| Numéro |
J. Phys. IV France
Volume 112, October 2003
|
|
|---|---|---|
| Page(s) | 1071 - 1074 | |
| DOI | https://doi.org/10.1051/jp4:20031067 | |
J. Phys. IV France 112 (2003) 1071
DOI: 10.1051/jp4:20031067
The effect of composition and stress on the selection of
transformation modes in MnAl-C
A.S. Sologubenko, P. Müllner, H. Heinrich, M. Woligarten and G. Kostorz ETH Zurich, Institute of Applied Physics, 8093 Zürch, Switzeriand
Abstract
The
transformation in MnAl-C alloys was studied by metallographic methods and by transmission electron microscopy. The product
phase appears in two morphologies. A "flower-like" morphology results from a massive transformation whereas a "plate-like"
morphology results from a shear reaction. The shear reaction appears preferentially in alloys with large amounts of Mn and
C. Annealing under a suitable uniaxial compressive stress accelerates the operation of the shear mode.
© EDP Sciences 2003