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Improving the tensile ductility of metal matrix composites by laminated structure: A coupled X-ray tomography and digital image correlation study

机译:通过层压结构改善金属基质复合材料的拉伸延展性:耦合X射线层析造影和数字图像相关研究

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摘要

The microstructure design strategy of laminated structure was applied to improve the mechanical properties of metal matrix composites (MMCs). The laminated composites were prepared by hot pressing and rolling of alternately stacked Ti foils and Sic/Al composite foils, and exhibited a superior strength-ductility synergy compared to SiCp/Al bulk MMCs. Coupling X-ray tomography and digital image correlation (DIC) revealed that the enhanced mechanical properties originated from the contribution of the interface on local stress/strain transfer behaviors, thus delaying the crack initiation and propagation within SiCp/Al layers. (C) 2017 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.
机译:施用层压结构的微观结构设计策略,提高金属基复合材料(MMC)的力学性能。 通过交替堆叠的Ti箔和SiC / Al复合箔的热压和轧制制备层压复合材料,与SICP / Al散装MMC相比,优异的强度 - 延展性协同作用。 耦合X射线断层扫描和数字图像相关(DIC)显示,增强的机械性能来自界面对局部应力/应变传递行为的贡献,从而延迟SICP / Al层内的裂纹启动和传播。 (c)2017 Acta Materialia Inc由elsevier有限公司出版。保留所有权利。

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