中国铸造2008，Vol.5Issue(1)：36-38,3.
Effects of slope plate variable and reheating on semi-solid structure of ductile cast iron
Effects of slope plate variable and reheating on semi-solid structure of ductile cast iron
M. Nili-Ahmadabadi 1F. Pahlevani 1P. Babaghorbani1
作者信息
- 1. School of Metallurgy and Materials Engineering, University of Tehran, Tehran, Iran
- 折叠
摘要
Abstract
Semi-solid metal casting and forming are known as a promising process for a wide range of metal alloys production. In spite of growing application of semi-solid processed light alloys, a few works have been reported about semi-solid processing of iron and steel. In this research inclined plate was used to change dendritic structure of iron to globular one. The effects of length and slope of plate on the casting structure were examined. The results show that the process can effectively change the dendritic structure to globular. In the slope plate angle of 7.5°and length of 560 mm with cooling rate of 67K·s-1 the optimum nodular graphite and solid globular particle were achieved.The results also show that by using slope plate inoculant fading can be prevented more easily since the total time of process is rather short.In addition, the semi-solid ductile cast iron prepared by inclined plate method, was reheated to examine the effect of reheating conditions on the microstructure and coarsening kinetics of the alloy. Solid fraction at different reheating temperatures and holding time was obtained and based on these results the optimum reheating temperature range was determined.关键词
ductile cast iron/ semi-solid/ reheating/ thixoformingKey words
ductile cast iron/ semi-solid/ reheating/ thixoforming分类
矿业与冶金引用本文复制引用
M. Nili-Ahmadabadi,F. Pahlevani,P. Babaghorbani..Effects of slope plate variable and reheating on semi-solid structure of ductile cast iron[J].中国铸造,2008,5(1):36-38,3.
