【摘要】 研究了1Cr18Ni9Ti不锈钢半固态浆料的制备和轧制规律,结果表明:在本实验条件下,当搅拌时间为2—3 min时,可以获得尺寸大小为100一200μm、固相率为50％-60％的球状初生奥氏体的半固态浆料,便于从搅拌室底孔中放出,浆料可以实现顺利轧制,但球状初生固相颗粒与液相发生了分离,球状初生固相颗粒集中在轧材的心部,而液相偏聚在轧材的四周;经过一道次轧制, 1Cr18Ni9Ti不锈钢半固态浆料轧制板材的常温强度比常规热轧板材的强度高,但延伸率下降.更多还原

【Abstract】 The experiments of the nondendritic semi-solid slurry preparation of 1Cr18Ni9Ti stainless steel show that when stirred for 2-3 min under the test conditon, the semi-solid slurry with 50%-60% fraction solid and spherical primary austenite in the size range of 100-200um can be obtained and is easy to be discharged from the bottom little hole of the stirring chamber. The nondendritic slurry can be rolled into given plate form successfully, but the solid phase and liquid phase are separated in rolling process so that the solid primary austenitic grains are concentrated in the center and the residual liquid is near the edge of the rolled plate. The strength of the plate rolled only once with semi-solid slurry are higher than that of the traditionally hot-rolled plate of 1Cr18Ni9Ti stainless steel, but the elongation is lower.更多还原