Abstract
Metal matrix composites are widely used in components of various components of industrial equipment because of their superior material properties like high stiffness to weight ratio and high impact strength and fracture toughness while compared to the conventional material. Due to the concepts of high strength to low weight ratio, Al 7075 was extensively applied in aircraft engine and wings. Even if Al 7075 has higher hardness, higher strength, excellent wear resistance, and high-temperature corrosion protection, it is in need of further enhancement of properties for increasing its applicability. This paper presents the mechanical behavior of aluminium 7075 reinforced with Silicon Carbide (SiC) and Titanium Carbide (TiC) through powder metallurgy route. These specimens were produced by powder metallurgy method. The hybrid composite was made by Al 7075 alloy as the matrix with Silicon Carbide and Titanium Carbide as reinforcement. Silicon Carbide and Titanium Carbide are mixed in different weight ratio based on the design matrix formulated through a statistical tool, namely, Response Surface Methodology (RSM). Enhanced mechanical properties have been obtained with 90% of Al 7075, 4% of TiC, and 8% of SiC composition in the composite. Coefficient of friction appears to be more which has been determined by ring compression test.
Highlights
Powder metallurgy is one of the fast emerging routes in the industrial application because of its advantages such as high dimensional control and avoids secondary machining operation
Aluminium 7075 is widely adopted in aircraft engines and wings, due to its advantageous properties such as high strength to low weight ratio, higher hardness, high strength, excellent wear resistance, and high-temperature corrosion protection [4]
This paper focuses on further enhancement of the properties of aluminium 7075 alloy through powder metallurgy process by incorporating Silicon Carbide (SiC) and Titanium Carbide (TiC) as a hybrid reinforcement
Summary
Powder metallurgy is one of the fast emerging routes in the industrial application because of its advantages such as high dimensional control and avoids secondary machining operation. Aluminium 7075 is widely adopted in aircraft engines and wings, due to its advantageous properties such as high strength to low weight ratio, higher hardness, high strength, excellent wear resistance, and high-temperature corrosion protection [4]. Nano-Titanium Carbide (TiC) possesses several advantages such as high specific strength, good corrosion resistance, and good wear property [1]. Along with these properties, Titanium Carbide has excellent strength to weight ratio which is in need to the aerospace, chemical, and architectural industries. This paper focuses on further enhancement of the properties of aluminium 7075 alloy through powder metallurgy process by incorporating SiC and TiC as a hybrid reinforcement
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