Thermomechanical Treatment and Electrical Resistivity Change of Cu-Ni-Si Alloys

Dependence of electrical resistivity on temperature and composition of Al–Cu alloys

Different compositions of Al–Cu alloys were directionally solidified upward with constant growth rate (V>18?6 mm s) and constant temperature gradient (G>4?7 K mm) using a Bridgman type growth apparatus. The variations in electrical resistivity r with temperature for directionally solidified Al–Cu alloys were measured in the range of 3732773 K using a standard four-point probe technique. Accordi...

Interplay between grain boundary segregation and electrical resistivity in dilute nanocrystalline Cu alloys

Article history: Received 10 February 2016 Received in revised form 22 May 2016 Accepted 8 June 2016 Available online xxxx The relationships betweenmicrostructure, controlled by alloying elements prone to grain boundary segregation, and electrical resistivity in sputtered nanocrystalline Cu were investigated. We find a non-monotonic dependence of themean grain size on solute concentration for b...

(100) surface segregation in Cu-Ni alloys.

Optimization of Artificial Ageing Time and Temperature on Evaluation of Hardness and Resistivity of Al-Si-Mg (Cu or/& Ni) Alloys

The factors necessary to obtain an optimal heat treatment that influence the hardness and resistivity of Al-6Si-0.5Mg casting alloys with Cu or/and Ni additions were investigated. The alloys were homogenised (24hr at 500C), solutionized (2hr at 540C) and artificially ageing at various times and temperatures. The alloys were aged isochronally for 60 minutes at temperatures up to 400C and isother...

Electrical resistivity of ferromagnetic nickel and iron based alloys

We discuss in detail the theoretical basis for the two-band model with spinmixing which has been widely applied to the analysis of the transport properties of ferromagnetic metals. This model is shown to have much more general validity than the original presentation suggested. The model is then applied to resistivity data in Ni and Fe based alloys to obtain a consistent set of parameters for th...