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中南大学学报(英文版)

Journal of Central South University

Vol. 26    No. 10    October 2019

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Effect of composition and aging time on hardness and wear behavior of Cu-Ni-Sn spinodal alloy
S. ILANGOVAN, R. VAIRA VIGNESH, R. PADMANABAN, J. GOKULACHANDRAN

Department of Mechanical Engineering, Amrita School of Engineering, Coimbatore,
Amrita Vishwa Vidyapeetham, India

Abstract:Copper alloyed with various compositions of nickel and tin were cast into molds under argon atmosphere. The cast rods were homogenized, solution heat treated, followed by aging for different time duration. The specimens were characterized for microstructure and tested for microhardness and wear rate. A hybrid model with a linear function and radial basis function was developed to analyze the influence of nickel, tin, and aging time on the microhardness and tribological behavior of copper-nickel-sin alloy system. The results indicate that increase in the composition of nickel and tin increases the microhardness and decreases the wear rate of the alloy. The increase in the concentration of nickel and tin decreases the peak aging time of the alloy system.

 

Key words: spinodal decomposition; microhardness; wear; radial basis function; model

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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