ABSTRACT Strain-rate sensitivity (SRS) of high-Mn austenitic steels at the micrometric scale was investigated. Compressive-deformation response of TWIP steel micropillars demonstrated negative SRS between 1×10−4 and 1 s−1 strain rates, which was terminated by the formation of nanotwins that significantly enhance the work-hardening capacity at 1 s−1.

中文翻译：

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通过在 TWIP 钢微柱中形成纳米孪晶来终止负应变率敏感性

摘要 在微米尺度上研究了高锰奥氏体钢的应变率敏感性 (SRS)。TWIP 钢微柱的压缩变形响应在 1×10-4 和 1 s-1 应变速率之间显示出负 SRS，这通过形成纳米孪晶而终止，纳米孪晶的形成显着提高了 1 s-1 的加工硬化能力。