Abstract
The present work investigated the surface irradiation and remelting effects of Ti3AlC2 ceramics by electron beam surface remelting (EBSR). The effects of electron beam current and irradiation times on the microstructure and thickness of the irradiated layer on Ti3AlC2 were studied. The original coarse lamellar Ti3AlC2 grains were refined and a graded structure consisting of remelted layer and heat-affected zone was formed on the surface of Ti3AlC2 matrix. Near-spherical TiC particles with diameters of 300 nm were obtained in the remelted layer. Vickers hardness of more than 21 GPa was achieved in the EBSR-treated Ti3AlC2 ceramics, which could be attributed to the formation of TiC particles coupled with crystallite refinement. This work provides a simple and low-cost route for surface hardening of structural ceramic materials.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
