![](/jspui/image/dspace_header.jpg)
Please use this identifier to cite or link to this item:
https://idr.l2.nitk.ac.in/jspui/handle/123456789/10274
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Rao, P.P. | - |
dc.contributor.author | Putatunda, S.K. | - |
dc.date.accessioned | 2020-03-31T08:18:50Z | - |
dc.date.available | 2020-03-31T08:18:50Z | - |
dc.date.issued | 1998 | - |
dc.identifier.citation | Materials Science and Technology, 1998, Vol.14, 12, pp.1257-1265 | en_US |
dc.identifier.uri | http://idr.nitk.ac.in/jspui/handle/123456789/10274 | - |
dc.description.abstract | A ductile iron was austempered at 302 and 385 C for various times to get lower and upper ausferrite microstructures respectively. The microstructures were characterised by optical microscopy and X-ray diffraction. Plane strain fracture toughness was determined under all heat treatment conditions. While the austempered ductile iron with lower ausferrite microstructure showed higher fracture toughness, the one with upper ausferrite microstructure exhibited higher tensile toughness and strain hardening coefficient. A model was developed relating fracture toughness to the yield strength (?y) volume fraction of retained austenite (X?) and the carbon content of the retained austenite (C?). Experimental results showed excellent agreement with the prediction of the model that K21C is proportional to ?y(X?C?)1/2. | en_US |
dc.title | Comparative study of fracture toughness of austempered ductile irons with upper and lower ausferrite microstructures | en_US |
dc.type | Article | en_US |
Appears in Collections: | 1. Journal Articles |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.