A rapid route for synthesizing Ti-(AlxTiy/UFG Al) core-multishell structured particles reinforced Al matrix composite with promising mechanical properties

Zheng Yang Hu; Zhao Hui Zhang; Hu Wang; Sheng Lin Li; Shi pan Yin; Qi Song; Xing Wang Cheng

doi:10.1016/j.msea.2018.02.065

A rapid route for synthesizing Ti-(Al_xTi_y/UFG Al) core-multishell structured particles reinforced Al matrix composite with promising mechanical properties

Zheng Yang Hu, Zhao Hui Zhang^*, Hu Wang, Sheng Lin Li, Shi pan Yin, Qi Song, Xing Wang Cheng

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

A new type of Al-matrix composites reinforced by in-situ Ti-(Al_xTi_y/Ultrafine-grained Al) core-multishell structured particles were successfully fabricated at relatively low temperature (450–580 °C) by SPS technique within a very short time. The composite sintered at 580 °C exhibits a yield strength improvement of 64.5% over the unreinforced matrix and a satisfactory elongation of 27%. The defects, UFG-Al grains and local-connection accelerated the Al-Ti inter-diffusion and consolidation process of composites. Although residual voids near Al_xTi_y/Al interface may induce the cracks, discontinuous tough intermetallic-phases inside Al_xTi_y layer and soft Ti-core can effectively decelerate the crack-propagation.

Original language	English
Pages (from-to)	61-64
Number of pages	4
Journal	Materials Science and Engineering: A
Volume	721
DOIs	https://doi.org/10.1016/j.msea.2018.02.065
Publication status	Published - 4 Apr 2018

Keywords

Al matrix
Core-multishell structure
Tensile property
Ultrafine-grained Al-grains

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10.1016/j.msea.2018.02.065

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title = "A rapid route for synthesizing Ti-(AlxTiy/UFG Al) core-multishell structured particles reinforced Al matrix composite with promising mechanical properties",

abstract = "A new type of Al-matrix composites reinforced by in-situ Ti-(AlxTiy/Ultrafine-grained Al) core-multishell structured particles were successfully fabricated at relatively low temperature (450–580 °C) by SPS technique within a very short time. The composite sintered at 580 °C exhibits a yield strength improvement of 64.5% over the unreinforced matrix and a satisfactory elongation of 27%. The defects, UFG-Al grains and local-connection accelerated the Al-Ti inter-diffusion and consolidation process of composites. Although residual voids near AlxTiy/Al interface may induce the cracks, discontinuous tough intermetallic-phases inside AlxTiy layer and soft Ti-core can effectively decelerate the crack-propagation.",

keywords = "Al matrix, Core-multishell structure, Tensile property, Ultrafine-grained Al-grains",

author = "Hu, {Zheng Yang} and Zhang, {Zhao Hui} and Hu Wang and Li, {Sheng Lin} and Yin, {Shi pan} and Qi Song and Cheng, {Xing Wang}",

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year = "2018",

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doi = "10.1016/j.msea.2018.02.065",

language = "English",

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journal = "Materials Science and Engineering: A",

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T1 - A rapid route for synthesizing Ti-(AlxTiy/UFG Al) core-multishell structured particles reinforced Al matrix composite with promising mechanical properties

AU - Hu, Zheng Yang

AU - Zhang, Zhao Hui

AU - Wang, Hu

AU - Li, Sheng Lin

AU - Yin, Shi pan

AU - Song, Qi

AU - Cheng, Xing Wang

PY - 2018/4/4

Y1 - 2018/4/4

N2 - A new type of Al-matrix composites reinforced by in-situ Ti-(AlxTiy/Ultrafine-grained Al) core-multishell structured particles were successfully fabricated at relatively low temperature (450–580 °C) by SPS technique within a very short time. The composite sintered at 580 °C exhibits a yield strength improvement of 64.5% over the unreinforced matrix and a satisfactory elongation of 27%. The defects, UFG-Al grains and local-connection accelerated the Al-Ti inter-diffusion and consolidation process of composites. Although residual voids near AlxTiy/Al interface may induce the cracks, discontinuous tough intermetallic-phases inside AlxTiy layer and soft Ti-core can effectively decelerate the crack-propagation.

AB - A new type of Al-matrix composites reinforced by in-situ Ti-(AlxTiy/Ultrafine-grained Al) core-multishell structured particles were successfully fabricated at relatively low temperature (450–580 °C) by SPS technique within a very short time. The composite sintered at 580 °C exhibits a yield strength improvement of 64.5% over the unreinforced matrix and a satisfactory elongation of 27%. The defects, UFG-Al grains and local-connection accelerated the Al-Ti inter-diffusion and consolidation process of composites. Although residual voids near AlxTiy/Al interface may induce the cracks, discontinuous tough intermetallic-phases inside AlxTiy layer and soft Ti-core can effectively decelerate the crack-propagation.

KW - Al matrix

KW - Core-multishell structure

KW - Tensile property

KW - Ultrafine-grained Al-grains

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SN - 0921-5093

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JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

A rapid route for synthesizing Ti-(Al_xTi_y/UFG Al) core-multishell structured particles reinforced Al matrix composite with promising mechanical properties

Abstract

Keywords

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