About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
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Symposium
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Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
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Presentation Title |
Nano and Macro Mechanical Properties of Additively and Traditionally Manufactured 17-4 PH Stainless Steel |
Author(s) |
Hisham Abusalma, Mohammad Taregh Sepahi, Sandeep Khadka, Dana Ingalsbe, Natalia Esparragoza, Matthew Rosser, Xiaoqing Wang, Hamid Eisazadeh |
On-Site Speaker (Planned) |
Hamid Eisazadeh |
Abstract Scope |
17-4 PH, a martensite phase dominant precipitation hardened stainless steel, exhibits a unique combination of properties such as ultrahigh strength and excellent fracture toughness. However, these properties are influenced by manufacturing techniques and heat treatments. In this study, the mechanical properties of 17-4 PH stainless steel parts made by laser powder bed fusion additive manufacturing (L-PBF-AM) method and traditionally manufactured technique are investigated using various techniques. Heat treatment was also utilized to understand its impact on the performance of parts. Tensile test and nanoindentation method are used to extract hardness, Young’s modulus, and toughness in AM and machined specimens. Results indicated that Young’s modulus and hardness of as printed parts were lower to machined parts However, heat treatment increased these properties significantly. |