Hot deformation behavior of Cu-bearing antibacterial titanium alloy

被引：0

作者：

Zheng Ma ^{[1
,2
]}

Ling Ren ^{[1
]}

MBabar Shahzad ^{[1
]}

Rui Liu ^{[1
]}

Ying Zhao ^{[2
]}

Ke Yang ^{[1
]}

机构：

[1] Institute of Metal Research, Chinese Academy of Sciences

[2] Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Science

来源：

Journal of Materials Science & Technology | 2018年 / 34卷 / 10期

关键词：

Cu-bearing titanium alloy; Constitutive equation; Thermal deformation; Microstructure; Processing map;

D O I：

暂无

中图分类号：

TG146.23 [];

学科分类号：

080502 ;

摘要：

We investigated the deformation behavior of a new biomedical Cu-bearing titanium alloy(Ti-645（Ti-6.06 A1-3.75 V-4.85 Cu, in wt%）) to optimize its microstructure control and the hot-working process. The results showed that true stress-true strain curve of Ti-645 alloy was susceptible to both deformation temperature and strain rate. The microstructure of Ti-645 alloy was significantly changed from equiaxed grain to acicular one with the deformation temperature while a notable decrease in grain size was recorded as well. Dynamic recovery（DRV） and dynamic recrystallization（DRX） obviously existed during the thermal compression of Ti-645 alloy. The apparent activation energies in（α+β） phase and β single phase regions were calculated to be 495.21 kJ mol-1 and 195.69 kJ mol-1, respectively. The processing map showed that the alloy had a large hot-working region whereas the optimum window occurred in the strain rate range of 0.001-0.1 s-1, and temperature range of 900-960℃ and 1000-1050℃. The obtained results could provide a technological basis for the design of hot working procedure of Ti-645 alloy to optimize the material design and widen the potential application of Ti-645 alloy in clinic.

引用

页码：1867 / 1875

页数：9