The C-regime measurements of grain boundary diffusion of silver in copper Sigma 5 (310) bicrystal

作者：Edelhoff Henning; Prokofjev Sergei I; Divinski Sergiy V^*

来源：Scripta Materialia, 2011, 64(5): 374-377.

DOI：10.1016/j.scriptamat.2010.10.032

• Copper
• Grain boundary
• Grain boundary diffusion
• Grain boundary segregation

For the first time, grain boundary diffusion of a solute is measured in a single grain boundary in the C kinetic regime after common Harrison's classification. The radiotracer technique is used to determine the (110m)Ag diffusion coefficients in Cu Sigma 5 (310) [0 0 1] bicrystal along and perpendicular to the [0 0 1] misorientation axis. The anisotropy of grain boundary diffusion increases slightly with decreasing temperature. However, it remains moderate, within a factor of two to three for the temperature interval studied.

• 出版日期2011-3