Segregation of Solute Atoms to Stacking Faults
スポンサーリンク
概要
- 論文の詳細を見る
An experimental evidence was given for the segregation of solute atoms to stacking faults in alpha-brass. The stacking fault energy in an alpha-phase solid solution with face-centered cubic structure usually decreases continuously with the increasing concentration of solute atoms. The solute atoms in that alloy tend to segregate to the stacking faults due to chemical interaction. A simple calculation indicates that the solute atoms segregate to such a high concentration as the stacking fault energy becomes a negative value with considerable magnitude, provided that the concentration of solute atoms is in thermal equilibrium at rather low temperature. The width of an extended dislocation should increase indefinitely if the stacking fault energy becomes lower than a negative value. Alpha-brass with 30% zinc, which was annealed at 120℃ and 150℃ for a week and two days, respectively, after cold-work reveals extended dislocations with extremely wide stacking faults of the order of several microns.
- 社団法人日本物理学会の論文
- 1962-02-05