Anti-Wear Property of Aluminum⁻Silicon Alloy Treated by Chemical Etching, Mechanical Honing and Laser Finishing.
Reads0
Chats0
TLDR
The laser finishing could not only protrude the silicon particle but also make its edge rounded and smooth, which decreased the stress concentration, therefore, the Al–Si alloy cylinder liner treated with laser finishing had the best anti-wear performance.Abstract:
To enhance the anti-wear property of aluminum-silicon (Al-Si) alloy, three processing technologies-chemical etching, mechanical honing and laser finishing-were compared in terms of their effects on anti-wear performance. The treated Al-Si alloy cylinder liner samples were worn against a piston ring by a reciprocating sliding tribotester; the anti-wear performance was represented by the friction coefficient and wear loss; and the wear mechanism was determined by establishing stress contact models. The results showed that the best time for both the chemical etching and mechanical honing treatments was 2 min, and the optimal laser power was 1000 W for the laser finishing treatment. The three processing technologies could all remove the aluminum layer and make the silicon protrude on the surface to avoid the plastic flow of aluminum during the friction process. The laser finishing could not only protrude the silicon particle but also make its edge rounded and smooth, which decreased the stress concentration. Therefore, the Al-Si alloy cylinder liner treated with laser finishing had the best anti-wear performance.read more
Citations
More filters
Journal ArticleDOI
Robust ceramic based self-lubricating coating on Al–Si alloys prepared via PEO and spin-coating methods
TL;DR: In this article, a ceramic-based self-lubricating coating was successfully fabricated on Al-based plasma electrolytic oxidation (PEO) ceramic coating in this work, which was reinforced with thermosetting polyimide (PI) containing tungsten disulfide (WS2) fillers.
Book ChapterDOI
Automotive and construction applications of fiber reinforced composites
TL;DR: In this article, the automotive and construction applications of fiber-reinforced polymer composites are explained in detail in detail, and a great variety of construction materials have been designed using FRCP, ranging from housing and interior design to fencing and decking.
Journal ArticleDOI
Repeatability of the fatigue performance of additively manufactured A357.0 under different thermal treatment conditions
Silvio Defanti,Elena Bassoli +1 more
TL;DR: In this paper, an in-situ annealing strategy was applied by pre-heating the build platform, in order to relieve residual stresses and reduce anisotropic effects upon processing.
Journal ArticleDOI
The Influence of Laser Surface Remelting on the Tribological Behavior of the ECAP-Processed AZ61 Mg Alloy and AZ61-Al2O3 Metal Matrix Composite.
Beáta Ballóková,Ladislav Falat,Viktor Puchý,Zuzana Molčanová,Michal Besterci,Róbert Džunda,Aqeel Abbas,Song-Jeng Huang +7 more
TL;DR: The results showed that the best improvement has been obtained for the laser modified AZ61–10 wt.% Al2O3 nanocomposite showing about a 48% decrease in the specific wear rate compared to the laser untreated AZ61 base material.
Journal ArticleDOI
Enhancement of the hardness and wear-resistance of aluminum-silicon alloy using atmospheric plasma-sprayed ZrO 2 , Al 2 O 3 -ZrO 2 multilayer, and Al 2 O 3 /ZrO 2 composite coatings
TL;DR: In this article, the authors used atmospheric plasma-sprayed ZrO2, Al2O3-ZRO2 multilayer and Al 2O3/ZrO 2 composite coatings to improve the hardness and wear resistance of aluminum-silicon alloys.
References
More filters
Journal ArticleDOI
An overview of the development of Al-Si-Alloy based material for engine applications
TL;DR: In this article, the development of Al-Si alloy and its based material for engine application is reported, focusing on improving the material's fatigue limit and wear resistance, which are two important properties for engine block materials.
Journal ArticleDOI
Adhesive wear behaviour of cast aluminium–silicon alloys: Overview
TL;DR: In this paper, various technological aspects related to adhesive wear of cast aluminium-silicon (Al-Si) alloys are described and discussed, and a number of hypothesis and theories have been proposed in order to explain the different phenomenon related with wear and friction, and influence of test parameters (such as load, sliding speed, counter-surface) and work material properties (like mechanical and metallurgical) on tribological behaviour of aluminium and silicon alloys have been presented and discussed.
Journal ArticleDOI
A parametric study of the relationship between microstructure and wear resistance of Al–Si alloys
TL;DR: In this article, the effect of the individual contribution of each micro-structural feature on the wear resistance was isolated using a method of pair-wise comparison, and the steady state wear rates (W) in each sub-regime of the mild wear showed a power-law dependence to the applied load.
Journal ArticleDOI
Wear behaviour of cast hypereutectic aluminium silicon alloys
TL;DR: In this article, the influence of alloying elements on wear behavior of binary and multi-component cast hypereutectic aluminium alloys has been reported, and wear surface and wear debris was conducted to analyse the mode of wear and wear mechanism.
Journal ArticleDOI
Tribological characteristics of one-process and two-process cylinder liner honed surfaces under reciprocating sliding conditions
TL;DR: In this paper, the effect of surface texture on cylinder liners wear was investigated on a reciprocating tester and it was found that wear of two-process surfaces was lower than that of one process surfaces characterized by the same Sq parameter.