-Verlag
publishDate 2013
url http://umpir.ump.edu.my/id/eprint/6858/
http://umpir.ump.edu.my/id/eprint/6858/
http://umpir.ump.edu.my/id/eprint/6858/
first_indexed 2023-09-18T22:03:01Z
last_indexed 2023-09-18T22:03:01Z
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