Haiter Lenin Allasi (Author), Vettivel Singaravel Chidambaranathan (Author), Mary Vasanthi Soosaimariyan (Author)

Abstract

Cu matrix composites benefit from the high electrical and thermal conductivities of Cu and the mechanical wear/erosion resistance of hard reinforcement. In this study, an attempt has been made to determine the effect of the addition of reinforcement B4C in Cu-Ni-Sn. The B4C is reinforced to form a hybrid Cu matrix composite with powder metallurgy technique. The hybrid composites are obtained by milling, blending, and compacting the powders to obtain a fine grain-sized particle without aggregation. The grain size and particle nature were characterized using scanning electron microscope (SEM) and X-ray diffraction (XRD) techniques, respectively. The microstructure, density, hardness, and wear rate of the composites were studied. The pin-on-disc method is equipped to study the wear behaviour and coefficient of friction. The sintered density of the prepared Cu-15%Ni is 98.25 %, Cu-8%Sn is 98.20 %, Cu-15%Ni-8%Sn is 98.10 % and Cu-15%Ni-8%Sn-2%B4C is 95.26 % and lower specific wear rate has been recorded for Cu-15Ni-8Sn-2B4C 121×10-6 mm3/(Nm) and the addition of reinforcement B4C in Cu-Ni-Sn displays remarkable changes in wear rate and friction coefficient.

Keywords

powder metallurgy;copper;wear;characterization;density;composites;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 669:539.43
COBISS: 155014659 Link will open in a new window
ISSN: 0039-2480
Views: 21
Downloads: 0
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Other data

Secondary language: Slovenian
Secondary title: Obrabne lastnosti hibridnega kompozita Cu-Ni-Sn, ojačenega z B4C in pripravljenega po postopkih metalurgije prahov
Secondary keywords: metalurgija prahov;baker;obraba;karakterizacija;gostota;hibridni kompoziti;vrstični elektronski mikroskop;rentgenska difrakcija;
Type (COBISS): Article
Pages: str. 275-283
Volume: ǂVol. ǂ69
Issue: ǂno. ǂ5/6
Chronology: May/Jun. 2023
DOI: 10.5545/sv-jme.2022.423
ID: 19199146