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MICROSTRUCTURE AND MECHANICAL PROPERTIES EVALUATIONS OF HEAT TREATED DISSIMILAR METAL JOINT WELDMENT BETWEEN API 5CT C90 AND ASTM A182 F22

OTHMAN, MOHD HAFIZ (2010) MICROSTRUCTURE AND MECHANICAL PROPERTIES EVALUATIONS OF HEAT TREATED DISSIMILAR METAL JOINT WELDMENT BETWEEN API 5CT C90 AND ASTM A182 F22. Universiti Teknologi Petronas. (Unpublished)

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Abstract

In this research, dissimilar metal welding of API 5CT C90 and ASTM A182 F22 is used to connect between the upset riser pipe and the riser connector of a marine riser. API 5CT C90 material is the material have high carbon content that lead to its high hardness and low weldability. Proper welding parameters need to be qualified so that the welding process will give desired mechanical properties, less costly and consume less time. Therefore, post-weld heat treatment (PWHT) is needed to reduce the hardness and increase the impact energy of the weldment as the intermixture zone at fusion line between the base metal and weld metal has potential of having high hardness due to residual stress in the intermixed microstructure after high temperature welding.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Petroleum
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 14 Mar 2014 15:44
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/13646

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