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间隙原子(氧、氮、碳)对钼的脆性影响极为显著,在钼中合有微量的氧就足以使钼室温变脆.工业纯钼的脆性转变温度通常高于室温,这种行为限制了钼的应用范围,因此,研究改善钼脆性的途径具有实际意义。Belk指出:经过电子轰击区域提纯的铜,脆性转变温度可以降低到—180℃.Olds则系统地研究了不同合金元素对铸态钼范性的影响,指出加入Ti,Ce等脱氧剂可以降低
The effect of interstitial atoms (oxygen, nitrogen and carbon) on the brittleness of molybdenum is significant, and the presence of a trace amount of oxygen in the molybdenum is sufficient to make the molybdenum room temperature brittle. The brittle transition temperature of commercial pure molybdenum is generally above room temperature, The application of molybdenum, therefore, to study the ways to improve the brittleness of molybdenum is of practical significance. Belk pointed out that the brittle transition temperature can be reduced to -180 ℃ after the electron bombardment of pure copper.Olds systematically studied the effects of different alloying elements on the cast molybdenum content and pointed out that adding deoxidizer such as Ti and Ce can reduce