Sentence examples for boundaries in polycrystals of from inspiring English sources

The growth of γ′-precipitate free zones (PFZs) along grain boundaries in polycrystals of the γ′-strengthened nickel-based superalloy NIMONIC PE16 and the ensuing effects on the yield strength, the ultimate tensile strength, and the plastic strain to fracture have been experimentally investigated.

A novel geometric analysis method for determination of the three-dimensional orientation of extended planar dislocation boundaries in polycrystals based on TEM measurements is presented.

Grain boundaries in polycrystal act as an impediment to the dislocation motion for the following two reasons: (1) dislocation must change its direction of motion due to the different orientations of grains; (2) discontinuity of slip planes from one grain to another [23].

The current status of "grain boundary engineering" is overviewed, i.e. the deliberate manipulation of grain boundary crystallography in polycrystals in order to produce a material containing grain boundaries which have superior properties compared to average boundaries.

Model polycrystals with a single-component texture are assumed to consist of preferably oriented grains A (the main texture component) and randomly oriented grains B. Therefore, there are three types of grain boundaries in these polycrystals: high-angle A B and B B boundaries, and A A boundaries with a smaller disorientation.

The ramifications of this finding for modeling grain boundary sliding in polycrystals are discussed.

It is suggested that a configuration of typically brittle general boundaries in a polycrystal can be transformed into another one consisting of non-brittle special boundaries under suitable annealing conditions by boundary inclination via boundary migration without any change of grain orientations.

This paper presents an appraisal of investigations which feature statistics of grain boundary plane distributions in polycrystals.

It is worth noting that the powder sintered copper with polycystic structure has much lower thermal conductivity than the monocrystal copper (402 W/mK) due to the existence of grain boundary and defects in polycrystals [25].

E. Iesulauro, K. Dodhia, T. Cretegny, C.-S. Chen, C. R. Myers, and A. R. Ingraffea, "Continuum-atomistic modeling for crack initiation and propagation in polycrystals", Proceedings of the 10th International Conference on Fracture (2001).

A coarse-grained extension of a recent nanoscale elasto-plastic model of polar dislocation and disclination density fields is developed to model grain boundary-mediated plasticity in polycrystals.