Effect of process parameters on microhardness and microstructure of heat affected zone in TIG welded X65-HSLA steel

The objective of the present article was to study the influence of welding parameters (current, arc voltage, travel speed and heat input) on microhardness, depth, and microstructure of the heat-affected zone (HAZ) and to optimize the process parameters after accomplishment of the TIG welding process...

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Main Authors:	Musa, Hussin Abdullrhman, Maleque, Md. Abdul, Ali, Mohammad Yeakub
Format:	Conference or Workshop Item
Language:	English English
Published:	2017
Subjects:	T173.2 Technological change T175 Industrial research. Research and development TA401 Materials of engineering and construction TH Building construction TN600 Metallurgy
Online Access:	http://irep.iium.edu.my/58110/ http://irep.iium.edu.my/58110/ http://irep.iium.edu.my/58110/1/58084_Effect%20of%20process%20parameters_paper.pdf http://irep.iium.edu.my/58110/2/58084_tentative.pdf

id	iium-58110
recordtype	eprints
spelling	iium-581102017-08-22T07:14:22Z http://irep.iium.edu.my/58110/ Effect of process parameters on microhardness and microstructure of heat affected zone in TIG welded X65-HSLA steel Musa, Hussin Abdullrhman Maleque, Md. Abdul Ali, Mohammad Yeakub T173.2 Technological change T175 Industrial research. Research and development TA401 Materials of engineering and construction TH Building construction TN600 Metallurgy The objective of the present article was to study the influence of welding parameters (current, arc voltage, travel speed and heat input) on microhardness, depth, and microstructure of the heat-affected zone (HAZ) and to optimize the process parameters after accomplishment of the TIG welding process on X65 steel following suitable Taguchi experimental design. Microstructures of the welded samples were studied to analyze the changes in the microstructure of the material in terms of ferrite, pearlite, bainite, and martensite formations. Welding speed was found to be the most significant factors leading to changes in microhardness and metallurgical properties. The microhardness tended to increase significantly with the increase of welding speed from 1.0 to 2.5 mm/s whereas the width of HAZ decreased. The current and arc voltage were found to be less significant in relative comparison. The increase of welding heat input caused an increase in width (depth) of HAZ and the growth of prior austenite grains and then enlarged the grain size of coarse grain heat affected zone (CGHAZ). However, the amount of martensite in HAZ decreased accompanied by an opposite change of bainite. It can be concluded that the mechanical properties and the microstructural of HAZ area was strongly affected by the welding parameters. 2017-08-08 Conference or Workshop Item NonPeerReviewed application/pdf en http://irep.iium.edu.my/58110/1/58084_Effect%20of%20process%20parameters_paper.pdf application/pdf en http://irep.iium.edu.my/58110/2/58084_tentative.pdf Musa, Hussin Abdullrhman and Maleque, Md. Abdul and Ali, Mohammad Yeakub (2017) Effect of process parameters on microhardness and microstructure of heat affected zone in TIG welded X65-HSLA steel. In: International Conference on Advances in Manufacturing & Materials Engineering (ICAMME) 2017, 8th-9th Aug. 2017, Kuala Lumpur. (Unpublished) https://icamme17.wordpress.com/
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	T173.2 Technological change T175 Industrial research. Research and development TA401 Materials of engineering and construction TH Building construction TN600 Metallurgy
spellingShingle	T173.2 Technological change T175 Industrial research. Research and development TA401 Materials of engineering and construction TH Building construction TN600 Metallurgy Musa, Hussin Abdullrhman Maleque, Md. Abdul Ali, Mohammad Yeakub Effect of process parameters on microhardness and microstructure of heat affected zone in TIG welded X65-HSLA steel
description	The objective of the present article was to study the influence of welding parameters (current, arc voltage, travel speed and heat input) on microhardness, depth, and microstructure of the heat-affected zone (HAZ) and to optimize the process parameters after accomplishment of the TIG welding process on X65 steel following suitable Taguchi experimental design. Microstructures of the welded samples were studied to analyze the changes in the microstructure of the material in terms of ferrite, pearlite, bainite, and martensite formations. Welding speed was found to be the most significant factors leading to changes in microhardness and metallurgical properties. The microhardness tended to increase significantly with the increase of welding speed from 1.0 to 2.5 mm/s whereas the width of HAZ decreased. The current and arc voltage were found to be less significant in relative comparison. The increase of welding heat input caused an increase in width (depth) of HAZ and the growth of prior austenite grains and then enlarged the grain size of coarse grain heat affected zone (CGHAZ). However, the amount of martensite in HAZ decreased accompanied by an opposite change of bainite. It can be concluded that the mechanical properties and the microstructural of HAZ area was strongly affected by the welding parameters.
format	Conference or Workshop Item
author	Musa, Hussin Abdullrhman Maleque, Md. Abdul Ali, Mohammad Yeakub
author_facet	Musa, Hussin Abdullrhman Maleque, Md. Abdul Ali, Mohammad Yeakub
author_sort	Musa, Hussin Abdullrhman
title	Effect of process parameters on microhardness and microstructure of heat affected zone in TIG welded X65-HSLA steel
title_short	Effect of process parameters on microhardness and microstructure of heat affected zone in TIG welded X65-HSLA steel
title_full	Effect of process parameters on microhardness and microstructure of heat affected zone in TIG welded X65-HSLA steel
title_fullStr	Effect of process parameters on microhardness and microstructure of heat affected zone in TIG welded X65-HSLA steel
title_full_unstemmed	Effect of process parameters on microhardness and microstructure of heat affected zone in TIG welded X65-HSLA steel
title_sort	effect of process parameters on microhardness and microstructure of heat affected zone in tig welded x65-hsla steel
publishDate	2017
url	http://irep.iium.edu.my/58110/ http://irep.iium.edu.my/58110/ http://irep.iium.edu.my/58110/1/58084_Effect%20of%20process%20parameters_paper.pdf http://irep.iium.edu.my/58110/2/58084_tentative.pdf
first_indexed	2023-09-18T21:22:08Z
last_indexed	2023-09-18T21:22:08Z
_version_	1777411952614572032

Effect of process parameters on microhardness and microstructure of heat affected zone in TIG welded X65-HSLA steel

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