The Strength Enhancement Mechanisms of Aluminum and Its Alloys

Abstract

Aluminum and its alloys have been widely used in various fields including household appliances, weapons, pressure vessels, boats, aircraft flaps, marine, two-wheeled vehicles, automotive, and aircraft engine spare parts. This study discusses aluminum and its alloys, the numbering system, the effect of alloying elements on the cast, Al-Cu alloys, and the mechanism for increasing strength. The strength of aluminum alloys can be increased by improving their physical and mechanical properties through several treatments, which include solid-solution hardening, grain size strengthening, work or strain hardening, and precipitation hardening.