Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Zhongping Que"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-19 (2024)
Abstract Refinement of intermetallic compounds (IMCs) through enhancing heterogeneous nucleation during casting process is an important approach to improve the properties of aluminium alloys, which greatly increases the economy value of recycled Al-a
Externí odkaz:
https://doaj.org/article/12c3ec80d0f544c4b0f4decfd5bd2f06
Publikováno v:
Crystals, Vol 14, Iss 10, p 879 (2024)
Fe-containing intermetallic compounds (IMCs) are among the most detrimental second phases in aluminum alloys. One particularly harmful type is θ-Al13Fe4, which exhibits a needle- or plate-like morphology, leading to greater degradation of mechanical
Externí odkaz:
https://doaj.org/article/487fc92ede5145e0b7ec075d3bc9925f
Publikováno v:
Metals, Vol 12, Iss 12, p 2112 (2022)
θ-Al13Fe4 particles form as a primary Fe intermetallic compound (Fe-IMC) during the casting of commercial Al metals and alloys that inevitably contain Fe and Si as impurities. Moreover, the excellent mechanical performances of the Al-Cu alloys deman
Externí odkaz:
https://doaj.org/article/167a2a5783d945709e1ebf7cc9738538
Autor:
Zhongping Que, Yun Wang, Chamini L. Mendis, Changming Fang, Junhai Xia, Xiaorong Zhou, Zhongyun Fan
Publikováno v:
Metals, Vol 12, Iss 10, p 1677 (2022)
Control of Fe in Al alloys is a severe challenge for the full metal circulation to produce the recycled alloys with mechanical and physical performance as high as the primary alloys. The high restriction of Fe content is mainly due to the deteriorati
Externí odkaz:
https://doaj.org/article/4fb1c6b710c9464199322e19a25baac6
Autor:
Yun Wang, Shihao Wang, Zhongping Que, Changming Fang, Teruo Hashimoto, Xiaorong Zhou, Quentin M. Ramasse, Zhongyun Fan
Publikováno v:
Metals, Vol 12, Iss 10, p 1636 (2022)
During solidification of metallic materials, heterogeneous nucleation occurs on substrates, either endogenous or exogenous. The potency of the substrates for nucleation is mainly dependent upon the atomic arrangements on the substrate surface, which
Externí odkaz:
https://doaj.org/article/6bf51c6b75de4155a10e7221b96671ff
Publikováno v:
Metals, Vol 12, Iss 2, p 329 (2022)
In this work, we investigate Cu solution in θ-Al13Fe4 and related Al-rich ω-Al7Cu2Fe and Al2Cu phases in the Al-Cu-Fe system using the first-principles density functional theory (DFT) with on-site Coulomb interaction correction. The results show pr
Externí odkaz:
https://doaj.org/article/cf2fb8ca771b4beb90ac99b19cfd2f2f
Publikováno v:
Metals, Vol 11, Iss 3, p 478 (2021)
Heterogeneous nucleation is a widespread phenomenon in both nature and technology. However, our current understanding is largely confined to the classical nucleation theory (CNT) postulated over a century ago, in which heterogeneous nucleation occurs
Externí odkaz:
https://doaj.org/article/27a6a9ba7c974432bf6aaa275dae7e44
Publikováno v:
Que, Z, Wang, Y, Fan, Z, Hashimoto, T & Zhou, X 2022, ' Enhanced heterogeneous nucleation of Al6(Fe,Mn) compound in Al alloys by interfacial segregation of Mn on TiB2 particles surface ', Materials Letters, vol. 323, pp. 132570 . https://doi.org/10.1016/j.matlet.2022.132570
Copyright © 2022 The Author(s). In this study, the composition templating theory for heterogeneous nucleation was applied to achieve TiB2 particles with Mn segregation on the surface, which supplied the initial composition for the heterogeneous nucl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25e1944ee73eaf3cb017ce6eb2f538e5
https://doi.org/10.1016/j.matlet.2022.132570
https://doi.org/10.1016/j.matlet.2022.132570
Publikováno v:
Metallurgical and Materials Transactions A. 51:5743-5757
Al-5Ti-1B is the most widely used grain refiner for Al alloys. However, it is not effective for grain refining Al alloys containing more than 3 wt pct Si. This adverse effect of Si is referred to as Si poisoning. In spite of extensive experimental an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f1882f94ec52a021a3f16404c097428
https://doi.org/10.1007/s11661-020-05950-7
https://doi.org/10.1007/s11661-020-05950-7
The nature of the native MgAl2O4 particles found in an Al-5Mg-2Si-0.7Mn-1.1Fe alloy was investigated with scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM). An orientation relationship (OR) was identified
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b8e7729143ae383ffafae2494a9e7a2
https://bura.brunel.ac.uk/handle/2438/23224
https://bura.brunel.ac.uk/handle/2438/23224