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Your search keyword '"Zhang, Wencong"' showing total 24 results
Start Over Author "Zhang, Wencong" Publication Type Conference Materials
24 results on '"Zhang, Wencong"'

10. Microstructure and mechanical properties of 2.5 vol. % TiBw/Ti6Al4V composites plates fabricated by hot-hydrostatic canned extrusion.

Author

Zhang, Wencong, Zhang, Lingjia, Feng, Yangju, Cui, Guorong, Chen, Wenzhen, Liu, Lin, Yang, Can, and Ke, Jianfeng

Subjects
TITANIUM composites, METALLIC whiskers, MECHANICAL properties of metals, HARDNESS, STRENGTH of materials, DUCTILITY
Abstract

Plates of 2.5 vol. % TiB whisker-reinforced Ti6Al4V titanium matrix composites (TiBw/Ti64) with network structure were successfully fabricated by hot-hydrostatic extrusion with steel cup at 1100 °C. The dimensions of plates were about 150mm in length, 27mm in width and 2mm in thickness. After extrusion, the original equiaxed-network structure formed by TiB whiskers still existed, but was compressed in cross-section and stretched in longitudinal section and then the TiB whiskers were directional distribution along the extrusion direction. Furthermore, the mechanical properties results showed that the strength, hardness and ductility of the plates were significantly improved compared to as-sintered composites. [ABSTRACT FROM AUTHOR]

Published
2018
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11. Cyclic hardening behavior of extruded ZK60 magnesium alloy with different grain sizes.

Author

Zhang, Lixin, Zhang, Wencong, Chen, Wenzhen, Wang, Wenke, Liu, Lin, Yang, Can, and Ke, Jianfeng

Subjects
DEFORMATIONS (Mechanics), MAGNESIUM alloys, GRAIN size, HARDENING (Heat treatment), ELECTRON backscattering
Abstract

Montonic and fully reversed strain-controlled cyclic deformation experiments were conducted on extruded ZK60 magnesium alloy with two different grain sizes in ambient air. Results revealed that the hardening rates of the ZK60 magnesium alloy rods with fine grain and coarse grain in the monotonic deformation and the fully reversed strain-controlled cyclic deformation were opposite along the extrusion direction. Electron Backscatter Diffration analysis revealed that fine grains were more easily rotated than coarse grains under the cyclic deformation. Under the twinning and detwinning process of the cyclic deformation at a large strain amplitude, the coarse grained ZK60 magnesium alloys were more prone to tension twinning {10-12}<10-11> and more residual twins were observed. Texture hardening of coarse grained magnesium alloy was more obvious in cyclic defromation than fine-grained magnesium alloy. [ABSTRACT FROM AUTHOR]

Published
2018
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