Date on Master's Thesis/Doctoral Dissertation
5-2016
Document Type
Master's Thesis
Degree Name
M.S.
Department
Mechanical Engineering
Degree Program
Mechanical Engineering, MS
Committee Chair
Atre, Sundar
Committee Member
Williams, Stuart
Committee Member
Yang, Li
Author's Keywords
Laser-Powder Bed Fusion; 17-4 PH Stainless Steel; Mechanical Properties; Microstructures; Water-Atomized
Abstract
Laser powder bed fusion (L-PBF) is a potential manufacturing route for the production of tooling using different steel materials. However, there is a limited understanding of how the mechanical properties and microstructures of the L-PBF produced parts vary with change in powder type and process conditions. The current research studied the influence of L-PBF process parameters on mechanical properties and microstructures of 17-4PH stainless steel using gas and water-atomized powders. The results demonstrate the feasibility of using water-atomized powders as starting raw materials instead of typically used gas-atomized powders to fabricate parts in the L-PBF process at high energy densities.
Recommended Citation
Irrinki, Harish, "Mechanical properties and microstructure evolution of 17-4 PH stainless steel processed by laser-powered bed fusion." (2016). Electronic Theses and Dissertations. Paper 2408.
https://doi.org/10.18297/etd/2408
