冷轧工业纯钛的微观组织及力学性能  

Microstructures and mechanical properties of commercial purity Ti rolled at room temperature

作　　者：蒋建华[1] 丁毅[1] 单爱党[1] 

机构地区：[1]上海交通大学材料科学与工程学院,上海200240

出　　处：《中国有色金属学报》2010年第B10期58-61,共4页The Chinese Journal of Nonferrous Metals

摘　　要：通过异步和同步混合方式在室温下轧制TA2工业纯钛,获得的抗拉强度为960 MPa。轧制后材料的微观组织分析表明,经强烈塑性变形后材料仍然具有加工硬化的能力,能够通过变形强化进一步提高其强度。强度提高的主要原因是由于具有较高应变能的材料在进一步塑性变形时可能产生动态回复,从而改变其微观组织形貌。TA2 commercial purity Ti （CP-Ti） was asymmetrically and symmetrically rolled at room temperature. An ultimate tensile strength of 960 MPa is obtained. The microstructures of the rolled materials were investigated. The results show that the CP-Ti processed by severe plastic deformation still has ability for work hardening and can be strengthened again. The main reason of such strengthening probably caused by the variation of the microstructures results from the dynamic recovery occurred during further plastic deformation.

关 键 词：工业纯钛 强烈塑性变形 强度 加工硬化 

分 类 号：TF804.3[冶金工程—有色金属冶金]