Segregation-induced embrittlement of grain boundaries
- 1 April 1979
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 39 (4) , 455-468
- https://doi.org/10.1080/01418617908239284
Abstract
Conditions are discussed under which an interface, possibly containing an adsorbed species, is capable of sustaining an atomistically sharp cleavage crack, rather than having any such crack blunt out via dislocation nucleation. Two models for ductile versus brittle interface response are discussed. One of these is applied to model grain boundaries in face-centred-cubic materials, and is used to compare predictions with experimental observations on the embrittlement of Cu polycrystals by the addition of dilute concentrations of Bi. The results are in qualitative agreement.Keywords
This publication has 6 references indexed in Scilit:
- The effect of fe additions on the embrittlement of Cu-Bi alloysMetallurgical Transactions A, 1976
- Cohesion margin of copperPhilosophical Magazine, 1974
- Ductile versus brittle behaviour of crystalsPhilosophical Magazine, 1974
- Temper Brittleness—An Interpretive ReviewPublished by ASTM International ,1968
- Ductile and brittle crystalsPhilosophical Magazine, 1967
- The formation of cracks as a result of plastic flowProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1954