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http://dx.doi.org/10.14775/ksmpe.2018.17.2.083

Evaluation of Microstructure and Mechanical Properties in 17-4PH Stainless Steels Fabricated by PBF and DED Processes  

Yoon, Jong-Cheon (Extreme fabrication technology R&D group, Korea Institute of Industrial Technology)
Lee, Min-Gyu (Extreme fabrication technology R&D group, Korea Institute of Industrial Technology)
Choi, Chang-Young (Extreme fabrication technology R&D group, Korea Institute of Industrial Technology)
Kim, Dong-Hyuk (Extreme fabrication technology R&D group, Korea Institute of Industrial Technology)
Jeong, Myeong-Sik (Extreme fabrication technology R&D group, Korea Institute of Industrial Technology)
Choi, Yong-Jin (Extreme fabrication technology R&D group, Korea Institute of Industrial Technology)
Kim, Da-Hye (Extreme fabrication technology R&D group, Korea Institute of Industrial Technology)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.17, no.2, 2018 , pp. 83-88 More about this Journal
Abstract
Additive manufacturing (AM) technologies have attracted wide attention as key technologies for the next industrial revolution. Among AM technologies using various materials, powder bed fusion (PBF) processes and direct energy deposition (DED) are representative of the metal 3-D printing process. Both of these processes have a common feature that the laser is used as a heat source to fabricate the 3-D shape through melting of the metal powder and solidification. However, the material properties of the deposited metals differ when produced by different process conditions and methods. 17-4 precipitation-hardening stainless steel (17-4PH SS) is widely used in the field of aircraft, chemical, and nuclear industries because of its good mechanical properties and excellent corrosion resistance. In this study, we investigated the differences in microstructure and mechanical properties of deposited 17-4PH SS by PBF and DED processes, including the heat treatment effect.
Keywords
Additive Manufacturing; Metal 3D Printing; Microstructure; 17-4PH stainless steel;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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