Improvement of densification and microstructure of ASTM A131 EH36 steel samples additively manufactured via selective laser melting with varying laser scanning speed and hatch spacing

• Main Authors: Wang, Jingjing, Wu, Wen Jin, Jing, Wei, Tan, Xipeng, Bi, Gui Jun, Tor, Shu Beng, Leong, Kah Fai, Chua, Chee Kai, Liu, Erjia
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Materials::Material testing and characterization; Engineering::Materials::Metallic materials; ASTM A131 (EH36) Steel; Selective Laser Melting
• Online Access: https://hdl.handle.net/10356/140649
• Institution: Nanyang Technological University

ASTM A131 (EH36 grade) steel samples with a high density (>99.5%) were additively manufactured through a selected laser melting (SLM) process. The additive manufacturing (AM) process parameters were optimized through tuning scanning speed from 100 to 300 mm/s and hatch spacing from 0.08 to 0.13 m...