Effect of Grain Boundary Segregation on Mechanical Properties of P-Doped Fe-Si Base Alloys

2005 ◽  
Vol 482 ◽  
pp. 191-194 ◽  
Author(s):  
Jozef Janovec ◽  
Monika Jenko ◽  
Jaroslav Pokluda ◽  
B. Vlach ◽  
Pavel Lejček ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Grain Boundary ◽  
Boundary Segregation ◽  
Grain Boundary Segregation

Grain boundary segregation in metals

1992 ◽  
Vol 50 (2) ◽  
pp. 1204-1205
Author(s):  
C.L. Briant
Keyword(s):  
Fracture Surface ◽  
Grain Boundary ◽  
Grain Boundaries ◽  
Material Properties ◽  
Electron Spectroscopy ◽  
High Vacuum ◽  
Boundary Segregation ◽  
Grain Boundary Segregation ◽  
Local Concentration ◽  
The One

Grain boundary segregation is the process by which solute elements in a material diffuse to the grain boundaries, become trapped there, and increase their local concentration at the boundary over that in the bulk. As a result of this process this local concentration of the segregant at the grain boundary can be many orders of magnitude greater than the bulk concentration of the segregant. The importance of this problem lies in the fact that grain boundary segregation can affect many material properties such as fracture, corrosion, and grain growth.One of the best ways to study grain boundary segregation is with Auger electron spectroscopy. This spectroscopy is an extremely surface sensitive technique. When it is used to study grain boundary segregation the sample must first be fractured intergranularly in the high vacuum spectrometer. This fracture surface is then the one that is analyzed. The development of scanning Auger spectrometers have allowed researchers to first image the fracture surface that is created and then to perform analyses on individual grain boundaries.

Sign in / Sign up

Export Citation Format

Share Document