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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2017-07-01
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Online Access: | https://doi.org/10.1038/s41598-017-04816-0 |
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doaj-fc58ae2d452345b592f9fdbe5c29d6b12020-12-08T00:46:11ZengNature Publishing GroupScientific Reports2045-23222017-07-017111010.1038/s41598-017-04816-0Superior high creep resistance of in situ nano-sized TiCx/Al-Cu-Mg compositeLei Wang0Feng Qiu1Qinglong Zhao2Min Zha3Qichuan Jiang4State Key Laboratory of Automotive Simulation and Control, Jilin universityState Key Laboratory of Automotive Simulation and Control, Jilin universityKey Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin UniversityKey Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin UniversityState Key Laboratory of Automotive Simulation and Control, Jilin universityAbstract 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.https://doi.org/10.1038/s41598-017-04816-0 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lei Wang Feng Qiu Qinglong Zhao Min Zha Qichuan Jiang |
spellingShingle |
Lei Wang Feng Qiu Qinglong Zhao Min Zha Qichuan Jiang Superior high creep resistance of in situ nano-sized TiCx/Al-Cu-Mg composite Scientific Reports |
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 Publishing Group |
series |
Scientific Reports |
issn |
2045-2322 |
publishDate |
2017-07-01 |
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. |
url |
https://doi.org/10.1038/s41598-017-04816-0 |
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