Microstructure Evolution and Mechanical Properties of TiC Coating over Inconel 625 Obtained by Vacuum Electron Beam Surface Alloying

Inconel 625 nickel-base alloy was modified by electron beam surface alloying (EBSA) with TiC as the coating at different scanning speeds (80 mm/min, 100 and 120 mm/min). Its microstructure evolution friction wear were characterized using backscatter diffraction (EBSD), a microhardness tester, tester (RTEC). The results indicated that FCC phase in of is island-shaped after EBSA. At speeds, austenitic texture types will eventually form primarily S-texture accompanied Goss Brass varying strengths. With an increase speed, hardness alloys decreases. highest 457 HB 80 1.936 times higher than base material. resistance plates decreased gradually. speed volume rate lowest, which 0.9131 mm3 3.0437, respectively, 30.48%.