Journal
MATERIALS & DESIGN
Volume 127, Issue -, Pages 336-345Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2017.04.080
Keywords
Carbon; Martensite; Austenite stability; Atom probe tomography (APT); X-ray diffraction(XRD)
Categories
Funding
- European Research Council under the European Union [306292]
- European Research Council (ERC) [306292] Funding Source: European Research Council (ERC)
Ask authors/readers for more resources
Understanding carbon redistribution in steels is crucial in developing advanced high strength steels. For instance, Quenching & Partitioning (Q & P) processes rely on the partitioning of carbon from martensite into austenite, where at the end of the heat treatment the carbon-enriched austenite shows higher stability at room temperature. Recent literature gives increasing evidence of carbide precipitation occurring during partitioning despite the addition of silicon, conventionally thought to suppress carbide precipitation. The aim of the present study is to gain insight into carbon-competing processes by applying a series of Q & P heat treatments, with particular focus on the partitioning stage, where the role of silicon in the stability of austenite is evaluated. Various characterisation techniques are combined in order to unveil the microstructural changes. While carbide precipitation does appear to occur in the presence of silicon, it is found that silicon plays an active role in the stabilisation of the austenite during the partitioning reaction.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available