Numerical modeling and experimental validation of microstructure in gray cast iron

作     者：Masoud Jabbari Parviz Davami Naser Varahram 

作者机构：Department of Mechanical EngineeringTechnical University of DenmarkKgs.Lyngby 2800Denmark Department of Materials Science and EngineeringSharif University of TechnologyTehran 11365Iran 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2012年第19卷第10期

页      面：908-914页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：financially supported by Razi Metallurgical Research Center(RMRC) for the advanced manufacturing and data acquisition system 

主　　题：cast iron cooling microstructure mechanical properties finite difference method 

摘      要：To predict the amount of different phases in gray cast iron by a finite difference model （FDM） on the basis of cooling rate （R）, the volume fractions of total y phase, graphite, and cementite were calculated. The results of phase composition were evaluated to find a proper correlation with cooling rate. More trials were carried out to find a good correlation between the hardness and phase composition. New proposed formulas show that the hardness of gray cast iron decreases as the amount of graphite phase increases, and increases as the amount of cementite inereases. The,qe fnrrnulas are develoned to correlate the nhase volume fraction to hardness. The results are compared with exverimental data and show reasonable agreement.