MSE C135 HW#1 Q'S 5-7

solution heat treatment

heating it up

natural ageing

holding the quenched alloy @ room temp for days to weeks

artificial ageing

hold at roughly 120-190 degrees celcius for hrs

cold work

plastic deformation at room temp

stabilize/overage

why it’s done on purpose/ageing beyond the peak

t1

hot shaping, natural ageing

t2

hot shaping, cold work, natural ageing

t3

solution heat treatment, quench, cold work, natural ageing

t4

solution heat treatment, quench, natural ageing

t5

hot shaping, artificial ageing

t6

solution heat treatment, quench, artificial ageing

t7

solution heat treatment, quench, stabilize/overage

t8

solution heat treatment, quench, cold work, artificial ageing

t9

solution heat treatment, quench, artificial ageing, cold work