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Three-body abrasive wear of 0.2wt%-C martensitic steel was conducted in a dry-sand rubber wheel test apparatus following non-standard G65-16 test procedure. The specific wear rate (SWR) of the experimental alloy was compared against other microstructures of equivalent hardness. It was observed that the SWR of the experimental alloy follows the Type-1 category, in which hardness plays a major role...
The effect of friction stir processing (FSP) on mechanical and wear behavior was investigated for A-286 stainless steel, an Fe–Ni–Cr based austenitic, precipitation hardened alloy. The alloy was characterized in different processed conditions, namely as rolled (AR)+aged and FSP+aged. High frequency reciprocating sliding wear behavior and wear mechanisms were investigated at room temperature. The Vickers...
The abrasive wear of carbide-free bainitic steel under dry rolling/sliding conditions has been studied. It is demonstrated that this nanostructure, generated by isothermal transformation at 200°C, has a resistance to wear that supersedes that of other carbide-free bainitic steels transformed at higher temperatures. The experimental results in combination with a theoretical analysis of rolling/sliding...
The abrasive wear of three metallurgical structures with radically different hardnesses has been investigated for the same steel. The particular steel concerned is a recent innovation capable of generating extremely fine distributions of crystals. The austenite in the alloy nevertheless has the capability of uniformly transforming into extremely fine pearlite, nanostructured bainite, and plate martensite...
Deformation microstructures generated during the high temperature sliding of a wrought Mg–3% Al–1% Zn alloy (AZ31) were investigated to delineate the micromechanisms of wear and material transfer to a tool steel counterface. Dry pin-on-disc type tests were conducted at 673K. Optical profilometry and analytical microscopy revealed that material transferred to the counterface was heavily deformed and...
This paper describes the results of dry sliding wear tests of aluminium alloy (Al–Zn–Mg) and aluminium (Al–Zn–Mg)–10, 15 and 25wt.% SiCp composite was examined under varying applied pressure (0.2 to 2.0MPa) at a fixed sliding speed of 3.35m/s. The sliding wear behaviour was studied using pin-on-disc apparatus against EN32 steel counter surface, giving emphasis on the parameters such as coefficient...
In the present study, an attempt was made to examine the synergic effect of SiC particle reinforcement and heat treatment on the two body abrasive wear behavior of an Al–Si alloy (BS: LM13) under varying loads and abrasive sizes. Silicon carbide particles with size 50–80μm were reinforced in Al–Si alloy, in varying concentration (10wt% and 15wt%), by solidification process (vortex technique) and the...
The Erosion–corrosion behavior of a SiC particle reinforced Al–Si alloy has been studied in two different environments, namely saline and acidic, to simulate sea water and mining atmospheres, respectively. These studies were performed at different sand concentrations (20–40wt%) and varying rotational speeds (700–900rpm). It is noted from the present study that the composite exhibited better wear resistance...
An attempt has been made to study the two body abrasive wear behavior of LM13 alloy and LM13-15wt.% SiC composite, in cast and heat-treated conditions, as a function of applied load. The wear constant (K) was calculated based on the wear rate data, which signifies the probability of formation of wear particles during abrasive wear process. It was observed that the wear constant decreases with load...
A study towards the examination of the abrasive wear behaviour and other characteristics, viz. microstructure, tensile properties and hardness of a high strength low alloy steel has been carried out in order to establish a correlation amongst the parameters and to optimize the microstructural features and mechanical properties for superior wear performance. The steel was subjected to various heat...
Three-body abrasive wear characteristics of a cast zinc-aluminium alloy - 10wt.% alumina particle composite have been analysed in the present investigation. Silicon carbide, sand and zircon particles were used as the abrasive media. In order to see the influence of alumina dispersoid particles on the abrasive wear behaviour, the similarly processed matrix alloy was also tested under identical conditions...
The erosive-corrosive wear rate of a cast AlSi (LM6) alloy, 10 wt.% SiC particle composite in a slurry consisting of water containing sulphuric acid and hydrochloric acid and 40 wt.% sand (size: 150 ± 10 μm), has been predicted through factorial design of experiments. The wear rate (Y) can be expressed in terms of the coded values of radial distance (x 1 ), angle of inclination of the samples...
Wear properties of engineering components encountering slurry conditions during operation can be improved by overlaying with a wear resistant material. The present paper discusses the effects of different experimental conditions on the wear rate of a low carbon steel on overlaying with a wear resistant material. Distance has a mixed effect on the wear rate. Further, wear rate increases with increase...
This study discusses some observations made during the wear testing of hardfaced layers deposited on a low carbon steel. Two kinds of (wear resistant) hardfacing materials were (separately) overlayed on a steel substrate and characterized for their microstructural features and wear behaviour. Conditions of wear testing were varied in terms of the content of sand particles in the slurry, the speed...
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