Special Seminar
September 11, 2023
1:00 p.m. ET
Wean Hall 2327
September 11, 2023
1:00 p.m. ET
Wean Hall 2327
It is well known that the crystallographic texture is of paramount importance for the anisotropy control of a wide variety of material properties. E.g., for Non-Oriented grades of electrical steel the θ-fiber texture (<001>//ND) provides the best prospect for optimizing the magnetic properties. However, after conventional cold rolling and annealing of (ultra-) low carbon steels the γ-fiber texture (<111>//ND) appears, which is precisely opposite of what is necessary for the magnetic properties. One alternative to conventional cold rolling is warm rolling, i.e., rolling at elevated temperature but below the Ac1 temperature. It is well-known that recrystallization after warm rolling enhances the θ-fiber texture. However, the structural origin of this drastic texture change as a function of rolling temperature is not well understood. In this talk the recovered structure just before the onset of primary recrystallization is analyzed in detail on an interstitial free steel, which can be regarded as a model material for all ultra-low-carbon steels. A remarkable and statistically relevant difference is observed between the dynamically recovered structure after warm rolling to a reduction of 80% at 550°C and after static recovery at 500°C of a cold rolled sheet rolled to a reduction of 75%. It will be explained how subtle substructural differences are of crucial importance for texture formation during primary recrystallization.
July 8 2025
1:00 PM ET
Materials Science and Engineering
"Uncovering the Driving Force of Thermal-Activated Grain Boundary Migration in Polycrystals," presented by Zipeng Xu
Doherty A310
July 29 2025
11:00 AM ET
Materials Science and Engineering
Graduate Programs Information Session
Learn more about the master's and doctoral programs in materials science and engineering at CMU.
August 13-15 2025
Materials Science and Engineering
Workshop on Methods for Three-Dimensional Microstructure Studies
The workshop is intended for researchers at all levels and will combine presentations on 3D microstructure science as well as practical presentations on the tools and methods for reconstructing, analyzing and synthesizing.
Scott Hall 5201 (Bosch Sparks Conference Room)