Paper Title:
Prediction of Microstructure and Porosity Formation of Practical Spheroidal Graphite Iron Castings
  Abstract

The mathematical model for microstructure formation and porosity prediction during solidification process of SG iron casting was established and applied to a practical brake housing casting. Quantitative microstructure analysis of specimens machined from the castings was compared with the simulation, and the two results are in acceptable agreement on nodule counts and size, pearlite fractions and hardness. It is indicated that the model can calculate the fraction of ferrite and pearlite more accurately, and specially can reflect the effect of both under-cooling during solidification and the nodules formed in eutectic period on the pearlite content. The present porosity prediction was compared with those of a former method and commercial software, which leads to that the current methods used for porosity prediction should be investigated and improved further.

  Info
Periodical
Edited by
Adel Nofal and Mohamed Waly
Pages
349-354
DOI
10.4028/www.scientific.net/KEM.457.349
Citation
H. D. Zhao, B. C. Liu, "Prediction of Microstructure and Porosity Formation of Practical Spheroidal Graphite Iron Castings", Key Engineering Materials, Vol. 457, pp. 349-354, 2011
Online since
December 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xiao Xian Ouyang, Hai Dong Zhao, Ke Wu Zhang, Yuan Yuan Li
Abstract:Microstructure and tensile properties of as-cast and T6-treated Al-4%Cu-3%Si alloy with different applied solidification pressures were...
593
Authors: Xiao Gang Diao, Zhi Liang Ning, Fu Yang Cao, Shan Zhi Ren, Jian Fei Sun
Abstract:Ductile iron, Heavy section, Cooling curve, Microstructure, Cooling rate. Abstract. Two 250×250×250 mm cubic ductile iron castings...
1020
Authors: Yeong Sant Kuo
Abstract:A201 aluminum alloy plate castings with systematic change in the riser size, together with variation of thickness and length, were cast in...
787
Authors: Hassan Jafari, Mohd Hasbullah Idris, Ali Ourdjini, Hamid Reza Bakhsheshi Rad, Seyed Sadegh Khayat Ardestani, Vali Ahmadshoar
Abstract:Due to its attractive characteristics, thin wall ductile iron (TWDI), has been increasingly considered as a preference for reducing material...
266
Authors: Hong Liang Zheng, Yu Cheng Sun, Ning Zhang, Kai Zhang, Xue Lei Tian
Abstract:Shrinkage porosity is often found in Spheroidal graphite iron (S. G. Iron) castings because of the mushy zone and special volume change...
190