本文研究了低铬—稀土白口铸铁抛丸叶片强韧化处理对性能的影响,试验表明,采取强韧化工艺比常规热处理淬火、回火后的冲击韧性有较大幅度的提高。同时,对析出的二次碳化物弥散分布亦有较大的改善。并对提高抛丸叶片寿命的途径,作了较详细的介绍和论述。 In this paper, the effect of strengthening and toughening of low chromium-rare earth white cast iron shot blasting blade on the properties was studied. The results show that the toughness of the quenched and tempered steel after quenching and tempering than the conventional heat treatment has been greatly improved. At the same time, the dispersion of precipitated secondary carbides have also been greatly improved. And to improve the life span of shot blasting ways, made a more detailed introduction and discussion.