2012
DOI: 10.1016/j.msea.2012.01.109
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Hot deformation behavior of mechanically alloyed Al6063/0.75Al2O3/0.75Y2O3 nano-composite—A study using constitutive modeling and processing map

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Cited by 45 publications
(20 citation statements)
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“…Also some micro cracks occur near the specimen surface (Fig.13(c) and (d)) and may propagate to macro cracks by linking each other. As shown in Fig.14, many brittle Fe-rich particles observed in the solution treated specimens cannot be deformed during the matrix deformation, then the accumulated stresses near particles lead to the particle cracking, interface debonding and the formation of viods (Ahamed and Senthilkumar, 2012). This also leads to the flow instability in domain I and the weakening of workability (Ramanathan et al, 2007).…”
Section: Interpretation Of the Instable Domainsmentioning
confidence: 95%
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“…Also some micro cracks occur near the specimen surface (Fig.13(c) and (d)) and may propagate to macro cracks by linking each other. As shown in Fig.14, many brittle Fe-rich particles observed in the solution treated specimens cannot be deformed during the matrix deformation, then the accumulated stresses near particles lead to the particle cracking, interface debonding and the formation of viods (Ahamed and Senthilkumar, 2012). This also leads to the flow instability in domain I and the weakening of workability (Ramanathan et al, 2007).…”
Section: Interpretation Of the Instable Domainsmentioning
confidence: 95%
“…13(b)) at the triple junction due to the considerable stress concentration, which is caused by the sliding of the neighbouring grains under shear M a n u s c r i p t stress (Ahamed and Senthilkumar, 2012). Also some micro cracks occur near the specimen surface (Fig.13(c) and (d)) and may propagate to macro cracks by linking each other.…”
Section: Interpretation Of the Instable Domainsmentioning
confidence: 98%
“…This is in agreement with previous studies. [39][40][41] It has been shown elsewhere [42] that the recrystallized grains are developed as a consequence of a progressive rotation of subgrains adjacent to pre-existing grain boundaries during straining, i.e., continuous dynamic recrystallization (cDRX). It is well established that cDRX occurs in dispersoid alloys where fine particles strongly stabilize the substructure inhibiting the formation of nuclei and the growth of grains.…”
Section: Discussionmentioning
confidence: 99%
“…1) with the deformation temperatures of 700, 750, 800, 850 and 900°C, respectively [11][12][13]. Four typical strain rates of 0.001, 0.01, 0.1 and 1 s -1 were selected.…”
Section: Experimental Methodsmentioning
confidence: 99%