Effect of Si content on the dry sliding wear properties of spray-deposited Al–Si alloy

Wang, Feng; Liu, Huimin; Ma, Yajun; Jin, Yuansheng

doi:10.1016/j.matdes.2003.08.005

Cited by 49 publications

(10 citation statements)

References 8 publications

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“…10b. Similar wear debris morphology has been studied by Wang et al [24] at the load of 35.6 N for Al-12Si system. The author supported the idea that above a certain load, Si particles lose their ability to withstand the higher load.…”

Section: Morphological Analysis Of Worn Surface and Debrissupporting

confidence: 78%

Tribological Behaviour of SiC Particle Reinforced Al–Si Alloy

2011

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The purpose of this study is to explore the effect of SiC reinforcement along with immiscible element addition in spray formed Al-Si base alloy. The investigation is done for four different compositions, i.e., Al-Si base alloy, Al-Si/SiC, Al-Si-5Sn/SiC and Al-Si-10Sn/SiC composite. The dry sliding wear properties of base alloy and composites were investigated against EN 31 steel at five different normal loads (14.7, 24.5, 34.3, 44.1 and 53.9 N). The tests were carried out in dry sliding conditions with a sliding speed of 1.6 ms -1 over pin-on-disc tribometer. Each composition is tested at four different temperatures 50, 75, 100 and 150°C. To determine the wear mechanism, the worn surfaces of the samples were examined using scanning electron microscope (SEM). The composites emerge to be better wear resistant material than base alloy especially at higher loads. The optimum wear reduction was obtained in Al-Si-10Sn/SiC composite at all the different normal loads and temperatures.

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Section: Morphological Analysis Of Worn Surface and Debrissupporting

confidence: 78%

Tribological Behaviour of SiC Particle Reinforced Al–Si Alloy

2011

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“…Some TiB 2 particles were fractured and detached from the aluminum matrix at high load. The in situ TiB 2 particles entrapped between the specimen and counterface act as third-body abraders [23]. The microcracks nucleate blow the worn surface, and then grow and connect each other during sliding process.…”

Section: Resultsmentioning

confidence: 99%

Microstructure and Wear Resistance of Semisolid TiB₂/7050 Composites Produced by Serpentine Tube Pouring Technique

Gao

Yang

Han

et al. 2015

Materials and Manufacturing Processes

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TiB 2 /7050 (3, 6, and 9 wt%) composites slurries with globular were synthesized by in situ reaction and serpentine tube pouring techniques. The results showed that the semisolid 7050 alloy and 3, 6, and 9 wt%TiB 2 /7050 composites with average grain diameter of 28, 25, 20, and 19 mm and shape factor of 0.77, 0.83, 0.90, and 0.93, respectively, can be obtained at 660 C pouring temperature. With increasing TiB 2 content and curves number, the a-Al grain size was decreased. The composite melts have an effect of ''self-stirring'' when they flow through the serpentine tube, which is beneficial to make the primary nuclei with globular grains. Moreover, the wear resistance of TiB 2 =7050 7050 composites improved obviously with increasing in situ TiB 2 particles content and that the wear rate of 9 wt%TiB 2 =7050 composite was 79% lower than that of 7050 matrix alloy under 100 N applied load, 30 min sliding time, and 0.15 m=s sliding velocity.

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“…With increasing silicon content, especially from hypoeutectic to hypereutectic composition, the strength, tribological properties and corrosion resistance of the alloy increases significantly. However, the ductility, thermal conductivity and machinability show the opposite trend [7,8,9,10]. Moreover, the performance requirements of different parts of any particular component are diverse and can be demanding based on the stringent requirements for reduced waste and/or minimal use of resources.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Al–(12-20)Si Bi-Material Fabricated by Selective Laser Melting

Zhang

Jia

et al. 2019

Materials

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In this study, a combination of Al–12Si and Al–20Si (Al–(12-20)Si) alloys was fabricated by selective laser melting (SLM) as a result of increased component requirements such as geometrical complexity and high dimensional accuracy. The microstructure and mechanical properties of the SLM Al–(12-20)Si in as-produced as well as in heat-treated conditions were investigated. The Al–(12-20)Si interface was in the as-built condition and it gradually became blurry until it disappeared after heat treatment at 673 K for 6 h. This Al–(12-20)Si bi-material displayed excellent mechanical properties. The hardness of the Al–20Si alloy side was significantly higher than that of the Al–12Si alloy side and the disparity between both sides gradually decreased and tended to be consistent after heat treatment at 673 K for 6 h. The tensile strength and elongation of the Al–(12-20Si) bi-material lies in between the Al–12Si and Al–20Si alloys and fracture occurs in the Al–20Si side. The present results provide new insights into the fabrication of bi-materials using SLM.

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Effect of Si content on the dry sliding wear properties of spray-deposited Al–Si alloy

Cited by 49 publications

References 8 publications

Tribological Behaviour of SiC Particle Reinforced Al–Si Alloy

Tribological Behaviour of SiC Particle Reinforced Al–Si Alloy

Microstructure and Wear Resistance of Semisolid TiB₂/7050 Composites Produced by Serpentine Tube Pouring Technique

Microstructure and Mechanical Properties of Al–(12-20)Si Bi-Material Fabricated by Selective Laser Melting

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Effect of Si content on the dry sliding wear properties of spray-deposited Al–Si alloy

Cited by 49 publications

References 8 publications

Tribological Behaviour of SiC Particle Reinforced Al–Si Alloy

Tribological Behaviour of SiC Particle Reinforced Al–Si Alloy

Microstructure and Wear Resistance of Semisolid TiB2/7050 Composites Produced by Serpentine Tube Pouring Technique

Microstructure and Mechanical Properties of Al–(12-20)Si Bi-Material Fabricated by Selective Laser Melting

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Microstructure and Wear Resistance of Semisolid TiB₂/7050 Composites Produced by Serpentine Tube Pouring Technique