Effect of zinc addition on the performance of aluminium alloy sacrificial anode for marine application

Khan, Bharvez; Rosli, M. U.; Jahidi, H.; Ishak, Muhammad Ikman; Zakaria, M. S.; Jamalludin, Mohd Riduan; Khor, C. Y.; Faizal, W. M.; Rahim, Wan Mohd Faizal Wan Abd; Nawi, M. A. M.

doi:10.1063/1.5002268

Cited by 19 publications

(1 citation statement)

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“…The addition of Zinc is intended to improve the strength of the alloy with a precipitation hardening method, besides Zinc can also improve the corrosion resistance of an alloy. 6,7) The density of this aluminum alloy is 2.81 g/cm³ (0.102 lb/in³), a relatively light density for metal alloys. 8) The strength of this aluminum alloy comes from a variety of alloying elements whose composition makes this alloy generally used as a structure for aircraft fuselages, military vehicles and various parts that have high stress applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nano Al_2O_3 Addition and T6 Heat Treatment on Characteristics of AA 7075 / Al_2O_3 Composite Fabricated by Squeeze Casting Method for Ballistic Application

Miqdad¹,

Syahrial²

2022

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Aluminum alloy AA 7075 majorly consists of Zinc and Magnesium, and it has been known as an alloy with high strength and ability to be heat treated. In regard to that, AA 7075 alloy was investigated to determine its application in military vehicles that require high protection and great mobility capabilities. The addition of Al2O3 can be done to improve the mechanical properties of the material such as hardness and impact toughness that is related to the protective ability of the material. This research was conducted to determine the effect of adding nano Al2O3 and heat treatment on the ballistic resistance of composite plates. The composites were fabricated by the squeeze casting method followed by heat treatment of T6 at 470 °C for two hours, water quench, and artificial aging at 120 °C for one hour. The reinforcement of nano Al2O3 is added to the melted aluminum alloy when the fabrication process takes place as much as 0.1, 0.2, 0.3 wt%. Furthermore, the composite plate was tested by ballistic testing Type II and III according to NIJ standard. Other characterizations were also carried out on the samples such as microstructural observations and hardness testing. The results of the characterization have found that all samples have protective ability in Type II ballistic testing but do not have protective ability in Type III ballistic testing. The addition of reinforcing particles affects the value of the hardness of composite material. Heat treatment increases the hardness value, impacts toughness value, and penetration trace in ballistic testing which has a direct relationship to microstructural changes that occur during the heat treatment process.

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Section: Introductionmentioning

confidence: 99%