Comparative study of laser surface hardening of 50CrMo4 steel using continuous-wave laser and pulsed lasers with ms, ns, ps and fs pulse duration

• Main Authors: Maharjan, Niroj, Zhou, Wei, Zhou, Yu, Guan, Yingchun, Wu, Naien
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: Laser Hardening; Pulsed Laser; DRNTU::Engineering::Manufacturing
• Online Access: https://hdl.handle.net/10356/103419; http://hdl.handle.net/10220/48253
• Institution: Nanyang Technological University

Laser surface hardening, used to achieve hardened surface without affecting bulk properties of steels, generally employs continuous-wave laser to do the job. The purpose of this paper is to systematically investigate the use of different pulsed lasers for surface hardening of 50CrMo4 steel. A contin...