Domain Structures across the Martensitic Transformation in Ni_2+xMn_1-xGa

Martensitic Transformation and Elastic Constants

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,...

Complexion-mediated martensitic phase transformation in Titanium

The most efficient way to tune microstructures and mechanical properties of metallic alloys lies in designing and using athermal phase transformations. Examples are shape memory alloys and high strength steels, which together stand for 1,500 million tons annual production. In these materials, martensite formation and mechanical twinning are tuned via composition adjustment for realizing complex...

Phase Stability of Martensitic Structures

In the first part of the paper the relative stabilities of the different martensitic phases, mainly in Cu-Zn-Al, are compared. It is shown that the differences in enthalpy of formation between the fcc type 3R or 6R and the 9R, 18R or 2H structures are above all due to a lattice distortion which reduces the energy per stacking fault, considering 9R, I8R and 2H as a basic face centered lattice in...