Results show that the erosion of tungsten increases greatly if a little of oxygen is add in argon gas because tungsten on the surface of electrode reacts with oxygen to form tungsten oxide.

• 研究结果表明,有氧条件下钨电极的钨基体烧蚀大大增加,主要原因是在一定温度范围内发生了氧和钨的反应;