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
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/6858/ http://umpir.ump.edu.my/id/eprint/6858/ http://umpir.ump.edu.my/id/eprint/6858/

id	ump-6858
recordtype	eprints
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
_version_	1777414523946270720

Atomic Diffusion in Laser Surface Modified AISI H13 Steel

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