The Effect of Fiber Laser Parameters on Microhardness and Microstructure of Duplex Stainless Steel

An investigation was implement to study the influence of laser power, and speed of the welding on hardness, microstructure, and penetration of laser welding bead on plate duplex stainless steel, which is not exhibited so far. A fiber laser was selected for welding duplex stainless steel sheet with 2...

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Main Authors: Mohammed, Ghusoon R., M., Ishak, S. N., Aqida, Hassan, A. Abdulhadi
Format: Conference or Workshop Item
Language:English
Published: EDP Sciences 2016
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/16722/7/fkm-2017-mishak-The%20effect%20of%20fiber%20laser%20parameters.pdf
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author Mohammed, Ghusoon R.
M., Ishak
S. N., Aqida
Hassan, A. Abdulhadi
author_facet Mohammed, Ghusoon R.
M., Ishak
S. N., Aqida
Hassan, A. Abdulhadi
author_sort Mohammed, Ghusoon R.
collection UMP
description An investigation was implement to study the influence of laser power, and speed of the welding on hardness, microstructure, and penetration of laser welding bead on plate duplex stainless steel, which is not exhibited so far. A fiber laser was selected for welding duplex stainless steel sheet with 2 mm thickness. Then, optical microscope (OM) was used in the morphologic observation of cross section, penetration depth, and bead width. Microhardness of the welded sheet was measured using Vickers hardness. Profiles of hardness and microstructure were utilized to discriminate welding line and to propose superior welding parameters. The experimental results displayed that, a good quality of duplex steel welds can be acquired when a suitable fiber laser welding parameters were selected. It was found that microhardness profiles showed a rise in the hardness of the weld and heat-affected zones as the solidification process proceeds rapidly. Additionally, the crystal solidification process induced by the fiber laser welding was schematically clarified and systematically exposed.
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spelling UMPir167222018-01-22T06:46:10Z http://umpir.ump.edu.my/id/eprint/16722/ The Effect of Fiber Laser Parameters on Microhardness and Microstructure of Duplex Stainless Steel Mohammed, Ghusoon R. M., Ishak S. N., Aqida Hassan, A. Abdulhadi TJ Mechanical engineering and machinery An investigation was implement to study the influence of laser power, and speed of the welding on hardness, microstructure, and penetration of laser welding bead on plate duplex stainless steel, which is not exhibited so far. A fiber laser was selected for welding duplex stainless steel sheet with 2 mm thickness. Then, optical microscope (OM) was used in the morphologic observation of cross section, penetration depth, and bead width. Microhardness of the welded sheet was measured using Vickers hardness. Profiles of hardness and microstructure were utilized to discriminate welding line and to propose superior welding parameters. The experimental results displayed that, a good quality of duplex steel welds can be acquired when a suitable fiber laser welding parameters were selected. It was found that microhardness profiles showed a rise in the hardness of the weld and heat-affected zones as the solidification process proceeds rapidly. Additionally, the crystal solidification process induced by the fiber laser welding was schematically clarified and systematically exposed. EDP Sciences 2016 Conference or Workshop Item PeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/16722/7/fkm-2017-mishak-The%20effect%20of%20fiber%20laser%20parameters.pdf Mohammed, Ghusoon R. and M., Ishak and S. N., Aqida and Hassan, A. Abdulhadi (2016) The Effect of Fiber Laser Parameters on Microhardness and Microstructure of Duplex Stainless Steel. In: MATEC Web of Conferences: The 2nd International Conference on Automotive Innovation and Green Vehicle (AiGEV 2016) , 2-3 August 2016 , Malaysia Automotive Institute, Cyberjaya, Selangor. pp. 1-8., 90 (01024). ISSN 2261-236X https://doi.org/10.1051/matecconf/20179001024
spellingShingle TJ Mechanical engineering and machinery
Mohammed, Ghusoon R.
M., Ishak
S. N., Aqida
Hassan, A. Abdulhadi
The Effect of Fiber Laser Parameters on Microhardness and Microstructure of Duplex Stainless Steel
title The Effect of Fiber Laser Parameters on Microhardness and Microstructure of Duplex Stainless Steel
title_full The Effect of Fiber Laser Parameters on Microhardness and Microstructure of Duplex Stainless Steel
title_fullStr The Effect of Fiber Laser Parameters on Microhardness and Microstructure of Duplex Stainless Steel
title_full_unstemmed The Effect of Fiber Laser Parameters on Microhardness and Microstructure of Duplex Stainless Steel
title_short The Effect of Fiber Laser Parameters on Microhardness and Microstructure of Duplex Stainless Steel
title_sort effect of fiber laser parameters on microhardness and microstructure of duplex stainless steel
topic TJ Mechanical engineering and machinery
url http://umpir.ump.edu.my/id/eprint/16722/7/fkm-2017-mishak-The%20effect%20of%20fiber%20laser%20parameters.pdf
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