Dispersion strengthening models
Strengthening behavior of crystalline solids containing uniform dispersion of fine particles
SOLIDS↗
Engineering topics
Ansell, G. S.
Publications and source records attributed to Ansell, G. S..
Mechanical properties of two-phase crystalline materials.
Yielding behavior and dislocation motion in two phase crystalline solid
TWO-PHASE SYSTEM↗
GROWTH OF ALUMINUM OXIDE PARTICLES IN A NICKEL MATRIX
Aluminum oxide particle growth in nickel matrix
ALLOY↗
TEMPERATURE DEPENDENCE OF THE YIELDING BEHAVIOR STUDIED, OF SAP-TYPE DISPERSION STRENGTHENED ALLOYS
Temperature dependence of the yielding behavior of sap-type dispersion strengthened alloys
ALLOY↗
Creep of a Recrystallized Aluminum SAP-Type Alloy
Creep of a recrystallized aluminum sap-type alloy
ALUMINUM ALLOY↗
INTERNAL FRICTION BEHAVIOR OF AN ALUMINUM-ALUMINUM OXIDE SAP-TYPE ALLOY
Relaxation of aluminum-aluminum oxide alloy
ALUMINUM ALLOY↗
ON ''COMMENTS ON CRITERIA FOR YIELDING OF DISPERSION-STRENGTHENED ALLOYS''
Criteria for yielding of dispersion-strengthened alloys
DISPERSION↗
Criteria for Yielding of Dispersion-Strengthened Alloys
A dislocation model is presented in order to account for the yield behavior of alloys with a finely dispersed second-phase. The criteria for yielding used in the model, is that appreciable yielding occurs in these alloys when the shear stress due to piled-up groups of dislocations is sufficient to fracture or plastically deform the dispersed second-phase particles, relieving the back stress on the dislocation sources. Equations derived on the basis of this model, predict that the yield stress of the alloys varies as the reciprocal square root of the mean free path between dispersed particles. Experimental data is presented for several SAP-Type alloys, precipitation-hardened alloys and steels which are in good agreement with the yield strength variation as a function of dispersion spacing predicted by this theoretical treatment.
Ansell, G. S.↗