Effect of cryogenic cooling on the micro structure and properties of ferritic stainless steel welds

In the present research, cryogenic cooling was applied in refining the weld microstructure and the dimension. The investigation was conducted by producing weld melts on a 1.5 mm thick FSS plate using TIG torch with different energy inputs in a pure argon environment. A Box- Behnken experimental desi...

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Main Author:	Mridha, Shahjahan
Format:	Monograph
Language:	English
Published:	s.n 2012
Subjects:	TJ1480 Agricultural machinery TJ170 Mechanics applied to machinery. Dynamics
Online Access:	http://irep.iium.edu.my/33210/ http://irep.iium.edu.my/33210/ http://irep.iium.edu.my/33210/1/Prof._Shahjahan_Summary_EDW_B11-030-0508.pdf

id	iium-33210
recordtype	eprints
spelling	iium-332102014-01-30T09:03:13Z http://irep.iium.edu.my/33210/ Effect of cryogenic cooling on the micro structure and properties of ferritic stainless steel welds Mridha, Shahjahan TJ1480 Agricultural machinery TJ170 Mechanics applied to machinery. Dynamics In the present research, cryogenic cooling was applied in refining the weld microstructure and the dimension. The investigation was conducted by producing weld melts on a 1.5 mm thick FSS plate using TIG torch with different energy inputs in a pure argon environment. A Box- Behnken experimental design was adopted with current, traversing speed and the flow rates of cryogenic liquid as the process parameters. The weld microstructure was characterized using optical microscopy, X-ray diffraction, mechanical testing and fractography. The degree of grain refinement achieved was estimated using an innovative index known as Grain Refinement Index (GRI). This new scheme of cryogenic cooling created very significant level of grain refining of the weld structure and also reduced the weld geometry substantially. The heat affected zone (HAZ) is reduced by about 35% to that of the conventional weld; the grain size refined to a level where the weld joint ductility is 80% of the base metal without the formation of any brittle phase. s.n 2012-06-11 Monograph NonPeerReviewed application/pdf en http://irep.iium.edu.my/33210/1/Prof._Shahjahan_Summary_EDW_B11-030-0508.pdf Mridha, Shahjahan (2012) Effect of cryogenic cooling on the micro structure and properties of ferritic stainless steel welds. Research Report. s.n. (Unpublished) EDW B11-030-0508
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TJ1480 Agricultural machinery TJ170 Mechanics applied to machinery. Dynamics
spellingShingle	TJ1480 Agricultural machinery TJ170 Mechanics applied to machinery. Dynamics Mridha, Shahjahan Effect of cryogenic cooling on the micro structure and properties of ferritic stainless steel welds
description	In the present research, cryogenic cooling was applied in refining the weld microstructure and the dimension. The investigation was conducted by producing weld melts on a 1.5 mm thick FSS plate using TIG torch with different energy inputs in a pure argon environment. A Box- Behnken experimental design was adopted with current, traversing speed and the flow rates of cryogenic liquid as the process parameters. The weld microstructure was characterized using optical microscopy, X-ray diffraction, mechanical testing and fractography. The degree of grain refinement achieved was estimated using an innovative index known as Grain Refinement Index (GRI). This new scheme of cryogenic cooling created very significant level of grain refining of the weld structure and also reduced the weld geometry substantially. The heat affected zone (HAZ) is reduced by about 35% to that of the conventional weld; the grain size refined to a level where the weld joint ductility is 80% of the base metal without the formation of any brittle phase.
format	Monograph
author	Mridha, Shahjahan
author_facet	Mridha, Shahjahan
author_sort	Mridha, Shahjahan
title	Effect of cryogenic cooling on the micro structure and properties of ferritic stainless steel welds
title_short	Effect of cryogenic cooling on the micro structure and properties of ferritic stainless steel welds
title_full	Effect of cryogenic cooling on the micro structure and properties of ferritic stainless steel welds
title_fullStr	Effect of cryogenic cooling on the micro structure and properties of ferritic stainless steel welds
title_full_unstemmed	Effect of cryogenic cooling on the micro structure and properties of ferritic stainless steel welds
title_sort	effect of cryogenic cooling on the micro structure and properties of ferritic stainless steel welds
publisher	s.n
publishDate	2012
url	http://irep.iium.edu.my/33210/ http://irep.iium.edu.my/33210/ http://irep.iium.edu.my/33210/1/Prof._Shahjahan_Summary_EDW_B11-030-0508.pdf
first_indexed	2023-09-18T20:48:00Z
last_indexed	2023-09-18T20:48:00Z
_version_	1777409804454592512

Effect of cryogenic cooling on the micro structure and properties of ferritic stainless steel welds

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