Paper Title:
New Application of High Niobium Cast Iron as a Grain Refiner for Stainless Steels
  Abstract

In order to develop a new application of cast iron, high niobium cast iron has been developed as a grain refiner for stainless steel. High niobium cast iron was prepared by adding pure niobium to a commercial cast iron. Coarse primary niobium carbide crystals were observed in the microstructure of the cast iron. The effect of the high niobium cast iron as an inoculant on the grain size of austenitic and ferritic stainless steels was examined in various experimental conditions. When the amount of the cast iron inoculant more than 3 mass% was added into the steel melt, fine equiaxed grains were observed and grain size was significantly reduced to 210 μm. The results indicate that the high niobium cast iron is effective as a grain refiner for the austenitic and ferritic stainless steels. From the dissolution rate measurement, the grain refining mechanism was proposed.

  Info
Periodical
Edited by
Adel Nofal and Mohamed Waly
Pages
447-452
DOI
10.4028/www.scientific.net/KEM.457.447
Citation
H. Sakaki, M. Mizumoto, T. Ohgai, A. Kagawa, "New Application of High Niobium Cast Iron as a Grain Refiner for Stainless Steels", Key Engineering Materials, Vol. 457, pp. 447-452, 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: J. Kamran, M. Sarwar, M. Feroz
Abstract:Shrinkage cavity/piping at the end of the solidified ingot of steels is one of the most common casting problem in 316L austenitic stainless...
59
Authors: Bin Wang, Ming Li Sun, Qiang Wei
Abstract:A pulsed magnetic field (PMF) was introduced into the solidification of pure magnesium and the effect of structure refinement is...
46
Authors: Wen Zhong Jin, Wei Zhang, Ting Ju Li, Guo Mao Yin
Abstract:The effects of rotating electromagnetic stirring and inoculants on the solidification structures and properties of IN100 superalloy vacuum...
3789
Authors: Bin Wang, Ming Li Sun, Jing De Chen, Yong Bin Wei
Abstract:The effects of pulsed magnetic field on the solidified structure of pure Mg were investigated. Fine uniform equiaxed grains are acquired in...
3964
Authors: Bao Mian Li, Hai Tao Zhang, Jian Zhong Cui
Abstract:The effect of cooling rate and iron content on the solidification structures of copper-iron alloys had been investigated in this paper. The...
89