Effect of Chromium on Tensile and Fatigue Behaviour of Copper Nickel Spinodal Alloy
Journal Title: International Journal of Mechanical and Production Engineering Research and Development (IJMPERD ) - Year 2017, Vol 7, Issue 6
Abstract
This paper considers the construction of a CU-Ni-Cr Spinodal alloy. The objective of the work is, to prepare an alloy with commercially best composition and treated it with spinodal decomposition, and to study the effect of Chromium on Tensile and Fatigue behaviour of it. To analyze spinodally decomposed product Optical and transmission electron microscopic revision, have been undertaken. Homogenized and solution treated specimens, were aged at various temperatures for different period of time. Aged specimens were tested for tensile and fatigue behaviour. Tensile stresses are related to the hardness of the alloy and fatigue, is weakening of the alloy result of stresses developed, due to cyclic load. The correlation of mechanical properties with microstructure, then demonstrates a dependence of yield stress growth on lattice parameter change, between the two phases. The addition of Cr resulted, in an increase in ultimate tensile strength, proportional limit stress and fatigue strength, over the Cr-free alloy. The results obtained by calculation and experimentally showed, a good agreement.
Authors and Affiliations
Sagar C. Jirapure, Atul B. Borade
Keywords
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