<strong>TC2</strong>钛合金的动态力学特征及其本构模型

TC2钛合金的动态力学特征及其本构模型

苏楠, 陈明和, 谢兰生, 罗峰, 史文祥

Dynamic Mechanical Characteristics and Constitutive Model of TC2 Ti-alloy

SU Nan, CHEN Minghe, XIE Lansheng, LUO Feng, SHI Wenxiang

表2 TC2钛合金在高应变率下的性能参数

Table 2 Performance parameters of TC2 titanium alloy at different strain rates

Strain rate /s^-1	Yield strength, $σ_{0.2}$ /MPa	Ultimate strength, $σ_{b}$ /MPa	Maximum strain, $ε_{m a x}$
0.001	703.6	899.2	0.170
0.01	762.9	906.4	0.154
0.1	790.4	944.7	0.142
1	803.2	913.7	0.128
1100	658.3	1148.3	0.079
1900	693.8	1285.9	0.137
2500	759.8	1378.1	0.182
3500	809.1	1434.9	0.242
4200	880.3	1457.1	0.289
4800	903.5	1473.6	0.309
5400	925.5	1500.1	0.309
6000	942.3	1504.7	0.312