双相钛合金高温变形协调性的<strong>CPFEM</strong>研究

双相钛合金高温变形协调性的CPFEM研究

李学雄,徐东生,杨锐

Crystal Plasticity Finite Element Method Investigation of the High Temperature Deformation Consistency in Dual-Phase Titanium Alloy

Xuexiong LI,Dongsheng XU,Rui YANG

表1 Ti-6Al-4V晶体塑性本构模型参数(750 ℃)^{[24,25,26,27]}

Table 1 Crystal plasticity constitutive parameters of Ti-6Al-4V at 750 ℃^{[24,25,26,27]}

Phase	Slip system type	${\dot{γ}}_{0}$	n	q	h₀ / MPa	τ₀ / MPa	τ_s / MPa
α-Ti	<a>	0.001	6.25	1	120.0	8.2	18.0
α-Ti	<c+a>	0.001	6.25	1	120.0	82.0	180.0
β-Ti		0.001	12.5	1	143.1	84.3	96.5