Effect of laser hardening on the mechanical, tribological and corrosion properties of low alloy steels

This research focuses on studying the mechanical, tribological, and corrosion behaviors of alloy steels: AISI 4340, 5140, 8620 by laser hardening, respectively. In light tests which have been carried out meticulously, it is concluded that optimum hardening parameter for all steel grades 4 mm/s scanning speed 1300?C surface temperature. Micro-structural changes, Vickers hardness as mechanical properties, tribological properties with reciprocating wear out. Furthermore, conducted. The test results reveal maximum appears 50-300 ?m below laser-hardened steels. addition, this study finds resistance enhanced implementation hardening. also determines has a positive impact lifting behavior 4340 steel. Conversely, were reduced nearly 54.17%.