Showing papers in "Scripta Metallurgica in 1982"

TL;DR: In this paper, a crystalline to amorphous transition was observed in shape memory NiTi alloos by in-situ electron irradiation in a high voltage electron microscope (1-2MeV).

TL;DR: The spinodal morphology is an irregular, interconnected vein-like structure characteristic of isotropic phase separation in a system in which the elastic strain attendant to the reaction is small.

TL;DR: In this paper, the authors present a set of maps of Zirconium, Zr and Zr alloys based on it, which are constructed using the method and equations given by Frost and Ashby.

TL;DR: In this article, the authors show that dislocation generation at the crack tip may be a very important parameter affecting the brittleness of the material and suggest that a dislocation-free zone does not imply purely elastic behavior for crack propagation since dislocations still can be emitted from the crack.

TL;DR: In this paper, the evolution of Ni-P deposits with varying P content was examined and it was shown that an amorphous-to-crystalline transformation occurs in the vicinity of 9.5 at.%P.

TL;DR: In this article, a multilinear model of the cyclic plastic zone model of fatigue crack growth was proposed. But the model was not applied to the case of aluminum alloys, and it was shown that transition to the threshold for fatigue crack formation is controlled by dispersoid particles.

TL;DR: In this paper, the misfit between nickel-base superalloys was measured by C.B.E.D. This method does not measure the "stress-free" misfit which determines the coarsening behavior, but does allow variations in lattice parameter due to fluctuations in solute content to be monitored.

TL;DR: Based on the fracture surface features of 2024-T3 aluminum alloy, this paper presented new mechanisms for crack growth retardation based on a micro-roughness model, which does not exclude the role of other factors such as residual stresses or blunting.

TL;DR: Kurkela et al. as mentioned in this paper investigated the effect of plastic deformation on hydrogen transport in a 2 I/4 Cr-IMo low strength pressure vessel steel and found that hydrogen transport associated with dislocation motion in nickel may occur at rates considerably greater than those due to lattice diffusion.

TL;DR: The solubility of hydrogen at 600°C and the diffusion rate at a given temperature were both found to be lower than reported previously, and activation energy for diffusion was nearly the same as in several earlier reports indicating that diffusion was the rate controlling step in all cases as discussed by the authors.