Abstract
Using first-principles calculations, we investigated the impact of applied stresses and alloying elements on ferrous martensite nanodomains. In non-alloyed martensite, the procedure revealed that twinned states can be stabilized depending on applied stresses, leading to several possible crystallographic structures: body-centered tetragonal (BCT) oblate, body-centered orthorhombic (BCO), or BCT prolate. In alloyed martensite, we confirmed the experimental data from literature showing that Al or high Ni addition disfavors crystal twin formation (leading to BCT variants with high tetragonality ratios), whereas Cr, Mn, or Re addition favors crystal twin formation (leading to BCO variants with low tetragonality ratios).
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
