Fabrication and Characterization of AISI 420 Stainless Steel Using Selective Laser Melting

Autor:	Luo Xiwang, Shifeng Wen, Yusheng Shi, Liu Ying, Xiao Zhao, Qingsong Wei, Bo Song
Rok vydání:	2015
Předmět:	Fabrication Materials science Scanning electron microscope Mechanical Engineering Metallurgy Microstructure medicine.disease_cause Industrial and Manufacturing Engineering Rockwell scale Mechanics of Materials Phase (matter) Mold medicine Relative density General Materials Science Selective laser melting
Zdroj:	Materials and Manufacturing Processes. 30:1283-1289
ISSN:	1532-2475 1042-6914
Popis:	Selective laser melting (SLM) offers great possibilities to fabricate metal tools with a complex geometry, but there are limitations regarding some materials. This work focuses on the fabrication of AISI 420 stainless steel using SLM for the application of plastic injection mold. The melt characteristic of the powders was firstly concluded, and then the microstructure, phase composition, and hardness were characterized using scanning electron microscopy, X-ray diffraction, and Rockwell hardness test, respectively. The results showed that cellular microstructure was observed along the direction of the maximum heat flow. The proportion of the phases varies with the change of SLM processing parameters, which directly affects on the hardness of the parts. The relative density over 99% was obtained and the highest hardness presents 50.7 HRC, which meets the requirement of plastic injection molding application.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b893599ba93ff9a90b024cff6478450e https://doi.org/10.1080/10426914.2015.1026351 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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