Abstract

This work has determined the peculiarities of structure and phase transformations at various initial temperatures (–129…548°С) and high deformation rates (448–530 m/s) of shock-wave loading in the austenitic nitrogen-containing steel KH20N6G11M2AFB (0.4N–20Сr–6Ni–11Mn–2Mo–V–Nb). The cyclic γ → ε → γ transformation is observed in the course of shock-wave loading at 20–203°С, which causes the phase naklep of austenite and the possible occurrence of the shape memory effect in the regions of deformation localization.

中文翻译：

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冲击波载荷温度对含氮奥氏体Cr-Mn-Ni钢结构和相变的影响

摘要

这项工作确定了奥氏体含氮钢KH20N6G11M2AFB在各种初始温度（–129…548°С）和冲击波载荷的高变形率（448–530 m / s）下的结构和相变的特殊性（0.4 N–20Сr–6Ni–11Mn–2Mo–V–Nb）。在20–203°С的冲击波载荷过程中观察到循环的γ→ε→γ转变，这会导致奥氏体的相变，并可能在变形局部化区域中发生形状记忆效应。