The Library
Real-time synchrotron X-ray diffraction study on the isothermal martensite transformation of maraging steel in high magnetic fields
Tools
Tools
Tools
San Martin, D., Jiménez-Melero, E., Duffy, J. A., Honkimäki, V., van der Zwaag, S. and van Dijk, N. H. (2012) Real-time synchrotron X-ray diffraction study on the isothermal martensite transformation of maraging steel in high magnetic fields. Journal of Applied Crystallography, Vol.45 (No.4). pp. 748-757. doi:10.1107/S0021889812024892 ISSN 0021-8898.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1107/S0021889812024892
Abstract
The isothermal austenite-to-martensite transformation kinetics in a maraging steel have been studied by time-dependent microbeam diffraction measurements with high-energy X-rays. The transformation kinetics are shown to be accelerated significantly when a magnetic field of 8 T is applied. The average phase behaviour, obtained from a Rietveld refinement of the powder-averaged diffraction data, demonstrates that the martensite formation does not lead to a macroscopic strain in the austenite and martensite phases. An analysis of individual austenite reflections in the microbeam diffraction patterns, however, indicates that within the transforming austenite grains a transformation strain develops as a result of the formed martensite. The development of elastic strains during the transformation is explained by a partial strain confinement within the untransformed part of the austenite grain. The strain relaxation to the surrounding austenite grains is found to be dependent on the austenite volume. For a set of individual austenite grains the martensite nucleation is correlated with the initial austenite volume and the strain developed prior to the transformation as a result of martensite formation in the neighbouring grains.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Journal or Publication Title: | Journal of Applied Crystallography | ||||
| Publisher: | Wiley-Blackwell Publishing Ltd. | ||||
| ISSN: | 0021-8898 | ||||
| Official Date: | 2012 | ||||
| Dates: |
|
||||
| Volume: | Vol.45 | ||||
| Number: | No.4 | ||||
| Page Range: | pp. 748-757 | ||||
| DOI: | 10.1107/S0021889812024892 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
Request changes or add full text files to a record
Repository staff actions (login required)
 |
View Item |
