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Microstructure-property optimization in metallic Glasses [electronic resource] / Baran Sarac.

9783319130330 electronic book
3319130331 electronic book
9783319130323

Cham [Switzerland] : Springer, [2015]

English

1 online resource.

10.1007/978-3-319-13033-0 doi

TN693.M4 M53 2015eb

620.16

This thesis consists of an in-depth study of investigating microstructure-property relationships in bulk metallic glasses using a novel quantitative approach by which influence of the second phase features on mechanical properties can be independently and systematically analyzed. The author evaluates and optimizes the elastic and plastic deformation, as well as the overall toughness of cellular honeycombs under in-plane compression and porous heterostructures under uniaxial tension. The study reveals three major deformation zones in cellular metallic glass structures, where deformation changes from collective buckling showing non-linear elasticity to localized failure exhibiting a brittle-like deformation, and finally to global sudden failure with negligible plasticity as the length to thickness ratio of the ligaments increases. The author found that spacing and size of the pores, the pore configuration within the matrix, and the overall width of the sample determines the extent of deformation, where the optimized values are attained for pore diameter to spacing ratio of one with AB type pore stacking.

Includes bibliographical references and index.

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Print version: 9783319130323

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