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首页> 外文期刊>Scripta materialia >The determining role of reversed austenite in enhancing toughness of a novel ultra-low carbon medium manganese high strength steel
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The determining role of reversed austenite in enhancing toughness of a novel ultra-low carbon medium manganese high strength steel

机译：反向奥氏体对提高新型超低碳中锰高强度钢韧性的确定作用

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The ultra-low carbon medium Mn steel was subjected to quenching and intercritical tempering process. The 650 degrees C tempering route led to 15% volume fraction of austenite with combination of high yield strength of 650 MPa, low yield ratio of 0.86, and excellent elongation of similar to 31%. The impact energy at similar to 20 degrees C was enhanced more than twenty times from 10 J to 213 J. The formation of reversed transformation austenite during the intercritical tempering process contributed to the observed superior mechanical properties. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
机译：对超低碳中锰钢进行淬火和临界回火。 650℃的回火路线导致奥氏体的体积分数为15％，同时具有650 MPa的高屈服强度，0.86的低屈强比和类似于31％的优良伸长率。从10 J到213 J，类似于20摄氏度的冲击能量提高了20倍以上。在临界回火过程中形成逆相变奥氏体有助于观察到优越的机械性能。 （C）2015 Acta Materialia Inc.，由Elsevier Ltd.发行。保留所有权利。

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