FRACTURE OF ORDERED (Fe, Co)//3V.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Original languageEnglish
Pages (from-to)701-706
Journal / PublicationMetallurgical transactions. A, Physical metallurgy and materials science
Volume15 A
Issue number4
Publication statusPublished - Apr 1984

Abstract

Observations have been made of fracture surfaces deformed at low strain rates (3. 3 and 42 multiplied by 10** minus **3s** minus **1) in tension at temperatures from 20 to 1000 degree C, that is, above and below the order/disorder transformation temperature of 950 plus or minus 10 degree C. From 20 to 700 degree C, transgranular fracture occurs via the nucleation, growth, and coalescence of microvoids; high ductilities are obtained (34 to 44 pct). From 700 to 960 degree C, the fracture mode changes from transgranular to intergranular and ductility falls to a minimum of 4 pct. At 1000 degree C a third mode operates consisting of localized dynamic recrystallization followed by boundary sliding of recrystallized grains; ductility rises sharply. The underlying mechanisms are supported through additional experiments performed at higher strain rates.

Citation Format(s)

FRACTURE OF ORDERED (Fe, Co)//3V. / Liu, C. T.; Schulson, E. M.

In: Metallurgical transactions. A, Physical metallurgy and materials science, Vol. 15 A, No. 4, 04.1984, p. 701-706.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal