The influence of oxygen content on powder metallurgy products and the progress of deoxidation methods
Powder metallurgy technology is a scientific technology manufacturing metal powders,alloy powders,non-metallic powders,compound powders,or materials or products made from these powders through forming and sintering.As the metal powder in the preparation process is easy to adsorb oxygen and oxidation,in the sintering process is not easy to fully deoxidise,and with the development and use of alloying elements,chemically active alloying elements are easy to combine with oxygen elements,increasing the difficulty of deoxidisation,so that powder metallurgy materials are prone to oxygen content exceeding the standard,which seriously affects the per-formance of powder metallurgy materials.This paper discusses the influence of oxygen content on the prepara-tion process and mechanical properties of various metals and alloys,and introduces the methods of controlling the oxygen content of some metals in the powder metallurgy process.It focuses on the research progress of oxy-gen content control of iron-based powder metallurgical materials,titanium and titanium alloy powder metallurgi-cal materials,copper alloys,refractory metal tungsten and molybdenum powder metallurgical materials,and sum-marises the current status of the research and looks forward to the development trend of its future.
NETL
NSTL
万方数据
