摘自《Tool & Alloy Steels》,1990;24(9):293—302 高速工具钢超快速冷却可产生异乎寻常的显微组织,使钢材热处理后具有极好的组织和性能。这种冷却技术可使液体钢直接快速冷凝,冷却速度>10~6℃/s,而一般铸锭冷却速度仅为10～100℃/s。目前已开发出多种生产快速凝固材料的技术,其中有些技术是先获得粉末或微细颗粒材料,再加工成所需形状的钢材和工具。 Excerpt from “Tool & Alloy Steels”, 1990; 24 (9): 293-302. Ultra-fast cooling of high-speed tool steels produces an extraordinary microstructure that gives the steel excellent heat-treated microstructure and properties. This cooling technology allows the liquid steel to rapidly and rapidly condense at a cooling rate of> 10 to 6 ° C / s, whereas a typical ingot cooling rate is only 10 to 100 ° C / s. A number of technologies have been developed for the rapid solidification of materials, some of which are the first to obtain a powder or finely divided particulate material and then to the steel and tool of the desired shape.