Figure 6: Phase transformation strengthening in ME501.
From: Phase transformation strengthening of high-temperature superalloys
(a) Schematic of an isolated SESF in a γ′ precipitate. (b) γ formers (Co, Cr, and Mo) segregated along the SESF in ME3. (c) Two more dislocations have interacted at the γ-γ′ interface near the SESF in ME3. (d) Two more Shockley partials shear along the SESF forming a four-layer twin that is able to shear both the γ and γ′ precipitates. (e) η formers (Co, Ta, Ti, and Nb) segregated along the SESF in ME501. (f) Two more dislocations have interacted at the γ-γ′ interface near the SESF in ME501. (g) Given results in Fig. 5 the dislocations are not able to form a twin in ME501.
