CADI Material |
Author(s): |
| Sumit Shrikrishna Palkar , Government Engineering College Aurangabad.; Dr. Sunil A. Patil, Government Engineering College Aurangabad. |
Keywords: |
| Austempering, Carbidic Austempered Ductile Iron, Microstructure, Optical microscope, SEM, Surface Roughness |
Abstract |
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The surface finish of ductile cast iron is improved by the incorporation of an extra phase in the matrix, typically consist of carbides. The objective of the present work is to produce carbides in a ductile cast iron which is subsequently austempered, to obtain the carbidic austempered ductile iron (CADI). Six variants of CADI were produced by heating carbidic ductile iron (CDI) to a austenitization temperature of 975ºC for the period of 1hr and quenching in salt bath at temperature 325ºC and at 250ºC for a period of 1hr, 2hr and 3hr. The surface grinding was done on six CADI samples with two different specification grinding wheels. The surface roughness was evaluated by testing with Mitutoyo Surftest SJ-210 in accordance with ISO 1997 standard. Heat treatment parameters affect the microstructure of the carbidic austempered ductile iron which can be characterized by optical microscope and SEM. |
Other Details |
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Paper ID: IJSRDV4I60286 Published in: Volume : 4, Issue : 6 Publication Date: 01/09/2016 Page(s): 546-551 |
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