Grain boundary segregation in a high entropy alloy
A. Maldonado, Kamakhya Prakash Misra, R.D.K. Misra
Abstract
Grain boundary (GB) segregation was experimentally studied in a bulk high entropy Cantor alloy, which indicated for the first time that Cr strongly segregates to the GBs along with the weak segregation of Mn, implying co-segregation of Cr and Mn to the GBs. The strong segregation of Cr and weak segregation of Mn are explained in terms of the driving forces for GB segregation, where alloy interaction is favourable and stronger in the case of Cr, while elastic strain energy governs Mn segregation.
Topics & Concepts
AlloyGrain boundaryMaterials scienceHigh entropy alloysCondensed matter physicsCrystallographyEntropy (arrow of time)Grain boundary strengtheningMetallurgyThermodynamicsMicrostructureChemistryPhysicsHigh Entropy Alloys StudiesHigh-Temperature Coating BehaviorsHigh Temperature Alloys and Creep