High Temperature Deformation Behavior of 8090 Al-Li Alloy

Table 3

The constitutive parameters for 𝛼̇ element determined from the load relaxation test results of 8090 Al–Li with the grain size of 18 𝜇m.

Temp. (°C)	log 𝜎^∗	log 𝛼̇^∗	𝑃
200	2.52	−9.27	0.15
300	2.17	−5.36	0.15
450	1.66	−4.44	0.15
530	1.55	−1.06	0.15