|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Hume-Rothery Award Symposium: Alloy Phase Chemistry at the Atomic Level - Opportunities and Challenges
||A New Look at Steel Martensite Tempering with Advanced Characterization Tools
||Amy Clarke, Michael Miller, Daniel Coughlin, Dean Pierce, Jon Poplawsky, Paul Gibbs, Kester Clarke, Virginia Judge, Bjorn Clausen, Jon Almer, Robert Field, Don Williamson, David Alexander, John Speer, George Krauss
|On-Site Speaker (Planned)
Steel is the world's most versatile structural material, thanks to the two temperature-dependent crystal structures of iron, the addition of interstitial carbon atoms, and alloying with selected substitutional alloying elements. Phases, microstructures and properties of steel depend upon where the atoms are and how they got there during processing. William Hume-Rothery spent his scientific career understanding chemical metallurgy and the link between atomic bonding and microstructure. G.D.W. Smith has dedicated his career to the study of fine-scale compositional variations in alloys, especially in steels. Advanced characterization tools such as atom probe tomography (APT) now afford unprecedented access to chemistry variations in three-dimensions at the atomic scale. Here we highlight atomic- and nano-scale microstructural evolution, with APT and complementary techniques, including transmission electron microscopy, Mössbauer effect spectroscopy, and synchrotron x-ray diffraction, in a medium carbon, low-alloyed steel after quenching and tempering over a wide range of tempering temperatures and times.
||Planned: Supplemental Proceedings volume