@inbook{fb15addd86004dd0806451d32cd6335b,
title = "Ultrafast precipitation kinetics in an ultrafine-grained Al{\textendash}Cu alloy used for oil drill pipes",
abstract = "In the ultrafine-grained (UFG, <1 μm) Al{\textendash}Cu alloys having very poor thermal stability, only intergranular equilibrium θ-Al2Cu precipitates were found after aging treatment, which means that the precipitation was greatly accelerated even at room temperature and has directly transformed to equilibrium θ phases while bypassed the metastable phases GP zones, θ″ and θ′ as usually seen in representative precipitation transition sequence of coarse grained (CG, >10 m) Al{\textendash}Cu alloy. It was found the precipitation kinetics of θ phases in the UFG Al{\textendash}Cu alloy occurred at several orders of magnitude faster than that can be predicted by conventional grain boundary precipitation theory. Considering ultrafast solute diffusion at the UFG length-scale, a developed/modified precipitation kinetics model at the UFG length-scale has been established. It yields predictions in satisfied accordance with experimental aging precipitation process/parameters of UFG Al{\textendash}Cu alloys.",
keywords = "Al{\textendash}Cu alloys, Precipitation behavior, Thermodynamic-kinetic models, Ultrafine grain",
author = "Long Jiang and Chun Feng and Lihong Han and Yaorong Feng and Caihong Lu and Lijuan Zhu and Hang Wang and Gang Liu and Jun Sun",
note = "Publisher Copyright: {\textcopyright} Springer Nature Singapore Pte Ltd. 2018.",
year = "2018",
doi = "10.1007/978-981-13-0107-0\_104",
language = "英语",
series = "Lecture Notes in Mechanical Engineering",
publisher = "Pleiades journals",
pages = "1093--1102",
booktitle = "Lecture Notes in Mechanical Engineering",
}