• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Proceeding amp; Manufacturing of Advanced Materials; 20060704-08; Vancouver(CA) >Recrystallization and Grain Growth during Alloy 718 Processing
【24h】

Recrystallization and Grain Growth during Alloy 718 Processing

机译：718合金加工过程中的再结晶和晶粒长大

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

In Alloy 718 ingot cogging process, dynamic and metadynamic recrystallizations, and static grain growth occur, and also the presence of δ phase plays a key role in controlling the grain size. In this study, the evolution of grain structure in VIM/VAR-processed Alloy 718 ingots during post-cogging heat treatments is dealt with. Compression tests were made on VIM/VAR-processed Alloy 718 ingot at temperatures between 900℃ ～ 1150℃. Heat treatments were made on the compression-tested specimens, and the variation of grain size was evaluated. Constitutive equations for the grain growth are established to represent the evolution of microstructures. Special attention is paid to the evolution of grain structure under the condition of dynamic and metadynamic recrystallizations, and grain growth. The grain growth rate depends mainly on the presence of 5-phase below the 5-solvus temperature, and on the difference in the grain boundary characteristics above it.
机译：在718合金铸锭的齿槽加工中，会发生动态和亚动态再结晶以及静态晶粒长大，并且δ相的存在在控制晶粒尺寸方面也起着关键作用。在这项研究中，处理了在后嵌齿热处理期间VIM / VAR处理的718合金锭的晶粒结构演变。在900℃〜1150℃的温度下对VIM / VAR处理的718合金铸锭进行压缩试验。在压缩测试的样品上进行热处理，并评估晶粒尺寸的变化。建立了晶粒长大的本构方程来表示微观结构的演变。在动态和超动态再结晶以及晶粒长大的条件下，要特别注意晶粒结构的演变。晶粒的生长速率主要取决于低于5固溶线温度的5相的存在，以及高于5相温度的晶界特性的差异。

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