In an original way, we exploit a restricted region within the dynamic strain ageing domain where a simultaneous increase in strength and uniform elongation has been shown, with increasing free solute concentrations. This unusual reverse dynamic strain ageing was shown to be a marker of the interaction between strain ageing and strain hardening. Analysis, based on a dual experimental and theoretical approach, shows that dynamic strain ageing reduces the ability of the material to exhibit dynamic recovery. This regime operates at very low solute concentrations and saturates above a critical solute concentration. All the results obtained support the dislocations/solutes interactions as the main mechanism.

中文翻译：

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核电站二回路焊缝碳锰钢焊接接头反向动态应变时效识别与分析

我们以一种原始的方式，利用动态应变时效域内的一个限制区域，随着游离溶质浓度的增加，强度和均匀伸长率同时增加。这种不寻常的反向动态应变时效被证明是应变时效和应变硬化之间相互作用的标志。基于双重实验和理论方法的分析表明，动态应变老化降低了材料表现出动态恢复的能力。该方案在非常低的溶质浓度下运行，并在高于临界溶质浓度时饱和。获得的所有结果都支持位错/溶质相互作用作为主要机制。