|About this Abstract
||Materials Science & Technology 2019
||Applications of Modern Characterization Techniques to Ferrous Alloys and Steel Products
||Tracking Down Niobium Precipitation in HSLA Steels at the Atomic Level
||Johannes Webel, Dominik Britz, Hardy Mohrbacher, Volker Flaxa, Frank Mücklich
|On-Site Speaker (Planned)
The interplay of temperature and time, degree of deformation and chemistry, especially microalloying additions, play a crucial role in the microstructure evolution and the resulting mechanical properties of High Strength-Low Alloy steels. From the perspective of microalloying, niobium precipitates on the nanometer-scale play an important role. There is still missing information about the evolution of the precipitates and their effectiveness during hot rolling. In this context, atom probe tomography (APT) offers high-resolution spatial and chemical information down to the atomic scale.
Here, we address how APT measurements on both precipitates and solute solution can be compared to electric resistance measurements to investigate the precipitate evolution for many different Nb contents and hot working conditions. A methodology leading to an improved APT analysis of precipitates in steel will be also demonstrated.
||Definite: At-meeting proceedings