Abstract:
TA15 titanium alloy powder was prepared by electrode induction melting gas atomization(EIGA)process,and the oxygen content of the powder was tested by oxygen-nitrogen-hydrogen analyser,and the effects of vacuum degree of the equipment,pressure increase rate and gas temperature on the oxygen increment of TA15 powder were studied.The results show that effect on the oxygen increment of TA15 powder,the equipment pressure increase rate>equipment vacuum>screening gas temperature,when the equipment vacuum<10Pa,the pressure increase rate is 15Pa/h,and the gas temperature of the airflow machine is below 25℃,the oxygen increment of TA15 powder with particle size from 15μm to 53μm is 436ppm,and the oxygen content of the powder is 906ppm,which meets the requirements of TA15 powder for additive manufacturing.