Wear behaviour of a Cu-Ni-Sn hybrid composite reinforced with B4C prepared by powder metallurgy technique

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

Povzetek

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.

Ključne besede

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

Podatki

Jezik:	Angleški jezik
Leto izida:	2023
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL FS - Fakulteta za strojništvo
UDK:	669:539.43
COBISS:	155014659
ISSN:	0039-2480
Št. ogledov:	21
Št. prenosov:	0
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarni naslov:	Obrabne lastnosti hibridnega kompozita Cu-Ni-Sn, ojačenega z B4C in pripravljenega po postopkih metalurgije prahov
Sekundarne ključne besede:	metalurgija prahov;baker;obraba;karakterizacija;gostota;hibridni kompoziti;vrstični elektronski mikroskop;rentgenska difrakcija;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 275-283
Letnik:	ǂVol. ǂ69
Zvezek:	ǂno. ǂ5/6
Čas izdaje:	May/Jun. 2023
DOI:	10.5545/sv-jme.2022.423
ID:	19199146