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Effect of nickel on hot ductility of binary copper-nickel alloys

1978; Taylor & Francis; Volume: 5; Issue: 1 Linguagem: Inglês

10.1179/mt.1978.5.1.100

2057-7826

J. P. Chubb, J. Billingham,

Metallurgical and Alloy Processes

AbstractAbstractThe effect of nickel on the hot ductility of binary copper-nickel alloys has been investigated by carrying out high-strain-rate tensile tests over a wide range of temperature in a modified 'Gleeble' machine. It has been shown that the intermediate-temperature ductility decreases as the nickel content increases, with the elongation at intermediate temperatures falling from 40% in a 6% nickel alloy to 10% in a 30% nickel alloy. The fracture mode also changes, becoming progressively intergranular as the ductility decreases. The role of nickel in modifying deformation behaviour at temperature in such alloys is discussed.