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本文研究了两种晶粒组织的二元 Al-Li 合金拉伸性能与断裂行为。结果表明 Al-Li 合金力学性能与晶粒尺寸有关,其断裂行为决定于 PFZ 内平面滑移或晶界沉淀相与滑移的交互作用。
In this paper, the tensile properties and fracture behavior of binary Al-Li alloys with two kinds of grain structure were studied. The results show that the mechanical properties of the Al-Li alloy are related to the grain size. The fracture behavior of the Al-Li alloy is determined by the interaction between the plane slip in the PFZ and the precipitates and slippage in the grain boundary.