Superior high creep resistance of in situ nano-sized TiCx/Al-Cu-Mg composite

Abstract The tensile creep behavior of Al-Cu-Mg alloy and its composite containing in situ nano-sized TiCx were explored at temperatures of 493 K, 533 K and 573 K with the applied stresses in the range of 40 to 100 MPa. The composite reinforced by nano-sized TiCx particles exhibited excellent creep...

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Autores principales: Lei Wang, Feng Qiu, Qinglong Zhao, Min Zha, Qichuan Jiang
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Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/fc58ae2d452345b592f9fdbe5c29d6b1
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spelling oai:doaj.org-article:fc58ae2d452345b592f9fdbe5c29d6b12021-12-02T15:05:06ZSuperior high creep resistance of in situ nano-sized TiCx/Al-Cu-Mg composite10.1038/s41598-017-04816-02045-2322https://doaj.org/article/fc58ae2d452345b592f9fdbe5c29d6b12017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04816-0https://doaj.org/toc/2045-2322Abstract The tensile creep behavior of Al-Cu-Mg alloy and its composite containing in situ nano-sized TiCx were explored at temperatures of 493 K, 533 K and 573 K with the applied stresses in the range of 40 to 100 MPa. The composite reinforced by nano-sized TiCx particles exhibited excellent creep resistance ability, which was about 4–15 times higher than those of the unreinforced matrix alloy. The stress exponent of 5 was noticed for both Al-Cu-Mg alloy and its composite, which suggested that their creep behavior was related to dislocation climb mechanism. During deformation at elevated temperatures, the enhanced creep resistance of the composite was mainly attributed to two aspects: (a) Orowan strengthening and grain boundary (GB) strengthening induced by nano-sized TiCx particles, (b) θ′ and S′ precipitates strengthening.Lei WangFeng QiuQinglong ZhaoMin ZhaQichuan JiangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Lei Wang
Feng Qiu
Qinglong Zhao
Min Zha
Qichuan Jiang
Superior high creep resistance of in situ nano-sized TiCx/Al-Cu-Mg composite
description Abstract The tensile creep behavior of Al-Cu-Mg alloy and its composite containing in situ nano-sized TiCx were explored at temperatures of 493 K, 533 K and 573 K with the applied stresses in the range of 40 to 100 MPa. The composite reinforced by nano-sized TiCx particles exhibited excellent creep resistance ability, which was about 4–15 times higher than those of the unreinforced matrix alloy. The stress exponent of 5 was noticed for both Al-Cu-Mg alloy and its composite, which suggested that their creep behavior was related to dislocation climb mechanism. During deformation at elevated temperatures, the enhanced creep resistance of the composite was mainly attributed to two aspects: (a) Orowan strengthening and grain boundary (GB) strengthening induced by nano-sized TiCx particles, (b) θ′ and S′ precipitates strengthening.
format article
author Lei Wang
Feng Qiu
Qinglong Zhao
Min Zha
Qichuan Jiang
author_facet Lei Wang
Feng Qiu
Qinglong Zhao
Min Zha
Qichuan Jiang
author_sort Lei Wang
title Superior high creep resistance of in situ nano-sized TiCx/Al-Cu-Mg composite
title_short Superior high creep resistance of in situ nano-sized TiCx/Al-Cu-Mg composite
title_full Superior high creep resistance of in situ nano-sized TiCx/Al-Cu-Mg composite
title_fullStr Superior high creep resistance of in situ nano-sized TiCx/Al-Cu-Mg composite
title_full_unstemmed Superior high creep resistance of in situ nano-sized TiCx/Al-Cu-Mg composite
title_sort superior high creep resistance of in situ nano-sized ticx/al-cu-mg composite
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/fc58ae2d452345b592f9fdbe5c29d6b1
work_keys_str_mv AT leiwang superiorhighcreepresistanceofinsitunanosizedticxalcumgcomposite
AT fengqiu superiorhighcreepresistanceofinsitunanosizedticxalcumgcomposite
AT qinglongzhao superiorhighcreepresistanceofinsitunanosizedticxalcumgcomposite
AT minzha superiorhighcreepresistanceofinsitunanosizedticxalcumgcomposite
AT qichuanjiang superiorhighcreepresistanceofinsitunanosizedticxalcumgcomposite
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