Laser powder bed fusion of 316L stainless steel to investigate the process parameters on densification

This project investigates the laser powder bed fusion (LPBF) 3D printing process for 316L stainless steel. The main goal is to understand how the printing parameters affect the density of the printed material. Various techniques are used to analyses the microstructure, porosity, composition, residua...

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Main Author: Koh, Yik Cheng
Other Authors: Leonard Ng Wei Tat
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2024
Subjects:
Online Access:https://hdl.handle.net/10356/176209
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1762092024-05-27T00:48:12Z Laser powder bed fusion of 316L stainless steel to investigate the process parameters on densification Koh, Yik Cheng Leonard Ng Wei Tat School of Materials Science and Engineering A*STAR Institute of Material Research and Engineering leonard.ngwt@ntu.edu.sg Engineering Laser powder bed fusion Densification Stainless steel This project investigates the laser powder bed fusion (LPBF) 3D printing process for 316L stainless steel. The main goal is to understand how the printing parameters affect the density of the printed material. Various techniques are used to analyses the microstructure, porosity, composition, residual stress, and hardness of the printed samples. An optical microscope examines the microstructure and measures porosity to determine density. The samples are polished, imaged, and etched to reveal internal layers and study their features. X-ray diffraction assesses residual stress, providing insights into structural integrity. Vickers hardness tests measure hardness values to understand how densification impacts mechanical properties. Scanning electron microscopy and energy-dispersive X-ray spectroscopy identify composition variations between layers, indicating quality differences. Overall, this comprehensive study analyses how densification affects the microstructure, porosity, and hardness of LPBF- printed 316L stainless steel, contributing to optimizing printing parameters for improved material properties in additive manufacturing. Bachelor's degree 2024-05-27T00:48:12Z 2024-05-27T00:48:12Z 2024 Final Year Project (FYP) Koh, Y. C. (2024). Laser powder bed fusion of 316L stainless steel to investigate the process parameters on densification. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/176209 https://hdl.handle.net/10356/176209 en 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
Laser powder bed fusion
Densification
Stainless steel
spellingShingle Engineering
Laser powder bed fusion
Densification
Stainless steel
Koh, Yik Cheng
Laser powder bed fusion of 316L stainless steel to investigate the process parameters on densification
description This project investigates the laser powder bed fusion (LPBF) 3D printing process for 316L stainless steel. The main goal is to understand how the printing parameters affect the density of the printed material. Various techniques are used to analyses the microstructure, porosity, composition, residual stress, and hardness of the printed samples. An optical microscope examines the microstructure and measures porosity to determine density. The samples are polished, imaged, and etched to reveal internal layers and study their features. X-ray diffraction assesses residual stress, providing insights into structural integrity. Vickers hardness tests measure hardness values to understand how densification impacts mechanical properties. Scanning electron microscopy and energy-dispersive X-ray spectroscopy identify composition variations between layers, indicating quality differences. Overall, this comprehensive study analyses how densification affects the microstructure, porosity, and hardness of LPBF- printed 316L stainless steel, contributing to optimizing printing parameters for improved material properties in additive manufacturing.
author2 Leonard Ng Wei Tat
author_facet Leonard Ng Wei Tat
Koh, Yik Cheng
format Final Year Project
author Koh, Yik Cheng
author_sort Koh, Yik Cheng
title Laser powder bed fusion of 316L stainless steel to investigate the process parameters on densification
title_short Laser powder bed fusion of 316L stainless steel to investigate the process parameters on densification
title_full Laser powder bed fusion of 316L stainless steel to investigate the process parameters on densification
title_fullStr Laser powder bed fusion of 316L stainless steel to investigate the process parameters on densification
title_full_unstemmed Laser powder bed fusion of 316L stainless steel to investigate the process parameters on densification
title_sort laser powder bed fusion of 316l stainless steel to investigate the process parameters on densification
publisher Nanyang Technological University
publishDate 2024
url https://hdl.handle.net/10356/176209
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