On the concentration dependence of stress equivalence in solid solution hardening

Onset of local ordering in some copper-based alloys: critical solute concentration vis-a-vis various solutionhardening parameters

“…5) strongly depends on the size-misfit factor δ of a given binary alloy system; the smaller the magnitude of δ, the greater the value of and vice versa. It is worthy of note that in an attempt to account for the loss of stress-equivalence in concentrated solid-solutions, Schwink and Wille [23] opined that the size-misfit factor δ plays a significant role. Quoting from their paper: "For a given concentration above a critical one to favour solute interactions, a large δ may enhance deviations from a statistical distribution of solute atoms and thus induce stronger clusterings."…”

Correlation between the temperature dependence of yield stress and the nature of solute distribution in Cu–Ni solid solutions

“…As far as alloys are concerned, the non-random distribution of solute atoms has a marked effect on the principal features of solid-solution hardening, such as the temperature and concentration dependence of yield stress and associated activation volume [13][14][15][16][17][18], the stress dependence of activation volume [19], and the phenomenon of stress equivalence [9,20,21]. So is the case for other mechanical properties of solid-solution crystals, such as workhardening rate [22], internal friction [23], creep [22,24], stress relaxation [25,26], and strain rate sensitivity of flow stress [27].…”

“…This is true for both solid-solution as well as nominally pure element crystals. For instance, solute segregation to partial dislocations [2][3][4][5] and stacking faults [6] as well as local ordering (whether short-range order or clustering) of solute atoms [7][8][9] in single-phase binary and ternary alloys play an important role in this regard. So is the case with the nominally pure metals [10][11][12] in which migration of point defects, e.g.…”

“…The physical, functional, electrical and mechanical properties of crystalline materials are closely linked to the microstructural developments [1][2][3][4][5][6][7][8][9][10][11] which occur in the lattice. This is true for both solid-solution as well as nominally pure element crystals.…”

Dislocation structure and densities in tensile deformedCuMn crystals oriented for single glide

“…[5 to 71. We studied QMn single crystals with 1.3 at% Mn showing several favourable properties: While exhibiting a strong solid solution hardening [8], G x M n with x 5 3 at% still has Cu-like dislocation arrays [7]; the tendency for short-range ordering (SRO) is still ') Mendelssohnstr. 3, W-3300 Braunschweig, FRG. '…”