INTERNATIONAL JOURNAL OF SCIENTIFIC DEVELOPMENT AND RESEARCH International Peer Reviewed & Refereed Journals, Open Access Journal ISSN Approved Journal No: 2455-2631 | Impact factor: 8.15 | ESTD Year: 2016
open access , Peer-reviewed, and Refereed Journals, Impact factor 8.15
Cast iron is a group of iron-carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impurities which allow cracks to pass straight through, grey cast iron has graphite flakes which deflect a passing crack and initiate countless new cracks as the material breaks, and ductile cast iron has spherical graphite "nodules" which stop the crack from further progressing. In this research work after the preparation of sample they are subjected for machined testing such as tensile and impact as per international standard. The prepared sample are further subjected for heat treatments such as hardening and tempering, annealing etc. And then followed by cooling and quenching. These heating treatment are done in order to analyses the mechanical properties and its behaviour. Austempering of the sample is done for certain time at a temperature of 500o C further more yielding and impact testing were also performed. Crack exterior of every method of processing, as-cast sample, later stress and collision test was analysed Scanning Electron Microscopy. Fracture toughness is at the highest for annealed sample while the annealing sample will have more ductility at the cost of toughness. The annealed sample which are obtained are ductile in nature while the annealed, toughened samples specimens have displayed the mixture of the failing.
Keywords:
As-cast ductile iron, Annealing, Hardening and Tempering, Microstructure, Tension test, Vickers hardness, Austenitizing temperature, Nodularity, Graphite Area Fraction
Cite Article:
"Study on Fractographic Property of Ductile Iron", International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, Vol.6, Issue 4, page no.705 - 709, April-2021, Available :http://www.ijsdr.org/papers/IJSDR2104118.pdf
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Publication Details:
Published Paper ID: IJSDR2104118
Registration ID:193208
Published In: Volume 6 Issue 4, April-2021
DOI (Digital Object Identifier):
Page No: 705 - 709
Publisher: IJSDR | www.ijsdr.org
ISSN Number: 2455-2631
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