The effect of different sliding speeds on wear behavior of ZrO2 reinforcement aluminium matrix composite materials

Abstract

Due to the many advantages it provides metal matrix composite materials, it is used as a publication in many industrial applications, especially in the automotive industry. Therefore, it is necessary to know the properties of these materials such as mechanical, tribological and corrosion. In this study, the effect of different sliding speeds was investigated on wear behavior of aluminum matrix composite materials produced by adding different amounts of ZrO2 by mechanical alloying method. 4 different amounts (3%, 6%, 9% and 12%) ZrO2 were added to the aluminum 2% graphite matrix. Composite powders mechanically alloyed for 60 minutes, were produced green compact samples by cold pressed with a pressure of 700 MPa. The green compacts produced were sintered for 2 hours at 600 °C. The produced aluminum composites were characterized by microstructure, density and hardness measurements. Wear tests were carried out on a block onring type wear testing device, under 20 N load and three different sliding speed (0.2 ms-1 , 0.4 ms-1 and 0.6 ms-1) and three different sliding distances (53 m, 72 m and 94 m). As a result of the studies, hardness and density values increased as the amount of ZrO2 in the matrix increased. Wear test results showed that weight loss decreased with increasing amount of reinforcement in the matrix.

Influence of ZrO2 Particles on the Tribological Properties of AlMg5 Alloy

“…In addition, increasing the sliding speed, the temperature resulting from friction increases and leads to the formation of a more effective (protective) oxide layer on the surface. Due to the lubricating feature of the emerging oxide layer, the weight loss decreases [2]. Consequently, the lowest specific wear rate obtains at 0.5 ms -1 and the highest one obtains at 0.125 ms -1 .…”

“…Aluminum and its alloys are wide range applicable in aviation, automotive and defense sectors, due to their low density, durable mechanical properties and good corrosion resistance. However, relatively low wear resistance of aluminum and its alloys despite good mechanical properties restricts the use of these alloys in some tribological applications [1][2][3]. In order to overcome these drawbacks and to align with such elevated engineering demands of modern technology, the metal matrix composites (MMCs) are devoting more attention to be more applicable as an engineering material [4].…”

“…Therefore, many authors preferred to use powder technique instead of stir casting to avoid these problems. For example, Şimşek et al [2] fabricated Al 2% graphite/ZrO2 composites with four different amounts of ZrO2 up to 12% via powder metallurgy technique then studied their wear behavior. The study showed that both hardness and density values increased as the amount of ZrO2 increased.…”

Determination of the effect of artificial aging parameters on dry sliding wear resistance of 6013 aluminum alloy (Al-Mg-Si-Cu)

“…Compared to steel and its alloys, aluminum and its alloys have been used in the automotive industry and in the aerospace industry since 1910 due to their high specific strength, corrosion resistance, and easy workability [1,2]. Furthermore, the mechanical, physical, and chemical properties of heat-treatable 2XXX (Al-Cu), 6XXX (Al-Mg-Si) and 7XXX (Al-Zn-Mg) aluminum alloys can be improved by artificial aging.…”

The comparative study of conventional and ultra-high frequency induction sintering behavior of pure aluminum

“…Because of their superior strength to weight ratio, easy machining and excellent corrosion resistance, aluminum alloys and aluminum matrix composites (AMCs) have been applications in the automobile industry such as cylinder blocks, pistons and piston insert rings [1]. In addition to this, the aluminum alloys and AMCs are widely utilized in marine, aerospace and defence industries [2][3][4][5]. One of the manufacturing process of the AMCs is powder metallurgy (PM).…”