• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISIJ international >Improved Model Of Kinetics Of Strain Induced Precipitation And Microstructure Evolution Of Nb Microalloyed Steels During Multipass Rolling
【24h】

Improved Model Of Kinetics Of Strain Induced Precipitation And Microstructure Evolution Of Nb Microalloyed Steels During Multipass Rolling

机译：Nb微合金钢多道次轧制时应变诱发析出动力学和组织演变的改进模型

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

One of the main problems of empirical and semi-empirical models that are used to predict austenite microstructure evolution during hot rolling is their limited range of applicability regarding chemical compositions. This paper aims to improve a previous microstructural model paying special attention to the development of a more general equation for the prediction of the onset of strain induced precipitation in Nb microalloyed steels. This has been done with the help of new expressions describing the kinetics of strain induced precipitation as a function of the chemical composition. Moreover, the evolution of strain induced Nb precipitation was also modeled in order to determine the amount of Nb precipitated after each strain pass. The predictions obtained with the new model have been compared to results obtained in multipass laboratory tests using several Nb microalloyed steels. The model allows us to better understand the complex interactions occurring between Nb and microstructural softening depending on composition and process parameters.
机译：用于预测热轧过程中奥氏体微观结构演变的经验和半经验模型的主要问题之一是它们在化学组成方面的适用范围有限。本文旨在改进以前的微观结构模型，并特别注意开发一个更通用的方程式，以预测Nb微合金钢中应变诱发的析出开始。这是借助于新的表达式完成的，该表达式描述了应变诱导的沉淀动力学与化学组成的关系。此外，还对应变诱发的Nb沉淀的演化进行了建模，以确定每次应变通过后沉淀的Nb量。使用新模型获得的预测结果已与使用几种Nb微合金钢在多道次实验室测试中获得的结果进行了比较。该模型使我们能够更好地了解Nb和微结构软化之间发生的复杂相互作用，具体取决于成分和工艺参数。

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