Microstructure evolution and mechanical property response of TC11 titanium alloy under electroshock treatment

This work investigated the effects of electroshock treatment (EST) on microstructure variation and mechanical properties TC11 alloy. The average hardness specimens decreased from 358 HV to 328 after EST 0.04 s, then increased 396 0.06 s. After EST, yield strength specimen declined 959 MPa 797 1265 but fracture strain continuously. in was closely related phase transition secondary ? (?s) ? phase, precipitation refined needlelike martensite (?M). diffusion atoms accompanied by broaden ?s/? boundary 11.2 nm 27.6 due transformation s dislocation pileup at form defects, which resulted decrease strength. While increasing time width ?M/? 5.91 nm. All results indicated that is an effective method for optimizing titanium alloys a short time.