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dc.contributor.authorRaviraj, M.S.
dc.contributor.authorSharanprabhu, C.M.
dc.contributor.authorMohankumar, G.C.
dc.date.accessioned2020-03-30T10:03:01Z-
dc.date.available2020-03-30T10:03:01Z-
dc.date.issued2018
dc.identifier.citationAIP Conference Proceedings, 2018, Vol.1943, , pp.-en_US
dc.identifier.urihttp://idr.nitk.ac.in/jspui/handle/123456789/7892-
dc.description.abstractAl 6061 matrix was reinforced with different proportions of TiC particles such as 3wt%, 5wt% and 7wt% and the effect on fracture toughness was studied. Al-TiC metal matrix composites were produced by stir casting method to ensure uniform distribution of the TiC particulates in the Al matrix. LEFM (Linear Elastic Fracture Mechanics) has been used to characterize the fracture toughness using various specimen geometries. The compact tension (CT) specimens with straight through notch were machined as per ASTM E399 specifications. All the specimens were machined to have constant a/W=0.5 and B/W was varied from 0.2 to 0.7. A sharp crack initiation was done at the end of notch by fatigue loading using servo-hydraulic controlled testing machine. Load v/s crack mouth opening displacement (CMOD) data was plotted and stress intensity factor, KQ determined. Critical stress intensity factor KIC was obtained by plotting KQ v/s thickness of specimen data. The fracture toughness of the composites varied between 16-19 MPa?m as compared to 23MPa?m for base alloy Al6061. Composites with 3wt% and 7wt% TiC showed better fracture toughness than 5wt% TiC reinforced Al metal matrix composites. � 2018 Author(s).en_US
dc.titleEffect of TiC addition on fracture toughness of Al6061 alloyen_US
dc.typeBook chapteren_US
Appears in Collections:2. Conference Papers

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