Materials Sciences and Applications

Volume 8, Issue 3 (March 2017)

ISSN Print: 2153-117X   ISSN Online: 2153-1188

Google-based Impact Factor: 1.67  Citations  h5-index & Ranking

Thermomechanical Testing of GGG 40 Spheroidal Graphite Cast Iron Alloy

HTML  XML Download Download as PDF (Size: 1334KB)  PP. 273-280  
DOI: 10.4236/msa.2017.83019    1,585 Downloads   2,601 Views  Citations

ABSTRACT

Spheroidal graphite cast iron GGG 40 was thermo-mechanically tested using thermo-mechanical simulator Gleeble-3500. Three deformation steps were successively applied on test-specimen at temperatures namely; 900°C, 850°C and 750°C within the austenitic zone, at the same strain rate of 0.1 s-1. No cracks were observed, up to 50% deformation, after successive deformation steps. Stress-strain relationship obtained is correlated with previous work on SGCI with a different carbon equivalent. It was found that by decreasing the deformation temperature; for the same CE, young’s modulus, yield strength and strain hardening exponent increase. Microstructure of the deformed zone, for a specimen quenched after the final deformation step, reveals fine elongated ferrite and pearlite, as well as elongated graphite. While microstructure of the non-deformed zone subjected to the same treatment, includes coarser ferrite and pearlite with graphite spheres embedded in the matrix.

Share and Cite:

Faisal, M. , El-Shenawy, E. and Taha, M. (2017) Thermomechanical Testing of GGG 40 Spheroidal Graphite Cast Iron Alloy. Materials Sciences and Applications, 8, 273-280. doi: 10.4236/msa.2017.83019.

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.