Crystallographical Analysis on Martensite Transformation and Martensitic Morphology.

Martensitic Transformation and Elastic Constants

Rigorous version of ınfinitesimal deformation approach to the crystallography of fcc bcc martensitic phase transformation observed in Fe-31 wt Ni and zirconia alloys

Following the mathematical approach of Kelly (2003), rigorous version of infinitesimal deformation approach (ID) was applied to analyze fcc  bcc martensitic phase transformation observed in Fe-31wt Ni alloys considering the twinning shear system as the lattice invariant system (LIS). The expressions for crystallographical parameters associated with the martensitic phase transformation such as...

Analysis of deformation induced martensitic transformation in stainless steels

Many studies monitoring the formation of martensite during the tensile deformation of austenite report data which are, in principle, affected by both the applied stress and the resulting plastic strain. It is not clear in these circumstances whether the transformation is stress induced (i.e. the stress provides a mechanical driving force) or whether the generation of defects during deformation ...

Driving force for martensitic transformation in steels

recently determined LVl~ to be 111918 J mol-I at temperatures below 1000 K, and pointed out that their experimental data were free from various 'intercept effects' which had dogged earlier investigations. Similarly, for T<1000K, they deduced '\~s=51.44Jmol-IK-I. There seem to be no data on the variation of LVl~ or ,\~s as a function of x. However, Lobo and Geigerl found that LVll: and ,\S~S do ...

Inverse Martensitic Transformation in Zr Nanowires

Suzhi Li,1 Xiangdong Ding,1,2,*,† Ju Li,1,3,*,‡ Xiaobing Ren,1,4 Jun Sun,1 Evan Ma,1,5,*,§ and Turab Lookman2 1State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China 2Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA 3Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia,...