Title: An investigation on the effect of nickel content on the wear behaviour and mechanical properties of spinodal bronze alloy cast in metal mould

Authors: Karthik. V. Shankar; R. Sellamuthu

Addresses: Department of Mechanical Engineering, Amrita Vishwa Vidyapeetham University, Amrita Nagar, Coimbatore-641112, Tamil Nadu, India ' Department of Mechanical Engineering, Amrita Vishwa Vidyapeetham University, Amrita Nagar, Coimbatore-641112, Tamil Nadu, India

Abstract: Cu-Ni-Sn alloys with varying nickel wt% were melted in an electric furnace under argon atmosphere and were cast into metal mould. The specimens were solutionised at 825°C for 10 hrs and were aged at 250, 300, 350, 400 and 450°C for 1 to 5 hrs. The peak hardness was determined for different ageing temperatures and wear rate, coefficient of friction, ultimate tensile strength, yield strength and percentage elongation were determined with respect to the peak hardness. Peak hardness was found to be increasing with increase in nickel addition, wear rate decreased with increase in peak hardness, the coefficient of friction was found to be independent of hardness, ultimate tensile strength and yield strength was found to be increasing with increase in nickel content and percentage elongation decreased with increase in nickel content.

Keywords: ultimate tensile strength; UTS; yield strength; spinodal bronze; peak hardness; metal mould; Cu-Sn-Ni; copper alloys; tin; wear rate; coefficient of friction; COF; nickel content; alloy casting; metal moulds; percentage elongation.

DOI: 10.1504/IJMATEI.2016.079553

International Journal of Materials Engineering Innovation, 2016 Vol.7 No.2, pp.89 - 103

Received: 25 Apr 2015
Accepted: 20 May 2015
Published online: 02 Oct 2016 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article