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采用自制的Ｈｏｐｋｉｎｓｏｎ 拉杆装置，在２０ ～１０３ｓ－１ 应变速率范围内研究了近全片层组织Ｔｉ４７Ａｌ２Ｍｎ２Ｎｂ０．８ＴｉＢ２合金的拉伸力学性能．发现动态强度明显高于静态强度， 前者与应变速率之间遵循线性关系，后者遵循半对数线性关系； 室温塑性随应变速率变化而波动， 变化范围不大．动态与静态断裂方式都以穿晶解理为主， 局部区域伴有沿晶开裂．
Tensile mechanical properties of Ti47Al2Mn2Nb0.8TiB2 alloys in the near-all-layer structure were studied by using self-made Hopkinson rod device in the range of 20 ~ 103s-1 strain rate. It is found that the dynamic strength is obviously higher than the static strength. The former follows a linear relationship with the strain rate, while the latter follows the semi-logarithmic linear relationship. The plasticity at room temperature fluctuates with the strain rate and does not change much. Dynamic and static fracture methods are mainly transcrystallization cleavage, along with the local area along the crystal cracking.