Hyunseok Oh1,2,Khorgolkhuu Odbadrakh3,4,Yuji Ikeda5,6,Sai Mu4,Fritz Koermann5,7,Chengjun Sun8,Hye Sang Ahn1,Kooknoh Yoon1,Duancheng Ma9,Cem Tasan2,Takeshi Egami4,3,Eun Soo Park1
Seoul National University1,Massachusetts Institute of Technology2,The University of Tennessee, Knoxville3,Oak Ridge National Laboratory4,Max-Planck-Institut fur Eisenforschung5,University of Stuttgart6,Delft University of Technology7,Argonne National Laboratory8,Friedrich-Alexander-Universität Erlangen-Nürnberg9
Hyunseok Oh1,2,Khorgolkhuu Odbadrakh3,4,Yuji Ikeda5,6,Sai Mu4,Fritz Koermann5,7,Chengjun Sun8,Hye Sang Ahn1,Kooknoh Yoon1,Duancheng Ma9,Cem Tasan2,Takeshi Egami4,3,Eun Soo Park1
Seoul National University1,Massachusetts Institute of Technology2,The University of Tennessee, Knoxville3,Oak Ridge National Laboratory4,Max-Planck-Institut fur Eisenforschung5,University of Stuttgart6,Delft University of Technology7,Argonne National Laboratory8,Friedrich-Alexander-Universität Erlangen-Nürnberg9
Lattice distortion has been regarded as one of the four core effects of complex concentrated and high entropy alloys. Recently, it was shown that atomic-level pressure (or the misfit volume) in 3d transition metal element (V, Cr, Mn, Fe, Co, Ni)-based complex concentrated alloys (3d CCAs) with face-centered cubic structure originates from charge transfer between neighboring atoms, which suggests the electronic origin of lattice distortion, rather than a classical mechanical view mainly based on atomic size arguments. Here we show that the magnitude of the local lattice distortion of a specific element is strongly affected by its electronegativity. The trend is only a little affected in the presence of short-range order. This study provides an important link between atomistic properties (electronegativity) and physical properties in 3d CCA and rationalizes the proposed relation between lattice distortion and complexity-induced properties in 3d CCAs.