Affiliation:
1. Materials Innovation Institute (M2i)
2. Delft University of Technology
Abstract
Annealing of martensite/austenite microstructures leads to the partitioning of carbon from martensite to austenite until the chemical potential of carbon equilibrates in both phases. This work calculates the volume change associated with this phenomenon using theoretical models for the carbon partitioning from martensite to austenite. Calculations are compared with experimentally determined volume changes. This comparison reveals that in the case of steels with higher contents of austenite-stabilizing elements, reported volume changes are satisfactory predicted assuming a low mobilily martensite/austenite interface. In the case of a steel with lower additions of austenite-stabilizing elements, experimentally measured expansions are considerably larger than predicted ones. The large measured volume expansions probably reflect the decomposition of the austenite.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference24 articles.
1. J.G. Speer, A.M. Streicher, D.K. Matlock, F.C. Rizzo and G. Krauss, in: Austenite Formation and Decomp., ed. by E. B Damm and M. Merwin, Warrendale, PA: TMS/ISS (2003) p.505.
2. J.G. Speer, F.C. Rizzo, D.K. Matlock, D.V. Edmonds: Mater. Res. Vol. 8 (2005), p.417.
3. J.G. Speer, D.K. Matlock, B.C. De Cooman and J.G. Schroth: Acta Mater. Vol. 51 (2003), p.2611.
4. J.G. Speer, D.K. Matlock, B.C. De Cooman and J.G. Schroth: Scr. Mater. Vol. 52 (2005), p.83.
5. M. Hillert and J. Ågren: Scripta Mater. Vol. 50 (2004), p.697.
Cited by
50 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献