T4 and T6 Treatment of 6061 Al-15 Vol. % SiC_P Composite

Table 2

The Brinell hardness values of T4-treated 6061 Al-SiC composite.

Time of aging (hours)	Indentation diameter (mm)	Brinell hardness (kgf/mm^2)	Hardness (MPa)
0	3.67	91	893.7
3	3.49	101	989.8
6	3.41	106	1038.8
12	3.38	108	1058.4
24	3.37	109	1068.2
48	3.35	110	1078
120	3.32	112	1097.6
240	3.33	112	1097.6
480	3.31	113	1107.4
720	3.31	113	1107.4
1440	3.33	112	1097.6