Orientation dependence of variant selection and intersection reactions ofϵmartensite in a high-manganese austenitic steel
- 7 July 2011
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine Letters
- Vol. 91 (9) , 563-571
Abstract
The orientation dependence of ϵ martensite during loading of a polycrystalline austenitic Fe-30Mn-4Si-2Al steel has been investigated by electron backscatter diffraction, emphasising the variant selection rule and plate–plate intersection reactions. Two types of plate–plate intersection reactions, which are characterised by incident shear direction of either 30° or 90° with respect to the intersection axis, were found in the grains along the [001]–[111] directions and [001]–[101] directions, respectively. In the intersecting volume of the latter type reaction, a γ phase rotated 90° from the austenite matrix along the ⟨011⟩ zone axis of the intersecting ϵ plates, which was theoretically predicted by Sleeswyk [A.W. Sleeswyk, Philos. Mag. 7 (1962) p.1597], has been experimentally observed for the first time.Keywords
This publication has 21 references indexed in Scilit:
- The effect of grain size and grain orientation on deformation twinning in a Fe–22wt.% Mn–0.6wt.% C TWIP steelMaterials Science and Engineering: A, 2010
- On the deformation mechanism of twinning-induced plasticity steelPhilosophical Magazine Letters, 2008
- Combined effects of crystallographic orientation, stacking fault energy and grain size on deformation twinning in fcc crystalsPhilosophical Magazine, 2008
- Transformation mechanism of α′-martensite in an austenitic Fe–Mn–C–N alloyScripta Materialia, 2007
- Dependence of deformation twinning on grain orientation in a high manganese steelScripta Materialia, 2006
- Deformation of single crystal Hadfield steel by twinning and slipActa Materialia, 2000
- Formation of h.c.p. and f.c.c. twins in an FeMnCrSiNi alloyActa Metallurgica et Materialia, 1994
- A mechanism for the strain-induced nucleation of martensitic transformationsJournal of the Less Common Metals, 1972
- Note on the F.C.C.→H.C.P. and H.C.P.→F.C.C. transformationsPhilosophical Magazine, 1962
- The martensite transformation in stainless steelPhilosophical Magazine, 1962