Investigation of residual stress retention of titanium alloy after different levels of material removal

Compressive residual stresses within a material are beneficial. It provides benefits such as increasing fatigue strength and fatigue life, it is also able to inhibit crack propagation and it is due to these benefits that they are widely utilized in industries such as the aerospace industry. Compress...

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Main Author: Muhammad Siddiq Bin Abdul Shukor
Other Authors: Sridhar Idapalapati
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2024
Subjects:
Online Access:https://hdl.handle.net/10356/177227
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-1772272024-06-01T16:50:28Z Investigation of residual stress retention of titanium alloy after different levels of material removal Muhammad Siddiq Bin Abdul Shukor Sridhar Idapalapati School of Mechanical and Aerospace Engineering Advanced remanufacturing and technology centre MSridhar@ntu.edu.sg Engineering Hammer peening Compressive residual stresses within a material are beneficial. It provides benefits such as increasing fatigue strength and fatigue life, it is also able to inhibit crack propagation and it is due to these benefits that they are widely utilized in industries such as the aerospace industry. Compressive residual stress may be induced into the material via plastic deformation of the surface of the material. The impact of the processes will then propagate into the material thus altering the microstructure within the material. To induce them, industries commonly utilize processes such as deep cold rolling and hammer peening, which involves plastically deforming the surface of the material. However depending on the parameters set on these processes, compressive residual stresses are not able to propagate all the way through the material, there will be a point whereby the strength of the compressive residual stresses will decreases as the depth of analysis increases, hence the goal of this study is to identify as to where this will occur, effectively this study focuses on the degree of compressive residual stress retention of Ti64 which is the primary material of this study. Specimens of hammer peened Ti64 were used, each specimen have also undergone different levels of material removal at that the location whereby the hammer peening was conducted. Despite the differing levels of material removal among the specimens, compiled their residual stress analysis exhibited a trend which coincided with residual stress analysis conducted on a hammer peened specimen of Ti64 that was not subjected to material removal. Bachelor's degree 2024-05-27T02:46:21Z 2024-05-27T02:46:21Z 2024 Final Year Project (FYP) Muhammad Siddiq Bin Abdul Shukor (2024). Investigation of residual stress retention of titanium alloy after different levels of material removal. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/177227 https://hdl.handle.net/10356/177227 en B232 application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering
Hammer peening
spellingShingle Engineering
Hammer peening
Muhammad Siddiq Bin Abdul Shukor
Investigation of residual stress retention of titanium alloy after different levels of material removal
description Compressive residual stresses within a material are beneficial. It provides benefits such as increasing fatigue strength and fatigue life, it is also able to inhibit crack propagation and it is due to these benefits that they are widely utilized in industries such as the aerospace industry. Compressive residual stress may be induced into the material via plastic deformation of the surface of the material. The impact of the processes will then propagate into the material thus altering the microstructure within the material. To induce them, industries commonly utilize processes such as deep cold rolling and hammer peening, which involves plastically deforming the surface of the material. However depending on the parameters set on these processes, compressive residual stresses are not able to propagate all the way through the material, there will be a point whereby the strength of the compressive residual stresses will decreases as the depth of analysis increases, hence the goal of this study is to identify as to where this will occur, effectively this study focuses on the degree of compressive residual stress retention of Ti64 which is the primary material of this study. Specimens of hammer peened Ti64 were used, each specimen have also undergone different levels of material removal at that the location whereby the hammer peening was conducted. Despite the differing levels of material removal among the specimens, compiled their residual stress analysis exhibited a trend which coincided with residual stress analysis conducted on a hammer peened specimen of Ti64 that was not subjected to material removal.
author2 Sridhar Idapalapati
author_facet Sridhar Idapalapati
Muhammad Siddiq Bin Abdul Shukor
format Final Year Project
author Muhammad Siddiq Bin Abdul Shukor
author_sort Muhammad Siddiq Bin Abdul Shukor
title Investigation of residual stress retention of titanium alloy after different levels of material removal
title_short Investigation of residual stress retention of titanium alloy after different levels of material removal
title_full Investigation of residual stress retention of titanium alloy after different levels of material removal
title_fullStr Investigation of residual stress retention of titanium alloy after different levels of material removal
title_full_unstemmed Investigation of residual stress retention of titanium alloy after different levels of material removal
title_sort investigation of residual stress retention of titanium alloy after different levels of material removal
publisher Nanyang Technological University
publishDate 2024
url https://hdl.handle.net/10356/177227
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