%0 Journal Article %1 Rice198923 %A Rice, James R. %A Wang, Jian-Sheng %D 1989 %J Materials Science and Engineering: A %K brittle ductile model %P 23 - 40 %R 10.1016/0921-5093(89)90372-9 %T Embrittlement of interfaces by solute segregation %U http://www.sciencedirect.com/science/article/B6TXD-48CWY7W-6/2/993ea5c48845a702d2a8c39e0d28e834 %V 107 %X We discuss theoretical models of interfacial embrittlement by solute segregation. Of properties susceptible to alteration by segregation, the ideal work of interfacial separation, 2gammaint, is predicted to have an important but probably not exclusive role in controlling embrittlement. A thermodynamic framework for estimating 2gammaint from data available through free surface and grain boundary adsorption studies is outlined, and relevant segregation energies are given for carbon, phosphorus, tin, antimony and sulphur segregation in iron. Data from intergranular fracture experiments involving these same segregants is also summarized in an attempt to test the idea that segregation-induced embrittlement (or ductilization) can be understood in terms of the segregant's effect on 2gammaint. Uncertainties in present data do not allow a convincing test, but it is not implausible that the deleterious effects of phosphorus, tin, and sulphur in iron can be understood in this way. The effect of carbon does not seem to be similarly understandable, although that may be due to the inappropriateness of the only available surface segregation data in that case, which are for a (001) surface rather than a general polycrystalline surface created by intergranular fracture.

@article{Rice198923, abstract = {We discuss theoretical models of interfacial embrittlement by solute segregation. Of properties susceptible to alteration by segregation, the ideal work of interfacial separation, 2[gamma]int, is predicted to have an important but probably not exclusive role in controlling embrittlement. A thermodynamic framework for estimating 2[gamma]int from data available through free surface and grain boundary adsorption studies is outlined, and relevant segregation energies are given for carbon, phosphorus, tin, antimony and sulphur segregation in iron. Data from intergranular fracture experiments involving these same segregants is also summarized in an attempt to test the idea that segregation-induced embrittlement (or ductilization) can be understood in terms of the segregant's effect on 2[gamma]int. Uncertainties in present data do not allow a convincing test, but it is not implausible that the deleterious effects of phosphorus, tin, and sulphur in iron can be understood in this way. The effect of carbon does not seem to be similarly understandable, although that may be due to the inappropriateness of the only available surface segregation data in that case, which are for a (001) surface rather than a general polycrystalline surface created by intergranular fracture.}, added-at = {2010-11-03T17:56:03.000+0100}, author = {Rice, James R. and Wang, Jian-Sheng}, biburl = {https://www.bibsonomy.org/bibtex/2d5e15722ef116d46a8532a8ff217cbe0/riche.ma}, description = {ScienceDirect - Materials Science and Engineering: A : Embrittlement of interfaces by solute segregation}, doi = {10.1016/0921-5093(89)90372-9}, interhash = {5560811ef12dac6451fdbc545f7b1629}, intrahash = {d5e15722ef116d46a8532a8ff217cbe0}, issn = {0921-5093}, journal = {Materials Science and Engineering: A}, keywords = {brittle ductile model}, note = {Poceedings of the Symposium on Interfacial Phenomena in Composites: Processing Characterization and Mechanical Properties}, pages = {23 - 40}, timestamp = {2010-11-03T17:56:04.000+0100}, title = {Embrittlement of interfaces by solute segregation}, url = {http://www.sciencedirect.com/science/article/B6TXD-48CWY7W-6/2/993ea5c48845a702d2a8c39e0d28e834}, volume = 107, year = 1989 }