• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International conference on semi-solid processing of alloys and composites >Effects of Grain Refiner on the Microstructural Evolution During Making Semi-Solid Slurry of the A357 Alloy
【24h】

Effects of Grain Refiner on the Microstructural Evolution During Making Semi-Solid Slurry of the A357 Alloy

机译：晶粒细化剂对A357合金半固态浆料制备过程中微观组织演变的影响

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The enthalpy equilibration method is a novel technique to produce globular grain structure in semi-solid slurry preparation. In this process, the liquid is firstly poured into a metallic crucible, which possesses low thermal conductivity and high thermal capacity. Homogeneous distribution of temperature within the metallic crucible is achieved by rotating the crucible and cold down to a temperature between liquidus and solidus, determined by the requirement of solid fraction. The semi-solid slurry is then transferred to a high pressure die caster. In order to achieve a spherical microstructure morphologies in the entire slurry, effects of grain refiners, in addition to the enthalpy equilibration method, on the microstructure of the slurries of A357 alloy were investigated. Quantitative metallographic measurements were applied to evaluate microstructural evolution and processing parameters were optimized.
机译：焓平衡法是一种在半固体浆料制备中产生球状晶粒结构的新技术。在该过程中，首先将液体倒入具有低导热率和高热容量的金属坩埚中。金属坩埚内温度的均匀分布是通过将坩埚旋转并冷却至液相线和固相线之间的温度来实现的，该温度取决于固体分数的要求。然后将半固体浆料转移到高压压铸机中。为了在整个浆料中获得球形的微观结构形态，除了焓平衡方法外，还研究了晶粒细化剂对A357合金浆料的微观结构的影响。定量金相测量被​​应用于评估组织演变，并优化了工艺参数。

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