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Process-property-microstructure relationships in laser-powder bed fusion of 420 stainless steel.

Subrata Deb Nath

2018Englishthermal treatmentheat treatmentphysical metallurgyadditive manufacturinglaser powder bed fusionstainless steel

Abstract

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This doctoral dissertation investigates the process-property-microstructure relationships in laser-powder bed fusion (LPBF) of 420 stainless steel, addressing the growing interest in additive manufacturing technologies for engineering applications. The objective of this research is to delineate how variations in processing parameters affect the resultant material properties and microstructural characteristics of the final product. A combination of experimental and analytical methodologies was employed, which included controlled LPBF experiments and extensive characterization techniques such as scanning electron microscopy (SEM), X-ray diffraction (XRD), and mechanical testing. Results demonstrate a significant correlation between the processing parameters and the resulting microstructure, revealing the importance of factors such as layer thickness, feedstock characteristics, and thermal management during the LPBF process. Additionally, the study identifies optimal processing conditions conducive to enhancing mechanical performance, highlighting the potential of LPBF technology for producing high-performance steel components. The findings contribute valuable insights to the field of mechanical engineering and materials science, particularly in relation to advanced manufacturing techniques for metals.

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Cite This Work

@article{52142006-48a6-4692-8446-5dbd52ed9fa4,
  title={Process-property-microstructure relationships in laser-powder bed fusion of 420 stainless steel.},
  author={Subrata Deb Nath},
  year={2018},
  language={English}
}
TY  - JOUR
TI  - Process-property-microstructure relationships in laser-powder bed fusion of 420 stainless steel.
AU  - Subrata Deb Nath
PY  - 2018
LA  - English
ER  -

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