综述了工业用纯钛(CP-Ti)大塑性变形技术的等径角挤压工艺,主要集中在等径角挤压参数的影响,包括通道角和曲率角、挤压路径、挤压温度、挤压速度、内部产热、挤压道次和背压。为了获得CP-Ti的最大均匀性、晶粒细化和提高力学性能,对不同等径角挤压CP-Ti进行了表征,如显微组织、应力不均匀性和力学性能。研究表明,在挤压温度为450°C,挤压速度为1~3 mm/s,挤压路径为BC,加载背压,通道角和曲率角分别为90°和20°的条件下能获得最均匀的超细组织。 The isopipe angle extrusion process of CP-Ti plastic deformation technology is reviewed. The effects of isopipe angle extrusion parameters such as channel angle and curvature angle, extrusion path, extrusion temperature, Extrusion speed, internal heat production, extrusion pass and back pressure. In order to obtain the maximum CP-Ti uniformity, grain refinement and mechanical properties, CP-Ti was characterized by different isocenter angular pressing, such as microstructure, stress non-uniformity and mechanical properties. The results show that under the conditions of extrusion temperature of 450 ° C, extrusion speed of 1 ~ 3 mm / s, extrusion path of BC, back pressure applied, channel angle and curvature angle of 90 ° and 20 °, respectively The most uniform ultrafine tissue.