Recrystallization and grain growth in Ni3Al with and without boron
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 217-225 |
Journal / Publication | Intermetallics |
Volume | 1 |
Issue number | 4 |
Publication status | Published - 1993 |
Externally published | Yes |
Link(s)
Abstract
The recrystallization and grain growth of boron-free and boron-doped (500 ppm by weight) Ni3Al polycrystals were investigated in the temperature range 700-1000°C. The levels of deformation were 17% reduction in length in compression for both alloys and 40% rolling reduction applied only to the boron-doped alloy. For alloys with or without boron, the Kolmogorov-Johnson-Mehl-Avrami relationship holds, with the Avrami exponent near unity, and the recrystallization rate is very slow. The activation energies for recrystallization are respectively 480 and 492 kJ/mol for boron-free and boron-doped to 40%. The grain growth kinetics obey a power law with the time exponent ranging from 0·2 to 0·4. The boron effect at 500 ppm was found to be small on both recrystallization and grain growth in Ni3Al. © 1993.
Research Area(s)
- aluminides, grain growth, microalloying, recrystallization
Citation Format(s)
Recrystallization and grain growth in Ni3Al with and without boron. / Zhou, B.; Chou, Y. T.; Liu, C. T.
In: Intermetallics, Vol. 1, No. 4, 1993, p. 217-225.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review