• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Symposium on Superalloys 718, 625, 706 and Various Derivatives Jun 17-20, 2001 >GRAIN SIZE PREDICTION OF ALLOY 718 BILLET FORGED BY RADIAL FORGING MACHINE USING NUMERICAL AND PHYSICAL SIMULATION
【24h】

GRAIN SIZE PREDICTION OF ALLOY 718 BILLET FORGED BY RADIAL FORGING MACHINE USING NUMERICAL AND PHYSICAL SIMULATION

机译：基于数值和物理模拟的径向锻造机锻造718合金坯尺寸预测

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

Fine grains are required for Alloy 718 to obtain its high strength. Since grain size is strongly affected by forging conditions, many trial forgings are generally needed. On the other hand, grain size predictions by several simulations have been tried to reduce trial forgings. The purpose of this study is to predict grain size of Alloy 718 by combining a numerical simulation and a physical simulation. Firstly the transitions of temperature and strain of the forged material during hot forging were calculated by the 3-dimensional FEM. Secondly multi-stage plane strain compression tests using small test pieces were carried out by means of the Gleeble system according to the temperature and strain programs obtained by the numerical simulation, then the grain size was observed. These simulations were applied for predicting and refining the grain size of Alloy 718 billet forged by hydraulic 4-ram radial forging machine.
机译：718合金需要细晶粒才能获得高强度。由于晶粒尺寸受锻造条件的强烈影响，因此通常需要进行许多试锻。另一方面，已经尝试通过几种模拟对晶粒尺寸进行预测以减少试锻。这项研究的目的是通过组合数值模拟和物理模拟来预测718合金的晶粒尺寸。首先，通过三维有限元法计算了热锻过程中锻造材料的温度和应变的变化。其次，根据数值模拟得到的温度和应变程序，通过Gleeble系统进行了使用小试件的多阶段平面应变压缩试验，然后观察了晶粒尺寸。这些模拟被用于预测和细化由液压四柱塞径向锻造机锻造的718合金坯的晶粒尺寸。

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