• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Solidification and Gravity; 20040906-09; Miskolc-Lillafured(HU) >Modeling Microsegregation in Metal Alloys
【24h】

Modeling Microsegregation in Metal Alloys

机译：模拟金属合金中的微偏析

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

Direct simulations of solidification processes that account for all space and time scales are often beyond the reach of current computational power. To overcome this limitation micro-macro approaches that incorporate the effects of small-scale phenomena into large-scale process models have been developed. An important small-scale solidification phenomenon is microsegregation -the redistribution of rejected solute components at the scale of the solid crystal morphology. This paper outlines a general microsegregation model that not only accounts for many of the critical small-scale phenomena in alloy solidification but also well suited as the micro component of a micro-macro model of metal casting. In the development of this microsegregation model, particular emphasis and testing is placed on alternative treatments of modeling the micro-scale solute diffusion in the solid phase-the so-called "back-diffusion."
机译：考虑到所有时空尺度的凝固过程的直接模拟通常超出了当前计算能力的范围。为了克服该限制，已经开发了将微尺度现象的影响纳入大规模过程模型的微宏方法。一个重要的小规模固化现象是微偏析-排斥的溶质组分在固态晶体形态范围内的重新分布。本文概述了一种一般的微观偏析模型，该模型不仅解决了合金凝固过程中许多关键的小规模现象，而且也非常适合作为金属铸造宏观模型的微观成分。在这种微偏析模型的开发中，对固相中的微尺度溶质扩散进行建模的替代方法（即所谓的“反向扩散”）特别受重视和测试。

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