Author
Pete S. Bate
Bio: Pete S. Bate is an academic researcher from University of Manchester. The author has contributed to research in topics: Superplasticity & Texture (crystalline). The author has an hindex of 13, co-authored 45 publications receiving 573 citations.
Papers
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TL;DR: The mechanisms by which textures can be inherited in transformed phases are discussed in this paper in the light of different transformation mechanisms and possible origins of variant selection in the different cases are reviewed and classified.
Abstract: The mechanisms by which textures can be inherited in transformed phases are discussed in the light of different transformation mechanisms. Possible origins of variant selection in the different cases are reviewed and classified. Evidence is presented for a hitherto unsuspected source of variant selection that arises from the stresses which are generated during transformation due to the presence of micro-segregation. Some model predictions show the potential effect of this phenomenon on textures in bainite or martensite.
101 citations
25 Aug 2004-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this paper, the authors compare the predictions of Taylor models, including those with relaxed constraints, and a finite element model with crystal plasticity constitutive laws, and conclude that the latter model cannot deal with the intragranular inhomogeneity of deformation in an adequate way, or that factors such as high-angle boundary migration may be important in deformation texture.
Abstract: The development of deformation texture in ferrite has been measured in cold rolled IF steel. This has been compared, in a quantitative way, to the predictions of Taylor models—including those with relaxed constraints—and a finite element model with crystal plasticity constitutive laws. The finite element model gave much better prediction of the overall levels of orientation density but failed to predict the relatively high level of {0 0 1}〈1 1 0〉 texture which occurred at strains greater than about unity. That feature was predicted by relaxed constraint Taylor models. It is argued that that prediction is a coincidence, and either the finite element model cannot readily deal with the intragranular inhomogeneity of deformation in an adequate way, or that factors such as high-angle boundary migration may be important in the development of deformation texture.
63 citations
10 Nov 2006-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this paper, an experimental in situ straining neutron diffraction study of deformation in two interstitial free steels with different grain sizes, one with 80 µm and one with 350 µm, was presented.
Abstract: Despite its significant effect on metal deformation, grain size is not usually considered when modelling the evolution of intergranular stresses. This paper presents an experimental in situ straining neutron diffraction study of deformation in two interstitial free steels with different grain sizes, one with 80 μ m and one with 350 μ m. These were compared against the predictions of crystal plasticity finite element modelling, which is scale insensitive. Only small differences in the evolution of both mean grain family elastic strains and peak width were detected. These were attributed to local texture effects.
44 citations
TL;DR: In this paper, a finite element analysis is used to test the ability of gradient plasticity models to predict length scale effects in deformation microstructures, showing that further development of such models is required if the effects observed in practice are to be predicted.
37 citations
TL;DR: In this article, the annealing conditions leading to the onset of abnormal grain growth were investigated via a series of grain growth experiments carried out on an Al-4wt%Cu alloy.
Abstract: Grain growth may occur in two forms, normal grain growth, characterized by a constant grain size distribution during growth, and abnormal grain growth, where one or more abnormally large grains may form in the microstructure. The presence of abnormally large grains in an otherwise uniform microstructure may be detrimental to the mechanical properties of a polycrystalline structure. Little is understood of the exact cause of abnormal grain growth. The annealing conditions leading to the onset of abnormal grain growth have been investigated via a series of grain growth experiments carried out on an Al-4wt%Cu alloy. The structure of which consisted of equiaxed grains (
29 citations
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TL;DR: In this article, the authors deal with the fundamental understanding of the process and its metallurgical consequences, focusing on heat generation, heat transfer and plastic flow during welding, elements of tool design, understanding defect formation and the structure and properties of the welded materials.
1,811 citations
TL;DR: In this paper, a review of continuum-based variational formulations for describing the elastic-plastic deformation of anisotropic heterogeneous crystalline matter is presented and compared with experiments.
1,573 citations
TL;DR: In this article, the influence of large (>1μm diameter) particles on the recrystallization behavior of magnesium alloys deformed in plane strain compression has been studied.
623 citations
TL;DR: In view of the interest attaching to the vaporisation and diffusion of solids, the following observations may be worthy of record as discussed by the authors, which may be seen as a good starting point for further research.
Abstract: IN view of the interest attaching to the vaporisation and diffusion of solids, the following observations may be worthy of record.
560 citations
TL;DR: In this article, the authors show that the grain refinement process is driven by grain subdivision at the colder periphery of the tools deformation zone, and the geometric effects of strain, which together reduce the overall high angle boundary spacing with increasing deformation.
420 citations