Thermomechanical Testing of GGG 40 Spheroidal Graphite Cast Iron Alloy

Abstract

See, stats, and : https : / / www. researchgate. net / publication / 315721876 Thermomechanical Spheroidal Working DOI : 10 . 4236 / msa . 2017 . 83019 CITATIONS 0 READS 35 3 : Some : development Development – Bainite (FB) dual View Marwan Ain1 SEE Eman - Shenawy Central 12 SEE Mohamed . Taha 53 SEE All . The . 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 elon - gated 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 .