Paper Title:
Influence of Magnetic Field on the Mechanical Properties of Austempered Ductile Iron (ADI)
  Abstract

A novel concept of two-step austempering in a magnetic field has been conceived by this investigator. This twostep process involves first quenching the alloy to a lower temperature after austenitizing and then immediately rising the temperature of the quenching media to a higher temperature and the whole austempering process is carried out in the presence of a high magnetic field. In this investigation, Austempered Ductile Iron (ADI) was processed by this novel two-step austempering process in a high magnetic field of 20 Tesla. The microstructure and the mechanical properties of the ADI processed in a magnetic field has been characterized and compared with ADI processed by conventional process. The results of this investigation indicate significant improvement in the mechanical properties of ADI when Austempered in a high magnetic field. Both yield and tensile strengths were higher in the samples processed in the presence of a magnetic field. Very fine grain ferrite and austenite was obtained in the microstructure. The ferrite content was also significantly higher.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
4657-4662
DOI
10.4028/www.scientific.net/MSF.539-543.4657
Citation
S. K. Putatunda, "Influence of Magnetic Field on the Mechanical Properties of Austempered Ductile Iron (ADI)", Materials Science Forum, Vols. 539-543, pp. 4657-4662, 2007
Online since
March 2007
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: Bokkyu Lim, Young Woo Choi
Abstract:Single phase bainite structure which is obtained by the conventional austempering treatment reduces the ductility of ductile cast iron....
295
Authors: Sasan Yazdani, Amir Sadighzadeh Benam, Behzad Avishan
Abstract:Ductile irons with chemical compositions of Fe-3.6%C-2.6%Si-0.50%Cu-0.51%Ni were cast into standard keel blocks. Austenitizing heat treatment...
493
Authors: Amir Abedi, S.P.H. Marashi, K. Sohrabi, M. Marvastian, S.M.H. Mirbagheri
Abstract:In this investigation, the effect of heat treatment parameters on the microstructure and impact energy as a measure of toughness of the...
409
Authors: Bulan Abdullah, Siti Khadijah Alias, Ahmed Jaffar, Farisol Abd Rahim, Abdullah Ramli
Chapter 11: Materials Behavior
Abstract:The purpose of this research is to investigate the mechanical and corrosion characteristics of Ni-Cu alloyed Austempered Ductile Iron before...
3313
Authors: Bulan Abdullah, Siti Khadijah Alias, Ahmed Jaffar, Rashiddy Wong Freddawati, A. Ramli
Chapter 8: CAD/CAE/CAM
Abstract:The effect of different austempering holding times on the hardness and impact toughness of 0.254% niobium alloyed austempered ductile iron...
1768