基于晶体塑性模型预测<strong>TA32</strong>钛合金损伤及高温成形极限

基于晶体塑性模型预测TA32钛合金损伤及高温成形极限

范荣磊, 陈明和, 吴迪鹏, 武永

Prediction of Damage and Hot Forming Limit of TA32 Titanium Alloy Based on Crystal Plasticity Model

FAN Ronglei, CHEN Minghe, WU Dipeng, WU Yong

表1 钛合金中α相和β相的物理参数^[23,24]

Table 1 Physical parameters of α and β phases in titanium alloy^[23,24]

Phase	μ₀ / GPa	T_M / K	$\frac{T_{M}}{μ_{0}} \frac{d μ}{d T}$	Elastic constant at room temperature / GPa
Phase	μ₀ / GPa	T_M / K	$\frac{T_{M}}{μ_{0}} \frac{d μ}{d T}$	C₁₁	C₁₂	C₁₃	C₃₃	C₄₄
α	43.6	1933	-1.2	141.0	76.9	57.9	163.0	48.7
β	20.5	1933	-0.5	135.0	113.0	-	-	54.9