Aluminum alloys exhibit recrystallization kinetics that vary strongly with composition. The conventional understanding is that certain alloying elements, e.g. chromium, retard grain boundary motion due to the formation of fine dispersions of second phase particles, giving rise to particle drag of boundaries. There is countervailing evidence, however, that suggests that solute drag provides a st...

High energetic ions can lead to the formation of long columnar defects along the ion trajectories, so called “ion tracks”. In amorphous metals, overlapping tracks produce macroscopic anisotropic growth phenomena [1]. Characterization and imaging of single ion tracks in these materials is challenging and has been successful only in a few cases using chemical etching [2], scanning probe [3] and t...

This paper describes an investigation into the suitability of Gaussian process models for predicting the microstructure evolution arising from static recrystallization. These methods have the advantage of not requiring a prior understanding of the micromechanical processes. They are wholly empirical and use a Bayesian framework to infer the probability distribution of data, given a ‘training se...

We simulate one-dimensional competitive reversible binding of many diffusing particles to a single, saturable, static site. The particles are initially randomly distributed, and either one or none is initially bound to the site. The time dependence of the binding probability (site occupancy) is compared with an approximation involving singleparticle diffusion with a nonlinear, locally bimolecul...

The strength of any material is dependent on the grain size and percentage of volume fraction recrystallization. In this Paper, a new approach for controlling microstructure development during hot working process by percentage of volume fraction recrystallization is proposed. Here two different methods are employed. One of the approaches is based on the Optimal Control theory and involves the d...

Abstract. Ti-6Al-7Nb alloy was quenched below and above the β-phase field processed by high-pressure torsion (HPT) to produce different grain sizes in ultra-fine range. The influence of temperature strain rate over superplastic properties, activation energy sensitivity were evaluated high tensile tests. mechanical properties complemented with Vickers microhardness measurement heat treated HPT-p...

In the present study, the mechanical behavior of AA5052 aluminum alloy during cold deformation and subsequent isothermal annealing in a temperature range of 225-300oC was investigated using the uniaxial tensile test data. It is found that by increasing the annealing time and temperature the material yield strength is decreased. The microstructural investigations of the annealed samples show tha...

We present an original approach for predicting the static recrystallization texture development during annealing of deformed crystalline materials. The microstructure is considered as a population subgrains and grains whose sizes boundary properties determine their growth rates. model input parameters are measured directly on orientation maps by electron backscattered diffraction. anisotropy in...