• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering. A, Structural Materials >Correlations between the calculated stacking fault energy and the plasticity mechanisms in Fe-Mn-C alloys
【24h】

Correlations between the calculated stacking fault energy and the plasticity mechanisms in Fe-Mn-C alloys

机译：Fe-Mn-C合金堆垛层错能与塑性机制的相关性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A model is proposed for the evaluation of the stacking fault energy (SFE) in Fe-Mn-C austenitic alloys, at different temperatures. It accounts for the variation of the Gibbs energy of each element during the austenite to ε martensite transformation, plus their interactions. The Gibbs energy due to the antiferromagnetic to paramagnetic transition is also taken into account. The required data have been obtained from the literature. The result shows a decrease of the SFE with temperature, with a saturation below the austenite Neel temperature. The result agrees with the mechanical and thermal martensitic transformation limits proposed by Schumann. The plasticity mechanisms depend on the SFE. The mechanical martensitic transformation occurs below 18mJ/m~2, and twinning between 12 and 35 mJ/m~2, in agreement with the tensile tests and the deformation microstructures observed in an Fe-22 wt.% Mn-0.6 wt.% C alloy at 77, 293 and 693 K.
机译：提出了一个模型，用于评估不同温度下Fe-Mn-C奥氏体合金的堆垛层错能（SFE）。它解释了奥氏体向ε马氏体转变过程中每个元素的吉布斯能量的变化及其相互作用。还考虑了由于反铁磁性到顺磁性的转变而产生的吉布斯能量。所需数据已从文献中获得。结果表明，SFE随温度降低而降低，其饱和度低于奥氏体Neel温度。结果与舒曼提出的机械和热马氏体转变极限一致。可塑性机制取决于SFE。机械马氏体转变发生在18mJ / m〜2以下，并且孪晶在12至35 mJ / m〜2之间，这与在Fe-22 wt。％Mn-0.6 wt。％C中观察到的拉伸试验和变形微观结构一致合金分别位于77、293和693 K.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号