α-钛合金TA6的动态力学性能和剪切现象分析

【作者】 张磊； 胡时胜； 吴家俊；

【Author】 (CAS Key Laboratory of Mechanical Behavior and Design of Materials, USTC, Hefei,230026)

【机构】 中国科学技术大学中科院材料力学行为和设计重点实验室；

【摘要】 本文利用分离式的Hopkinson压杆和反射式Hopkinson拉杆对α-钛合金TA6的动态力学性能进行研究,并对拉伸时出现45度断口的现象做了金相分析。分析结果表明:α-钛合金TA6不同于β型和(α+β)型的钛合金,α-钛合金TA6是一种绝热剪切不敏感的材料,而β型和(α+β)型的钛合金是一种绝热剪切敏感的材料。更多还原

【Abstract】 The dynamic mechanics performance about TA-6 of α-Titanium alloy have been investigated by split Hopkinson pressure bar and split Hopkinson tensile bar of reflective type. The microstructure for the 45-degree tensile fracture was examined by Metallographic analysis also. The results indicate that TA-6 of α-Titanium alloy is different from β and (α+β)-Titanium alloy because TA-6 of α-Titanium alloy is not sensitive to adiabatic shear while β and (α+β)-Titanium alloy are sensitive to adiabatic shear.更多还原