Al-3.36wt-%Mg 合金在中温下的循环蠕变实验结果表明,在一定的温度和应力范围内,循环蠕变的第一和第二阶段都有应变突发发生,且这类应变突发具有明显的周期性,是动态应变时效的结果。根据McCormick 提出的位错与溶质原子交互作用模型,讨论了应变突发时的位错运动机制,从而说明了应变突发周期随应变速率单调变化的规律。
The phenomena of strain bursts have been studied in an Al-3.36 wt-%Mgsolid solution alloy during cyclic creep at intermediate temperature.The strain bursts of thisalloy occurring only at the certain cyclic stress and test temperature are different form th
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