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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Main Authors:	Lei Wang, Feng Qiu, Qinglong Zhao, Min Zha, Qichuan Jiang
Format:	article
Language:	EN
Published:	Nature Portfolio 2017
Subjects:	Medicine R Science Q
Online Access:	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
_version_	1718388994297823232

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

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