https://www.selleckchem.com/Bcl-2.html
Propagation of mode I crack along bi-metal (001) interfaces of Fe/W, Fe/Ni, Fe/Co and Ti/Mg is simulated by molecular dynamics and discussed with the eigenvalue/vector of the atomic elastic stiffness, [Formula see text], and surface energy. The crack does not propagate at the interface but in the adjacent phase of smaller surface energy, except in Fe/Ni. The 1st eigenvalue ηa(1), or the solution of [Formula see text] of each atom, clarifies the difference of 'soft/hard' of both phases at the onset of crack propagation. In the case of Fe/Ni, the ηa