scispace - formally typeset
Search or ask a question
Author

Manish Roy

Other affiliations: Vienna University of Technology
Bio: Manish Roy is an academic researcher from Defence Metallurgical Research Laboratory. The author has contributed to research in topics: Coating & Tribology. The author has an hindex of 24, co-authored 90 publications receiving 2116 citations. Previous affiliations of Manish Roy include Vienna University of Technology.


Papers
More filters
Journal ArticleDOI
TL;DR: In this paper, the authors give an overview of the current status and future trends of wear at elevated temperature of selected metallic materials and discuss the salient features which have helped us to gain in depth scientific knowledge of elevated temperature wear are discussed in the light of recent developments.

227 citations

Journal ArticleDOI
TL;DR: In this paper, the authors characterized the friction and wear behavior of aluminum matrix composites reinforced with particulates of SiC,TiC, TiB2, and B4C, and found that the coefficient of friction of the composites is about 30 pct lower than that of pure aluminum.
Abstract: The aim of the present investigation is to characterize the friction and wear behavior of aluminum matrix composites reinforced with particulates of SiC, TiC, TiB2, and B4C. Sliding wear tests were conducted at two loads (80 and 160 N) using a pin-on-disc apparatus and under dry conditions. The results of the investigation indicate that the coefficient of friction of the composites is about 30 pct lower than that of pure aluminum, while the wear rates of the com- posites are lower by a factor of about 3 and 100 at loads of 80 and 160 N, respectively. The type and size of the reinforcement have a negligible influence on the wear rate and the coefficient of friction of the composites. However, the volume fraction of the reinforcement has a marginal influence on the wear rate. Though the coefficients of friction and the wear rates of the com- posites were broadly similar, the Al-TiC composite alone exhibits a somewhat higher wear rate. The above results of the present investigation have been rationalized on the basis of the inverse rule of mixtures and the existing models for friction and wear.

199 citations

Journal ArticleDOI
TL;DR: In this article, the salient features characteristic of room temperature and elevated temperature erosion of metallic materials are described and a review of some of the recent results, which in their opinion, have enhanced our current understanding in the area of solid particle erosion of metal materials.

193 citations

Journal ArticleDOI
01 Jan 1994-Wear
TL;DR: In this paper, the solid particle erosion behavior of four different types of polymer matrix composites reinforced with glass fibres has been characterized and compared with the available data in the literature on similar materials.

161 citations

Journal ArticleDOI
01 Nov 1990-Wear
TL;DR: In this article, a new parameter called erosion efficiency, capable of identifying the dominant micromechanism leading to solid particle erosion, has been introduced, and the objective of this paper is to demonstrate the usefulness of this parameter by considering the large body of data in the literature pertaining to the solid particle degradation of metallic materials, ceramics, cermets and coatings under normal impact conditions.

124 citations


Cited by
More filters
Journal ArticleDOI
TL;DR: In this article, the influence of applied load, sliding speed, wearing surface hardness, reinforcement fracture toughness and morphology are critical parameters in relation to the wear regime encountered by the material.

519 citations

Journal ArticleDOI
Haizhi Ye1
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.
Abstract: The development of Al-Si alloy and its based material for engine application is reported in this paper, focusing on improving the material’s fatigue limit and wear resistance, which are two important properties for engine block materials. The paper begins with a description of the microstructure (primary and eutectic phases, intermetallics, and casting defects) of Al-Si alloy and its effects on this material’s fatigue and wear behaviors. Then, some recent techniques to enhance these two properties are discussed such as alloying, composite production, and casting.

460 citations

01 Jan 2001
TL;DR: In this paper, experimental and theoretical aspects of applying electrochemical methods in tribology are discussed and recent results obtained with passivating metals in the authors' laboratory are presented, and it is shown that these parameters can significantly affect the electrochemical response of a tribocorrosion system.
Abstract: Tribocorrosion is an irreversible transformation of a material resulting from simultaneous physico-chemical and mechanical surface interactions in a tribological contact. Electrochemical methods are well suited for the study of tribocorrosion phenomena because they allow one to simulate the corrosive effect of the environment by imposing a fixed potential. Furthermore, the measurement of the anodic current permits one to determine the amount of material removed by oxidation as opposed to mechanical wear. In the present paper, experimental and theoretical aspects of applying electrochemical methods in tribology are discussed and recent results obtained with passivating metals in the authors' laboratory are presented. The importance of controlling the mechanical parameters and the contact geometry is stressed, and it is shown that these parameters can significantly affect the electrochemical response of a tribocorrosion system.

352 citations

Journal ArticleDOI
01 Oct 1995-Wear
TL;DR: In this article, a general framework identifying groups of interactive parameters and assessing wear material performance through investigating these groups of parameter is presented, which is suggested that material loss can be rationalized from the understanding and description of the three wear precursors which delineate the groups of parameters, being surface, subsurface and third body behavior.

344 citations

Journal ArticleDOI
TL;DR: In this article, the emerging methods of coating deposition by suspension and solution thermal spraying are described, where liquid suspensions of fine powders and liquid precursors are injected into flames and/or jets generated in the torches.
Abstract: The emerging methods of coating deposition by suspension and solution thermal spraying are described. The liquid suspensions of fine powders and liquid precursors are injected into flames and/or jets generated in the torches. The formulation and stability of suspensions as well as the methods of fine powders synthesis are briefly described. Typical solutions, being often the liquid organo–metallics are also briefly described. An important problem of injection of liquids into jets and flames is then presented. Two principal modes of injection, used at present, are outlined, i.e.: (i) atomization; and, (ii) injection of a continuous jet. Subsequently, the phenomena occurring in flames and plasma jets are discussed and the major differences to these occurring during conventional spraying are stressed up. The build up of coatings starting from the impact of fine particles on the substrate is described and typical microstructures of suspension and solution sprayed coatings are shown. Some properties of the sprayed coatings, including mechanical, electrical, chemical, and thermophysical ones are collected and presented. Finally, the emerging applications of coatings are shown and the possible future applications are discussed.

327 citations