【摘要】 利用快速加热循环淬火对Ｔ１２钢的组织超细化进行了试验研究，试验表明：Ｔ１２钢经固溶处理及快速加热循环淬火２～３次后，可使其γ晶粒细化至１０μｍ以下，碳化物颗粒尺寸不足０．６０μｍ。更多还原

【Abstract】 Ultrafining treatment for structure of T12 steel by means of cyclic quenching have been investigated. The results show that the grain size of austenitic may be refined to less than 10μm and the size of carbide particles is less than 0.60 μm after 2～3 cycles of cyclic quenching in T12 steel.更多还原