Abstract—The deformation behavior and structure of 16.5Cr–18.8Mn–0.53N–0.07C steel deformed by tension in the temperature range from –196 to + 20°С have been investigated. A stage with a constant strain-hardening rate has been shown to be present in the temperature range –65 < t ≤ 20°C, which at –65 < t < 0°C is periodically interrupted by the parabolic hardening stage. Multiple strain localization has been observed in the samples at test temperatures of –65 < t < 0°С. There is γ → ε-transformation in steel at all deformation temperatures. Its contribution to the total ductility of steel increases as the test temperature decreases. Tension tests of steel at –196°C has resulted in γ → ε → α' transformation at the strain localization stage.

摘要—研究了​​在–196至+ 20°С温度范围内受拉变形的16.5Cr–18.8Mn–0.53N–0.07C钢的变形行为和组织。以恒定应变硬化率A阶段已经显示存在于温度范围为-65 <吨≤20℃，这在-65 <吨<0℃下被抛物面硬化阶段周期性地中断。在–65 < t <0°С的测试温度下，样品中观察到了多个应变局部化。有γ→ε -在所有变形温度下钢的相变。随着测试温度的降低，其对钢总延展性的贡献增加。钢在–196°C的拉伸试验在应变局部化阶段导致γ→ε→α'相变。