The effect of boron on the chemistry of grain boundaries in stoichiometric Ni3Al
- 1 March 1988
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine Part B
- Vol. 57 (3), 379-385
- https://doi.org/10.1080/13642818808208510
Abstract
X-ray spectra have been obtained, using a 1 nm diameter electron beam, from thin foils of stoichiometric Ni3Al with and without boron (0·35 at.%). The boron addition produces nickel enrichment at grain boundaries, which implies a disordering of this region. Disordering of the grain boundary and the consequent expected increase in grain boundary dislocation mobility are suggested to be the reason for the ductility improvement of Ni3Al due to boron.Keywords
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