Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, dissertation, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

The Effect of Time during Post Weld Heat Treatment (PWHT) on Mechanical Properties of Copper Alloy with Gas Metal Arc Welding (GMAW)

Nasindram, N.Diviniya (2015) The Effect of Time during Post Weld Heat Treatment (PWHT) on Mechanical Properties of Copper Alloy with Gas Metal Arc Welding (GMAW). IRC, Universiti Teknologi PETRONAS. (Unpublished)

[img]
Preview
PDF
Download (1691Kb) | Preview

Abstract

In this project the effect of time during post weld heat treatment on the mechanical properties of copper alloy was studied using gas metal arc welding (GMAW) technique. Gas metal arc welding technique is a welding technique that uses heat energy to combine metal parts. Copper aluminum also known as aluminum bronze is selected as the representative for copper alloy electrode in this study. It is an inevitable fact that mechanical properties of a material changes when it undergoes heat treatment. In this project, post weld heat treatment at a constant temperature and varying time period were conducted upon welding to 6 test samples. The effect of time during post weld heat treatment on the welded joint was studied using Charpy Impact test in accordance with ASTM E23. Furthermore, hardness test and microstructure observation have been conducted on the welded material to observe the changes in the mechanical properties of the welded material at the weld joint and heat affected zone. The size and pattern of the microstructure at the joint are the primary factors that affect the impact strength of the joined metal parts. The results obtained from this study shows that the impact toughness increases at the weld joint when the time of post weld heat treatment is increased. The hardness at the weld joint is improved significantly with increase in time of post weld heat treatment and only a slight increase in hardness is observed at the base metal close to the welded joint. In the microstructure observation it is observed that grain growth has occurred and grain migration have occurred reducing the residual stresses at the joint.

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: Ahmad Suhairi Mohamed Lazim
Date Deposited: 07 Oct 2015 10:18
Last Modified: 25 Jan 2017 09:35
URI: http://utpedia.utp.edu.my/id/eprint/15695

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...