The variation of microstructure and mechanical properties of the welding heat-affected zone of 2090 Al-Li alloy were investigated by means of the welding thermal, simulated and strain cycles test.

采用焊接热模拟试验方法研究了在焊接热循环和应力-应变循环同时作用下，2090铝锂合金焊接热影响区显微组织和力学性能的变化特征。

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The fluid action in the ductile shear zone is a complicated tectonic physochemic al process coupled with the mechanic and chemical process, and is also a self_or ganizing process.

韧性剪切带内的流体作用是一个复杂的构造物理化学过程和力学-化学的耦合过程。

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Microstructure and mechanical properties changing rules of 2219 Al-alloy HAZ (heat-affected zone) with twin wire welding were studied using welding thermal simulation method.

采用焊接热模拟试验方法研究了2219铝合金双丝焊热影响区的微观结构和力学性能的变化规律。

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