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Metallographic examination of Cryogenically treated steel weldments

Organized by School of Materials Engineering & Sustainable Engineering Research Cluster, 1st - 2nd December 2009 at Putra Brasmana Hotel, Kuala Perlis, Perlis.

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Bibliographic Details
Main Authors: S. Rasool, Mohideen, Nor Azalli, Azmir
Format: Working Paper
Language:English
Published: Universiti Malaysia Perlis 2010
Subjects:
Materials engineering
Steel
Welded joints
Welding
Metallurgy
Metallography
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/7475
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spelling my.unimap-74752010-01-12T01:12:10Z Metallographic examination of Cryogenically treated steel weldments S. Rasool, Mohideen Nor Azalli, Azmir Materials engineering Steel Welded joints Welding Metallurgy Metallography Organized by School of Materials Engineering & Sustainable Engineering Research Cluster, 1st - 2nd December 2009 at Putra Brasmana Hotel, Kuala Perlis, Perlis. Introduction: Materials are made suitable to the requirements by subjecting them to various treatment process. Weldments, due to their heterogeneous nature, are generally treated prior to and after the welding process. Deep Cryogenic processing is a one-time, homogenous process that provides significant extension in the performance and productive life of various metallic components from brake rotors, gears, engines, machine parts, machine tools and gun barrels with more and more applications being discovered every day. The metallurgy behind cryogenic processing of high carbon steel is that it creates a large amount of fine or small carbides that precipitate uniformly throughout the lattice structure, resulting in close and fine grain structures [1,2]. This greatly improves the wear properties of metal. The martensitic phase transformation creates a metallurgically improved and stabilized alloy. Barron [3] has also attributed the improvement of the wear resistance of these tools to grain refinement besides the transformation of the retained austenite into martensite. He verified that this new mechanism would be time and temperature dependent as the tools would have to stay a long period (8 h or more of soaking) at cryogenic temperatures. Hence the deep cryogenic treatment with a larger soaking time would bring out an enhancement in mechanical properties which may be due to phase transformation or /and grain refinement. This investigation thus metallographically analyzes the behavior of steel weldments under deep cryogenic treatment. 2010-01-11T06:21:37Z 2010-01-11T06:21:37Z 2009-12-01 Working Paper p.1-5 http://hdl.handle.net/123456789/7475 en Proceedings of the Malaysian Metallurgical Conference '09 (MMC'09) Universiti Malaysia Perlis
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Materials engineering
Steel
Welded joints
Welding
Metallurgy
Metallography
spellingShingle Materials engineering
Steel
Welded joints
Welding
Metallurgy
Metallography
S. Rasool, Mohideen
Nor Azalli, Azmir
Metallographic examination of Cryogenically treated steel weldments
description Organized by School of Materials Engineering & Sustainable Engineering Research Cluster, 1st - 2nd December 2009 at Putra Brasmana Hotel, Kuala Perlis, Perlis.
format Working Paper
author S. Rasool, Mohideen
Nor Azalli, Azmir
author_facet S. Rasool, Mohideen
Nor Azalli, Azmir
author_sort S. Rasool, Mohideen
title Metallographic examination of Cryogenically treated steel weldments
title_short Metallographic examination of Cryogenically treated steel weldments
title_full Metallographic examination of Cryogenically treated steel weldments
title_fullStr Metallographic examination of Cryogenically treated steel weldments
title_full_unstemmed Metallographic examination of Cryogenically treated steel weldments
title_sort metallographic examination of cryogenically treated steel weldments
publisher Universiti Malaysia Perlis
publishDate 2010
url http://dspace.unimap.edu.my/xmlui/handle/123456789/7475
_version_ 1643788834304950272
score 13.214268

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