For two different high entropy alloys of the same...

For two different high entropy alloys of the same composition (A and B) to be annealed at the same temperature: 1. Both parts have the same size grains, A has a dendritic structure and the B has equiaxed compositionally homogeneous grains. And both are subjected to 50% compression deformation. 2. The parts have the same initial micro-structure, but the same number of dislocations were introduced by shear force in A and by compression in the B. 4 2024-2025 SPRING Plot the recovered fractions of these alloys against time for these two different scenarios and superimpose the recrystallization rates on the same graphs as they change with time. (You can assume that recrystallization is taking place.)

Transcript

00:01 So here of solution hortening, so of solution hortening as well as the precipitation.

00:16 So precipitation, even strain hardening.

00:25 So which one is reversed most easily by annealing? which one it is most reversed by annealing method? and which one is not which one is not that is the question so whenever we see this objective of strengthening a metal so what is meant by strengthening a metal what is the objective here so whatever the metals that are obtained it should be with high yield strength the metals with high yield strength so it must be achieved by increasing the stress required for moving in dislocation.

01:13 So here, high yield strength of the metals it can be obtained by improving or increasing the stress required, increasing the stress required for dislocation.

01:28 So there are different methods of strengthening of metals which include solution, ordaining, precipitation hardening, presbytation hardening, strain hortening and strengthening by grind refinement.

01:46 So many are they strengthening by grind refinement.

01:51 So in solution hortening, so in solution hodening, whatever the foreign atoms are.

02:00 So the foreign atoms of different elements, foreign atoms of different elements, they are dissolved in the solid.

02:11 They are dissolved in solid by the process of alloying, by the process of alloying.

02:20 Okay, so during annealing, so what is annealing? it is the process of stress relieving.

02:29 It is the process of stress relieving.

02:32 So during this hotening process, so whatever the hardening process, it is not reversed by process of ironing.

02:45 So solution hotening is not reversed by process of unlinger...

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