Improved welding refurbishment procedure for superalloys gas turbine using fea with experimental verification / Mohd Sarizal Abu Bakar

This study presents Finite Element Anaysis application to improve process in Superalloys gas turbine components welding refurbishment. Refurbishment of Superalloys gas turbine components is one of the methods use to reduce cost in operating and prolong gas turbine components life cycle, with weldin...

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Main Author:	Abu Bakar, Mohd Sarizal
Format:	Thesis
Language:	English
Published:	2014
Subjects:	Gas turbines Welding
Online Access:	http://ir.uitm.edu.my/id/eprint/14058/ http://ir.uitm.edu.my/id/eprint/14058/1/TM_MOHD%20SARIZAL%20ABU%20BAKAR%20EM%2014_5.pdf

id	uitm-14058
recordtype	eprints
spelling	uitm-140582016-06-29T06:56:40Z http://ir.uitm.edu.my/id/eprint/14058/ Improved welding refurbishment procedure for superalloys gas turbine using fea with experimental verification / Mohd Sarizal Abu Bakar Abu Bakar, Mohd Sarizal Gas turbines Welding This study presents Finite Element Anaysis application to improve process in Superalloys gas turbine components welding refurbishment. Refurbishment of Superalloys gas turbine components is one of the methods use to reduce cost in operating and prolong gas turbine components life cycle, with welding as one of the major repair technique. Close tolerance requirements in gas turbine components fabrication and refurbishment practice demanded the improvement of welding procedure in order to minimize the problem of distortion. Uncontrolled distortion will lead to parts rejection and reduction in gas turbine efficiency. This work will present methods to obtain optimum welding parameters through simulation by SYSWELD and experimentation. The works presented here are divided into three case studies with final aim to improve repair procedure of Superalloys gas turbine components. Case Study 1 confirmed the suitabilit>- of SYSWELD code using Goldak model to simulate Superalloys material wielding for 3.2mm thickness material. Case Study 2 focuses on finding optimum parameters to perform multipass welding namely interval time and choice of filler material. The fillers used in this study are Inconel 617, Inconel 625, C 263 and Hastelloy X. Base material employed in this study is Inconel 718. It was found that the best filler is Inconel 617 and optimum interval time is 50 seconds. Case Study 3 showed FEA result on multipass welding performed at the tip of gas turbine blade. The result from this case study shows that FEA can be used to analyze repair welding works and subsequently helps to improve repair procedure of Superalloys gas turbine components. 2014 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/14058/1/TM_MOHD%20SARIZAL%20ABU%20BAKAR%20EM%2014_5.pdf Abu Bakar, Mohd Sarizal (2014) Improved welding refurbishment procedure for superalloys gas turbine using fea with experimental verification / Mohd Sarizal Abu Bakar. Masters thesis, Universiti Teknologi MARA.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Gas turbines Welding
spellingShingle	Gas turbines Welding Abu Bakar, Mohd Sarizal Improved welding refurbishment procedure for superalloys gas turbine using fea with experimental verification / Mohd Sarizal Abu Bakar
description	This study presents Finite Element Anaysis application to improve process in Superalloys gas turbine components welding refurbishment. Refurbishment of Superalloys gas turbine components is one of the methods use to reduce cost in operating and prolong gas turbine components life cycle, with welding as one of the major repair technique. Close tolerance requirements in gas turbine components fabrication and refurbishment practice demanded the improvement of welding procedure in order to minimize the problem of distortion. Uncontrolled distortion will lead to parts rejection and reduction in gas turbine efficiency. This work will present methods to obtain optimum welding parameters through simulation by SYSWELD and experimentation. The works presented here are divided into three case studies with final aim to improve repair procedure of Superalloys gas turbine components. Case Study 1 confirmed the suitabilit>- of SYSWELD code using Goldak model to simulate Superalloys material wielding for 3.2mm thickness material. Case Study 2 focuses on finding optimum parameters to perform multipass welding namely interval time and choice of filler material. The fillers used in this study are Inconel 617, Inconel 625, C 263 and Hastelloy X. Base material employed in this study is Inconel 718. It was found that the best filler is Inconel 617 and optimum interval time is 50 seconds. Case Study 3 showed FEA result on multipass welding performed at the tip of gas turbine blade. The result from this case study shows that FEA can be used to analyze repair welding works and subsequently helps to improve repair procedure of Superalloys gas turbine components.
format	Thesis
author	Abu Bakar, Mohd Sarizal
author_facet	Abu Bakar, Mohd Sarizal
author_sort	Abu Bakar, Mohd Sarizal
title	Improved welding refurbishment procedure for superalloys gas turbine using fea with experimental verification / Mohd Sarizal Abu Bakar
title_short	Improved welding refurbishment procedure for superalloys gas turbine using fea with experimental verification / Mohd Sarizal Abu Bakar
title_full	Improved welding refurbishment procedure for superalloys gas turbine using fea with experimental verification / Mohd Sarizal Abu Bakar
title_fullStr	Improved welding refurbishment procedure for superalloys gas turbine using fea with experimental verification / Mohd Sarizal Abu Bakar
title_full_unstemmed	Improved welding refurbishment procedure for superalloys gas turbine using fea with experimental verification / Mohd Sarizal Abu Bakar
title_sort	improved welding refurbishment procedure for superalloys gas turbine using fea with experimental verification / mohd sarizal abu bakar
publishDate	2014
url	http://ir.uitm.edu.my/id/eprint/14058/ http://ir.uitm.edu.my/id/eprint/14058/1/TM_MOHD%20SARIZAL%20ABU%20BAKAR%20EM%2014_5.pdf
first_indexed	2023-09-18T22:50:47Z
last_indexed	2023-09-18T22:50:47Z
_version_	1777417529355927552

Improved welding refurbishment procedure for superalloys gas turbine using fea with experimental verification / Mohd Sarizal Abu Bakar

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