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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/58110/1/58084_Effect%20of%20process%20parameters_paper.pdf
http://irep.iium.edu.my/58110/2/58084_tentative.pdf
http://irep.iium.edu.my/58110/
https://icamme17.wordpress.com/
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spelling my.iium.irep.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 REM 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/
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
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/58110/1/58084_Effect%20of%20process%20parameters_paper.pdf
http://irep.iium.edu.my/58110/2/58084_tentative.pdf
http://irep.iium.edu.my/58110/
https://icamme17.wordpress.com/
_version_ 1643615283171033088
score 13.211869

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