On the Zener drag

TL;DR: In this paper, the transition elements Zr and Mn form dispersoids in aluminium alloys and are extensively used in order to control the microstructure during heat exposure, i.e. to prevent recrystallization and strength loss after deformation hardening.

TL;DR: In this paper, a phase field simulation is carried out to study the effect of different micropores on the grain growth kinetics of porous ceramics, and results indicate that the average grain size and distribution are highly influenced by the topological shape of the second-phase.

TL;DR: In this paper, the authors used confocal laser scanning microscopy to simulate the grain growth behavior of microalloyed steel during continuous casting, and the effect of the cooling rate during the solidification, T γ (the starting temperature for austenite grain growth) and steel composition on the behaviour of austenites grain growth were analysed.

TL;DR: In this paper, the detailed movement of a dislocation line through a random array of point obstacles in the glide plane has been examined, using a digital computer, on the basis of the line tension approximation.

TL;DR: In this article, the authors examined the impact of a random distribution of point-like obstacles to the movement of dislocations and proved that a critical applied stress exists; it is determined by a critical value of the fraction of passable obstacles such that the average dislocation segment can keep moving.

TL;DR: In this paper, the ease of motion of a dislocation in a crystal is influenced by changes in lattice parameter and elastic modulus, leading to the production of interface dislocations and suggest a work hardening model for one class of precipitation hardened alloys.