ABSTRACT
Table 43. Tensile properties of the hot extruded M g - Y -- A l alloys at room temperature [289].
Alloy composition, mass % TS, MPa T Y S , MPa E , %
4.62 Y 215 136 14.6
3.90 Y , 0.3 A l 260 202 7.0
4.03 Y , 0.42 A l 257 219 4.8
3.99 Y , 0.86 A l 232 172 19.2
4.23 Y , 1.80 A l 206 149 19.8
4.49 Y , 3.98 A l 220 158 14.2
3.04 Y , 4.92 A l 215 158 10.6
5.07 Y , 6.99 A l 262 181 9.8
3.09 Y , 6.30 A l 266 177 9.8
7.73 Y 265 139 14.4
7.70 Y , 0.27 A l 335 275 6.8
7.65 Y , 0.58 A l 352 298 5.0
7.90 Y , 0.97 A l 351 301 7.2
7.30 Y , 1.73 A l 327 275 11.8
7.58 Y , 1.97 A l 332 287 11.0
about 8 mass % Y in T6 condition also showed a change of the strength properties with
addition of A l following a curve with a maximum. Contents of A l additives were in the
range 0.34-1.06 mass %. Tests were carried out at room temperature and 300°C [366].
