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Изучение влияния механических напряжений на диффузию в пластине с покрытием

Изучение влияния механических напряжений на диффузию в пластине с покрытием

Abstract

Two basic mechanisms of stress influence on the solid phase diffusion are revealed and analyzed. On the base of the analysis of presented mathematical model, the conclusion is formulated that only one of mechanisms works at the condition of symmetry deposition of the coating. It was confirmed experimentally for the Ni (Cu) system as example. The experiment technique and its results are presented in this paper. The possible generalization of the model for structure heterogeneous material and the ways of next development of the model are described.

Проанализировано и выделено два основных механизма влияния поля напряжений на диффузию примеси в твердом теле. На основании анализа математической модели процесса сделан вывод о том, что в случае симметричного нанесения покрытия, по сути, работает только один из них. Вывод подтвержден экспериментально на примере системы Ni(Cu). Методика и результаты эксперимента изложены в работе наряду с результатами расчета. Описаны некоторые возможные обобщения диффузионной модели для структурно-неоднородной среды.

Keywords

ДИФФУЗИЯ, НАПРЯЖЕНИЯ, ВНЕШНЕЕ НАГРУЖЕНИЕ, МОДЕЛИРОВАНИЕ, ЭКСПЕРИМЕНТ, СТРУКТУРНО-НЕОДНОРОДНАЯ СРЕДА

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
bronze