前言近年来,通过粉末轧制直接制取金属薄板的研究进展很快,钛的粉末轧制也正在试验。粉末轧制法制取钛薄板比常规的熔炼—铸造—轧制工艺大为简化,并提高成品率,因此可望显著降低产品成本。据报导,粉末轧制的钛薄板机械性能大致与铸造材相当。有些作者认为,初始冷加工率必须限制在20%以内,随后的加工率可以更大些。有的资 Preface In recent years, the research on the direct preparation of sheet metal by powder rolling has progressed rapidly, and the rolling of titanium powder is undergoing tests. The powder rolling process makes it much easier to reduce the cost of a product than the conventional smelting-casting-rolling process and to increase the yield. It has been reported that the mechanical properties of powder-rolled titanium sheets are approximately equivalent to those of castings. Some authors believe that the initial cold working rate must be limited to less than 20%, followed by the processing rate can be greater. Some funding