Dataset for the paper: R. Fernandez, G. Gonzalez-Doncel, Stefanos Papanikolaou, Giovanni Bruno, Mikko J. Alava. 2023. Creep in polycrystalline metals as a phase transition: experiments and a minimal random-field Ising model. Materials Research Letters (submitted)

Experimental tests have been carried out by applying a constant stress to the materials under study (Al-99.8% as well as AA6061alloy) and increasing the temperature from room temperature to 800K. The heating rate used was 2K/min. We implemented the three-dimensional random-field Ising model, both as function of stress and as a function of temperature for cubic supercells of 16×16×16 sites. We also investigated the behavior of the secondary creep strain rate ε ˙_SS as a function of temperature at different disorder strength ∆ = 0, 0.5, 1, 1.5, 2, i.e. different applied stress.