Abstract

Analysis of the development of deformations under pulsed loading has shown the decisive role of powerful ultrasonic vibrations of a sample in the standing wave mode. The effect of mass transfer of atoms and ultrafine particles of the hardening phase from the matrix material to the spall damage zone on the microstructure of deformation bands is determined. Rapid cooling of the metal inside the localization bands, the size of which does not exceed several tens of microns, indicates that changes in the phase composition are caused by cold deformation.

中文翻译：

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脉冲载荷下伴随塑性应变局部化的物理化学过程

摘要

对脉冲载荷下变形发展的分析表明，驻波模式下样品强大的超声振动具有决定性的作用。确定了原子和硬化相超细颗粒从基体材料到剥落破坏区的质量转移对形变带微观结构的影响。定位带内金属的快速冷却（其大小不超过几十微米）表明，相成分的变化是由冷变形引起的。