Growth twins in high stacking fault energy metals: Microstructure, texture and twinning

Deformation Microstructure and Texture in a Cold-Rolled Austenitic Steel with Low Stacking-Fault Energy

Deformation microstructure and texture in a cold-rolled austenitic steel 310S with low stacking fault energy (SFE) have been investigated by SEM and TEM. When 310S plates were rolled by 95% in thickness reduction, a remarkable development of the brass-type preferred orientation was confirmed by X-ray diffraction. SEM observations of the specimens with such texture exhibited a layered structure ...

An investigation on full annealing temperature and annealing twins’ Density in Fe-33Mn-3Si-2Al high-manganese steel

Twinning induced plasticity (TWIP) steels with high manganese percentage (17-35%), are mostly used in automotive bodies. Their microstructure at room temperature is austenitic, and due to the low stacking fault energy, major deformation mechanism in them is twinning inside austenite grains which leads to enhanced mechanical strength in the steel. Due to the important effect of heat treatment pr...

Stacking - fault energies in simple metals : applications to BCC metals

We present a general method for calculating the stacking-fault energy in simple metals, and then we apply this to the ( 1 1 2 ) faults in body-centred cubic (BCC) metals. Our method contains no approximations for a given wavenumber characteristic (or equivalently the pair potential). Our results show that metastable faults do indeed exist in the simple BCC metals (Li, Na. K, Rb, Cs, Ca. Sr, Ba)...

Calculated stacking-fault energies of elemental metals.

Texture and Microstructure Analysis with High-energy Synchrotron Radiation

Diffraction of high-energy synchrotron radiation with wavelengths in the range of 0.1Ǻ, provided by the beamline BW5 at HASYLAB in Hamburg, was used to measure textures (orientation distribution) and microstructures (spatial distribution) of the crystallites in various polycrystalline materials. In order to achieve extremely high angularcombined with very high lateral resolution a continuous sw...