The Influence of Prior Natural Aging on the Subsequent Artificial Aging Response of Aluminium Alloy A356 with Respective Globular and Dendritic Microstructures

Table 1

Chemical composition limits for alloy A356 [6], as well as the compositions of the alloys used in this study.

	Si	Mg	Fe	Cu	Mn	Zn	Ti	Other (Each)	Other (Total)
Min	6.5	0.25	—	—	—	—	—	—	—
Max	7.5	0.45	0.2	0.2	0.1	0.1	0.2	0.05	0.15
SSM-HPDC	7.0	0.35	0.14	0.01	0.01	0.01	0.14	Sr=0.020
GDC	6.6	0.36	0.27	0.03	0.01	0.02	0.06	Sr=0.024
IC	6.7	0.25	0.10	0.01	0.01	0.01	0.06	Sr=0.026