A novel scheme for weld microstructure control using cryogenic cooling

Muhammed Olawale Hakeem, Amuda and Mridha, Shahjahan (2011) A novel scheme for weld microstructure control using cryogenic cooling. Advanced Materials Research, 264/65. pp. 343-348. ISSN 1662-8985

Preview

PDF Download (138kB) | Preview

Abstract

In this work, the preliminary result on the effect of cryogenic cooling on grain growth in weld is reported. Ferritic stainless steel weld produced under TIG torch in argon environment is cooled in liquid nitrogen. The weld structure is characterized using LOM, SEM and EDX spectroscopy. The results suggest that cryogenic cooling reduced the weld width within 2% to 5% and HAZ to 39% relative to those cooled in normal condition. This ensures that the area of the base metal affected and exposed to the weld thermal cycle is reduced and hence probably generates less metallurgical distortion. The cryogenic cooling also generated 14% to 36% grain refinement compared to welds cooled in normal condition.

Item Type:	Article (Journal)
Additional Information:	3925/5072
Uncontrolled Keywords:	Ferritic stainless steel weld, welding techniques, grain refinement, mechanical property, weld microstructure.
Subjects:	T Technology > TN Mining engineering. Metallurgy > TN600 Metallurgy
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Prof. Dr. Shahjahan Mridha
Date Deposited:	23 Nov 2011 11:38
Last Modified:	28 May 2012 10:49
URI:	http://irep.iium.edu.my/id/eprint/5072

Actions (login required)

View Item