Selective Laser Melting of Commercially Pure Molybdenum by Laser Rescanning

被引：11

作者：

Alinejadian, Navid ^{[1
]}

Wang, Pei ^{[2
]}

Kollo, Lauri ^{[1
]}

Prashanth, Konda Gokuldoss ^{[1
,3
,4
]}

机构：

[1] Tallinn Univ Technol TalTech, Dept Mech & Ind Engn, Ehitajate Tee 5, EE-19086 Tallinn, Estonia

[2] Shenzhen Univ, Addit Mfg Inst, Shenzhen, Peoples R China

[3] Austrian Acad Sci, Erich Schmid Inst Mat Sci, Leoben, Austria

[4] Vellore Inst Technol, Sch Mech Engn, CBCMT, Vellore, Tamil Nadu, India

来源：

3D PRINTING AND ADDITIVE MANUFACTURING | 2023年 / 10卷 / 04期

关键词：

additive manufacturing; selective laser melting; molybdenum; porosity; properties; HIGH-STRENGTH; MECHANICAL-PROPERTIES; METALLIC COMPONENTS; SCANNING STRATEGIES; MICROSTRUCTURE; ALLOY; BEHAVIOR; CRACK; DENSIFICATION; FABRICATION;

D O I：

10.1089/3dp.2021.0265

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Commercially pure (cp) molybdenum (Mo) is one of the high-temperature materials of immense potential. It has a body-centered cubic (bcc) structure so it is hard to fabricate using nonequilibrium processes such as the selective laser melting (SLM) without the formation of cracks due to its inherent brittleness. This study deals with the fabrication of dense and near crack-free cp-Mo samples produced by the SLM. The laser scan strategy is adjusted from a single scan to a double scan to reduce the solidification cracks. Samples produced with a laser double scan strategy show a density of similar to 99% with a hardness of similar to 222 HV.

引用

页码：785 / 791

页数：7

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