典型文献
Solidification structure simulation and casting process optimization of GCr15 bloom alloy
文献摘要：
Based on the solidification heat transfer model and CAFé model, the solidification structure of GCr15 bloom alloy was studied. Using nail shooting and acid etching experiments, the solidification models were verified. The secondary dendrite arm spacing (SDAS) model of GCr15 was obtained by simulation calculation and metallographic observation. With the increase of casting speed, the SDAS, equiaxed crystal ratio (ECR) and average grain size increase. With the rise of superheat, the SDAS increases in the 20-70 mm of thickness and decreases in the 80-160 mm of thickness. The ECR decreases and the average grain size increases with the increase of superheat. With the increase of specific water flow, both the SDAS and ECR decrease. The minimum average grain size is obtained when the specific water flow is 0.20 L·kg-1. The central carbon segregation index is reduced from 1.11 to 1.075.
文献关键词：
中图分类号：
作者姓名：
Jie Li;Hao-tian Wu;Yang Liu;Yan-hui Sun
作者机构：
Collaborative Innovation Center of Steel Technology,University of Science and Technology Beijing,Beijing 100083,China
文献出处：
引用格式：
[1]Jie Li;Hao-tian Wu;Yang Liu;Yan-hui Sun-.Solidification structure simulation and casting process optimization of GCr15 bloom alloy)[J].中国铸造,2022(01):63-74
A类：
B类：
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AB值：
0.495398
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