Metallographic observations of dynamic recrystallization in Ni3Al

It has been shown in earlier studies that the fracture surfaces of Ll2 alloys, in particular Zr3Al and (FeCO)3V, ruptured in tension at high temperatures (750 and 1000 C, respectively) feature nodules about 1 micron in diameter superimposed upon a coarser grain-sized background. These nodules have b...

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Veröffentlicht in:	Scripta metallurgica 1984-03, Vol.18 (3), p.237-240
Hauptverfasser:	BAKER, I, VIENS, D. V, SCHULSON, E. M
Format:	Artikel
Sprache:	eng
Schlagworte:	Cold working, work hardening annealing, quenching, tempering, recovery, and recrystallization textures Cross-disciplinary physics: materials science rheology Exact sciences and technology Materials science Metals, semimetals and alloys Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Specific materials Treatment of materials and its effects on microstructure and properties
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Zusammenfassung:	It has been shown in earlier studies that the fracture surfaces of Ll2 alloys, in particular Zr3Al and (FeCO)3V, ruptured in tension at high temperatures (750 and 1000 C, respectively) feature nodules about 1 micron in diameter superimposed upon a coarser grain-sized background. These nodules have been ascribed to dynamic recrystallization near grain boundaries followed by grain boundary sliding. Transmission electron microscopy and optical microscopy data are reported here for another Ll2 alloy, Ni3Al, which provide conclusive evidence of dynamic recrystallization in these alloys.
ISSN:	0036-9748
DOI:	10.1016/0036-9748(84)90514-3