Uneven Precipitation Behavior during the Solutionizing Course of Al-Cu-Mn Alloys and Their Contribution to High Temperature Strength

Table 2

Tension properties at 25°C and 300°C of the A₂ alloy at different states.

State		UTS (MPa)	YS (MPa)	Elongation (%)
As-cast	25°C	147 ± 9.0	90 ± 4.0	4.5 ± 0.7
	300°C	89 ± 8.0	68 ± 5.0	6 ± 0.5
As-solutionized	25°C	256 ± 18.0	157 ± 1.6	4.8 ± 0.7
	300°C	115 ± 6.0	93 ± 2.6	6.04 ± 2.1
T6	25°C	369 ± 22.0	248 ± 4.5	6.26 ± 0.8
	300°C	116 ± 11.0	96 ± 8.0	8.3 ± 4.5