are you talking about C or SiC fiber reinforced Al ? In this case Age hardening of the Al Matrix can be achieved as for the pure Al by heat treatment.
Usually age hardening in Al alloys can be done when the alloys are composed by a maximum of three elements (including Al) and their phase equilibrium diagram has a monophasic region achievable only by heating from a two-phases region. Then the process consists in heating into this monophasic region and tempering (quenching). Then, a non-equilibrium phase is produced which will be decomposed in the two equilibrium phases (also known as precipitation hardening) by time (from there age hardening) or by a thermal treatment at low temperature to speed up the process.
Dear Jaswinder Singh,
The attached link may serve as a start of thinking about your question.
Article Hardness, Melting Reactions and Heat Treatment of Al-Si-Cu-M...
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