About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
Grain Boundaries, Interfaces, and Surfaces: Fundamental Structure-Property-Performance Relationships
|
| Presentation Title |
On Grain Boundary Engineering of Austenitic Stainless Steels |
| Author(s) |
Osama M. Alyousif |
| On-Site Speaker (Planned) |
Osama M. Alyousif |
| Abstract Scope |
Austenitic stainless steels' microstructures are very susceptible to change under thermomechanical processing. These changes would render a structure superior in behavior in harsh environments. The degree of thermomechanical processing would affect the grain boundary distribution; hence the term “grain boundary engineering."
Samples made out of Type 304 austenitic stainless steels subjected to various cold-working amounts, followed by annealing heat treatment, were investigated using electron backscatter diffraction (EBSD) and X-ray diffraction (XRD) techniques to assess the change in microstructure to find the optimum combination of thermomechanical processes that would make the material more resistant to intergranular corrosion by creating a high frequency of low sigma CSL boundaries.
Among the best treatments, low strains showed promising microstructure evolution, which would be further investigated in the future. |