ECAP制备超细晶钛的力学性能研究  

Study on Mechanical Properties of Ultra-fine Grained Pure Ti Processed by ECAP

作　　者：王幸运[1] 赵西成[1] 杨西荣[1] 王成[1] 

机构地区：[1]西安建筑科技大学冶金工程学院,陕西西安710055

出　　处：《热加工工艺》2009年第10期10-11,15,共3页Hot Working Technology

基　　金：国家自然科学基金资助项目(50874086);陕西省教育厅专项科研计划项目(07JK307);西安建筑科技大学重大科技项目创新基金资助项目(ZX0506)

摘　　要：采用等径弯曲通道变形成功实现工业纯钛室温8道次变形。ECAP变形后,工业纯钛晶粒明显细化,力学性能显著提高,抗拉强度从407MPa提高到791MPa,并保持良好塑性,硬度最终达到2641MPa,成为高性能超细晶纯钛。Commercial pure Ti was processed by ECAP at room temperature for 8 passes. The results show that, after ECAP deformation, the grain size is obviously refined, the mechanical properties significantly improve. The tensile strength increases from 407 MPa to 791 MPa, and maintains good plasticity. The microhardness is up to 2641 MPa fmally, which becomes high-performance ultra-fine grained pure titanium.

关 键 词：等通道弯曲挤压(ECAP) 工业纯钛 力学性能 

分 类 号：TG146.23[一般工业技术—材料科学与工程]