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Meeting Materials Science & Technology 2019
Symposium Applications of Modern Characterization Techniques to Ferrous Alloys and Steel Products
Presentation Title Tracking Down Niobium Precipitation in HSLA Steels at the Atomic Level
Author(s) Johannes Webel, Dominik Britz, Hardy Mohrbacher, Volker Flaxa, Frank Mücklich
On-Site Speaker (Planned) Johannes Webel
Abstract Scope 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.
Proceedings Inclusion? Definite: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

An Improved Method for Characterization of Inclusions in Steels with X-ray Diffraction
Analysis of Hardening Mechanisms in a Low-carbon Steel by Microscopy-spectroscopy and Nanoindentation Techniques
Analysis of Sigma Formation Mechanisms in Aged Hyper Duplex Stainless Steel
Applications of Machine Learning In Microscopy for Routine Assessment and Quality Assurance in Ferrous Alloy Production, Manufacturing and Service
Elevated Temperature Mechanical Property-Microstructure Relationships of X70 Pipeline Steels
Microstructural and Physicochemical Properties of Iron-cerium Alloy
Neutron Scattering Characterization of Steel Alloys
Quantitative Analysis of Heterogeneous Solute Segregation at Austenite Grain Boundary or Austenite / Ferrite Interphase Boundaries ~ Three Dimensional Atom Probe Analysis Complemented with Austenite Reconstruction Method ~
Quantitative Analysis of Inconel 718 by SEM/EDS – Challenges and Possible Solutions
Synchrotron Radiation X-ray Diffraction Studies of Carbide Evolution in Fe-Mn-Al-C Steel
The Reduction Performance of the Ca2 (Fe2-xAlx) O5 Solid Solution
Tracing Competitive Segregation Effects in Boron Containing Micro-alloyed Steels
Tracking Down Niobium Precipitation in HSLA Steels at the Atomic Level

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