Dry Sliding Wear Behavior of Wrought Al-12.7Si-0.7Mg Alloy

In present paper, the dry sliding wear behaviors of wrought Al-12.7Si-0.7Mg alloy have been investigated using a pin-on-disc machine. The effect of various parameters, such as alloy conditions, sliding speed, and normal pressure, has been investigated. Wear surface was characterized by SEM/EDX microanalysis. The microstructure, hardness and tensile properties of the extruded profile were investigated with the aim of understanding the wear and friction mechanisms. The present results reveal an improvement in the mechanical and tribological properties, obtained due to microstructure characterized by fine Si particles uniformly distributed in the Al matrix of fine equiaxed grains, as promoted by hot extrusion. It was also revealed that higher hardness and the lower aspect ratio of eutectic Si particles contributed to the better wear resistance.

Download Full-text

Study of Dry Sliding Wear and Immersion Corrosion on Al 5083 Reinforced With MWCNT, MoB, and Ni

International Journal of Surface Engineering and Interdisciplinary Materials Science ◽

10.4018/ijseims.2020070103 ◽

2020 ◽

Vol 8 (2) ◽

pp. 38-51

Author(s):

Sajeeb Rahiman ◽

Robinson Smart

Keyword(s):

Sliding Wear ◽

Wear Behavior ◽

Dry Sliding Wear ◽

Dry Sliding ◽

Multiwalled Carbon ◽

Immersion Corrosion ◽

Alloy Material ◽

Molybdenum Boride ◽

Pin On Disc ◽

Corrosion Behaviors

Dry sliding wear and immersion corrosion behaviors of Al 5083-based hybrid composite reinforced with multiwalled carbon nanotube (MWCNT), Molybdenum boride (MoB) and nickel (Ni) are studied with different weight percentages. The reinforcement weight percentages of MWCNT ranges from 0 to 1.5, that of MoB from 1 to 4 and for Ni from 2 to 8. Dry sliding wear behavior at room temperature is studied using Pin on Disc by varying the sliding distances from 500 to 2000m, load from 10 to 40 N and sliding velocity from 0.25 to 1.75m/s. The wear studies revealed that there is a considerable decrease in wear rate for composites than the alloy material with increase in %wt of reinforcements for all test parameters. The worn surface analysis revealed that there are two types of wear mechanisms namely abrasive and adhesive. The uniform immersion corrosion tests also showed decreasing rate with increase in reinforcements.

Download Full-text

Effect of Cd on Microstructure and Dry Sliding Wear Behavior of (Al-12%Si) Alloy

The Journal of Engineering Research [TJER] ◽

10.24200/tjer.vol7iss1pp1-10 ◽

2010 ◽

Vol 7 (1) ◽

pp. 1 ◽

Cited By ~ 2

Author(s):

Muna K. Abbass

Keyword(s):

Friction Coefficient ◽

Sliding Wear ◽

Wear Behavior ◽

Base Alloy ◽

Dry Sliding Wear ◽

Dry Sliding ◽

Wear Properties ◽

Hard Particles ◽

Pin On Disc ◽

Steel Disc

The aim of the present research is to study the effect of cadmium addition on microstructure and wear behavior of the alloy (Al-12%Si) under dry sliding conditions. Wear behavior was studied by using the Pin-On- Disc technique under different conditions at applied loads 5-20 N, at constant sliding speed and in constant time. The steel disc hardness was 35HRc. All alloys were prepared with different percentages of cadmium (1.0, 2.0, 3.0) wt%. Also the base alloy was prepared by melting and pouring the molten metal in a metallic mold. It was found that the cadmium addition to Al-Si matrix decreases the wear rate and improves the wear properties for alloys containing -Cd under loads above 10N. It was also found that the alloy Al-12%Si containing 3%Cd is the best alloy in wear resistance and friction coefficient. This is due to presence of the Cd-phase as cuboids or hard particles distributed in a eutectic matrix which reduces the friction coefficient at high loads (20N).

Download Full-text

Fiber loading and treatment effects on dry sliding wear of Palmyra fruit fiber composites

Science and Engineering of Composite Materials ◽

10.1515/secm-2014-0101 ◽

2016 ◽

Vol 23 (2) ◽

pp. 217-226 ◽

Cited By ~ 2

Author(s):

Irullappasamy Sankar ◽

Durairaj Ravindran

Keyword(s):

Sliding Wear ◽

Natural Fiber ◽

Wear Behavior ◽

Fiber Composites ◽

Dry Sliding Wear ◽

Dry Sliding ◽

Sliding Velocity ◽

Fiber Loading ◽

Polyester Composite ◽

Pin On Disc

AbstractThis study focused on the dry sliding wear behavior of the natural fiber called borassus fruit fiber (Palmyra fruit fiber) reinforced polyester composite. Composites are molded with different fiber weight fractions. Composites are fabricated by using both the untreated and the mercerized fibers. Mercerizations of the fibers are done with 1 N solution. The structural properties like tensile, flexural, and impact strengths are experimented as per ASTM and reported. The dry sliding wear study was done using the Pin-on-Disc apparatus as per ASTM G99. In particular, more emphasis has been devoted for wear behaviors at different velocity conditions and loads. Based on the experimental data, the optimum sliding velocity and the corresponding load were suggested.

Download Full-text

Dry Sliding Wear Behavior of Ti-6Al-4V Alloy

Materials Science Forum ◽

10.4028/www.scientific.net/msf.830-831.333 ◽

2015 ◽

Vol 830-831 ◽

pp. 333-336 ◽

Cited By ~ 1

Author(s):

M. Ananda Jothi ◽

S. Ramanathan

Keyword(s):

Sliding Wear ◽

Wear Behavior ◽

Energy Dispersive Spectrometer ◽

Dry Sliding Wear ◽

Dry Sliding ◽

Wear Rates ◽

Pin On Disc ◽

Marine Applications ◽

Sliding Distance ◽

Wear Tests

Titanium and its alloys exhibit a unique combination of physical and corrosion resistance properties which make them ideal materials for space flight engine component such as disks and blades of compressor, marine applications, chemical industries and many bio medical applications. However the use of these materials is limited due to its poor tribological properties. Dry sliding wear tests were performed on Ti-6Al-4V using a pin-on-disc (EN31 steel) configuration. Wear rates were measured with different load and sliding velocity at a constant sliding distance. Microstructures of worn surfaces were characterized by scanning electron microscope (SEM) and energy dispersive spectrometer (EDS).

Download Full-text

Dry Sliding Wear Behavior of WC and Cr-C Coatings on Plain Carbon P/M Steel Substrates Using HVOF Coating Method

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.735.54 ◽

2017 ◽

Vol 735 ◽

pp. 54-58

Author(s):

D. Shanmugasundaram ◽

K. Gunasekaran ◽

R. Chandramouli ◽

N. Natarajan

Keyword(s):

Sliding Wear ◽

Wear Behavior ◽

Steel Substrate ◽

Wear Testing ◽

Good Effect ◽

Dry Sliding Wear ◽

Dry Sliding ◽

Factors Affecting ◽

Hvof Coating ◽

Pin On Disc

The present research paper covers statistical analysis of the major tribological factors affecting the dry sliding wear behavior of Tungsten Carbide (WC) and Chromium Carbide (Cr-C) coatings on plain carbon P/M steel substrate using High Velocity Oxy Flame (HVOF) Coating Technique. Experiments were conducted on pin-on-disc wear testing equipment. The various parameters related to wear such as wear rate, Coefficientof Friction of the coated Disc, Hardness and Surface Roughness were measured.In comparison, WC and Cr-C coating, WC coating has comparably good effect.

Download Full-text

Composite reinforcement by oxide TiO2

Science and Engineering of Composite Materials ◽

10.1515/secm-2012-0042 ◽

2013 ◽

Vol 20 (1) ◽

pp. 7-14 ◽

Cited By ~ 2

Author(s):

Mehrdad Soltani ◽

Seid Abbas Hoseininejad

Keyword(s):

Wear Rate ◽

Wear Debris ◽

Sliding Wear ◽

Wear Behavior ◽

Dry Sliding Wear ◽

Dry Sliding ◽

Volume Loss ◽

Transfer Layer ◽

Pin On Disc ◽

Sem Micrograph

AbstractThis composite has been developed by solidification processing by the addition of 0.5–3. 5 wt% powders of oxide TiO2 to molten Al-Cu alloy. The dry sliding wear behavior of pins of cast composite, fabricated by the solidification of the melt-particle slurry in mold, has been determined by pin-on-disc wear tests carried out conventionally and while removing wear debris by camel brush. The accumulated volume loss in composites increases linearly with increasing the sliding distance, and the wear rate increases more or less linearly with increasing load. The increasing particle content decreases the wear rate at a given load. The accumulated volume loss is considerably higher when the wear debris is removed by a camel brush during dry sliding wear. The relatively brighter compacted oxide transfer layer could be observed in the SEM micrograph of worn pin surfaces of the composites developed by the addition of TiO2. At higher loads, the oxide debris are expected to get better compacted to form the transfer layer, spread over a larger area of the sliding surface, and thus, their removal causes a larger wear compared to that without the removal of wear debris.

Download Full-text