论文信息 - Development of near‐bamboo and bamboo microstructures in thin‐film strips

Development of near‐bamboo and bamboo microstructures in thin‐film strips

A two‐dimensional grain growth model is used to study microstructural evolution in thin film strips. We focus on the strip’s transformation to the bamboo structure, in which individual grains transverse the width of the strip. We find that the approach to a fully bamboo structure is exponential, and that the rate of transformation is inversely proportional to the square of the strip width. When the simulation is extended to model grain boundary pinning due to grooving at grain boundary−free surface intersections, we find that there exists a maximum strip width to thickness ratio beyond which the transformation to the bamboo structure does not proceed to completion.

Carl V. Thompson | C. Thompson | H. Frost | H. J. Frost | D. T. Walton

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