METHOD FOR MANUFACTURING OXIDANT DISPERSION REINFORCING ALLOY CAPABLE OF EASILY ADJUSTING THE CONTENT OF OXYGEN BY REDUCING THE OXYGEN CONCENTRATION OF MECHANICAL-ALLOYED ALLOY POWDER

摘要

PURPOSE: A method for manufacturing oxidant dispersion reinforcing alloy is provided to adjust the content and the size of oxide precipitates in oxide dispersion reinforcing alloy by determining the oxygen concentration of mechanical-alloyed alloy powder according to various reduction conditions.;CONSTITUTION: A method for manufacturing oxidant dispersion reinforcing alloy includes the following: alloy composition powder is mechanical-alloyed(MA) to be pre-treated into MA alloy powder(10); the MA alloy powder is introduced into a container(20); the oxygen concentration of the MA alloy powder is adjusted(30); and the MA alloy powder of the adjusted oxygen concentration is post-treated(40). In the oxygen concentration adjusting process, at least part of oxygen contained in the MA alloy powder is reduced by introducing at least one of hydrogen gas, hydrogen mixed gas, or reducing gas.;COPYRIGHT KIPO 2012