Magnetic, electric properties and hardness of 17-4 PH stainless steel fabricated by selective laser melting

This research examines 17-4 PH stainless steel (SS) samples fabricated by selective laser melting (SLM). The samples were built in vertical direction, and it was necessary to load powder three times. This made the process suspended and led to the changes in temperature conditions. Despite a continui...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1389; no. 1; pp. 12124 - 12130
Main Authors Stashkov, A, Schapova, E, Tsar'kova, T, Sazhina, E, Bychenok, V, Fedorov, A, Kaigorodov, A, Ezhov, I
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2019
Subjects
Electric properties
Heat treating
Heat treatment
Inhomogeneity
Laser beam melting
Magnetic properties
Martensitic stainless steels
Microhardness
Optical microscopy
Physics
Precipitation hardening steels
Rapid prototyping
Stainless steel
X-ray diffraction
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Summary:This research examines 17-4 PH stainless steel (SS) samples fabricated by selective laser melting (SLM). The samples were built in vertical direction, and it was necessary to load powder three times. This made the process suspended and led to the changes in temperature conditions. Despite a continuity of the samples, the samples were divided into three parts shared by visible interfaces. The samples were examined by optical microscopy and X-ray diffraction (XRD) analysis. The XRD data showed variations in phase compositions over the samples height. Magnetic and electric properties, hardness and microhardness of the samples in each parts were determined before and after the heat treatment (650 °C for 1 hour, cooling in a furnace). Obtained results show an inhomogeneity of properties over the samples height, but heat treatment led these properties to be uniformly distributed.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1389/1/012124