The influence of orientation and aluminium content on the deformation mechanisms of Hadfield steel single crystals
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Elena G. Astafurova
, Irina V. Kireeva , Yuriy I. Chumlyakov , Hans J. Maier und Huseyin Sehitoglu
Abstract
The low stacking fault energy and high carbon content in Hadfield steel make twinning the basic deformation mechanism from the onset of plastic deformation in [1¯11] and [011] oriented single crystals in tension at T = 77 – 300 K. Alloying with aluminium (2.7 Al in wt.%) results in an increase of stacking fault energy from 0.03 J · m2 to 0.05 J · m−2 and moves twinning to higher degrees of deformation (∊pl > 15 %). In aluminium-free [1¯23] crystals twinning starts after 20 % strain. For [1¯23], [001] orientations, aluminium additions change the dislocation arrangement from a uniform distribution to a planar dislocation arrangment and also suppress twinning. Intersections of dislocation pile-ups were found to be the governing factor for hardening in the aluminium-alloyed [001] crystals.
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© 2007, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Basic
- A comparison of different distributions of azimuth angles in the sin2 ψ-method
- Experimental study and thermodynamic assessment of the ZrO2–DyO1.5 system
- Liquid–solid phase equilibria in metal-rich Hf–Ti–Si alloys
- Density and atomic volume in liquid Al–Fe and Al–Ni binary alloys
- Identification of liquid/solid transformations in eutectic Pb–Sn alloy
- Cyclic deformation behaviour and lifetime calculation of the magnesium die-cast alloys AZ91D, MRI 153M and MRI 230D
- Applied
- Superplastic deformation behavior of a spray-deposited eutectic NiAl/Cr(Mo) alloy doped with Dy
- Fracture behavior of overmatched ductile iron weldment
- Design of carbide-free low-temperature ultra high strength bainitic steels
- The influence of orientation and aluminium content on the deformation mechanisms of Hadfield steel single crystals
- Effect of tempering on the microstructure and hardness of ledeburitic chromium steel X155CrVMo12.1
- Notifications
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Basic
- A comparison of different distributions of azimuth angles in the sin2 ψ-method
- Experimental study and thermodynamic assessment of the ZrO2–DyO1.5 system
- Liquid–solid phase equilibria in metal-rich Hf–Ti–Si alloys
- Density and atomic volume in liquid Al–Fe and Al–Ni binary alloys
- Identification of liquid/solid transformations in eutectic Pb–Sn alloy
- Cyclic deformation behaviour and lifetime calculation of the magnesium die-cast alloys AZ91D, MRI 153M and MRI 230D
- Applied
- Superplastic deformation behavior of a spray-deposited eutectic NiAl/Cr(Mo) alloy doped with Dy
- Fracture behavior of overmatched ductile iron weldment
- Design of carbide-free low-temperature ultra high strength bainitic steels
- The influence of orientation and aluminium content on the deformation mechanisms of Hadfield steel single crystals
- Effect of tempering on the microstructure and hardness of ledeburitic chromium steel X155CrVMo12.1
- Notifications
- DGM News