Comment by aluminium_is_cool on 16/08/2023 at 20:14 UTC

3 upvotes, 3 direct replies (showing 3)

View submission: Guinier-Preston zones

These zones don't have a constant concentration of solute throughout their volume, right? It's a gradient?

Replies

Comment by Suspicious-Ad-9380 at 16/08/2023 at 22:22 UTC

5 upvotes, 2 direct replies

More like they deplete the surrounding areas until they hit equilibrium for whatever temp they are precipitating at.

Comment by [deleted] at 16/08/2023 at 20:50 UTC

3 upvotes, 0 direct replies

Don't really know, what I know (I've re-read my lecture notes) is that GP zones are like small disks constituted with solute atoms, they are coherent with the matrix even if there is a small distortion.

What's more interesting is that along the precipitation sequence of AlCu alloys, you form others precipitates which are larger : θ'' and θ'

Comment by [deleted] at 17/08/2023 at 04:07 UTC

4 upvotes, 1 direct replies

[deleted]