Distribution & Access For Publication Downloads News About Us Contact Us
Paper Titles
Wear Properties of Bulk Amorphous Zr41.2Ti13.8Cu12.5Ni10Be22.5 Alloys for Crystallization
p.3439
Cu-Zr-Ti Bulk Metallic Glass Composites Produced by Mechanical Alloying and Vacuum Hot-Pressing
p.3443
Glass Forming Ability in Amorphous Ti50Cu35-xNi15Snx Alloys Prepared by Mechanical Alloying
p.3451
Grain Growth and Mechanical Properties of Nanograined Bulk Fe-25Ni Alloy
p.3459
Nucleation Barrier for the Precipitation in Nanosized Al-4wt%Cu Alloy
p.3463
Formation of Fe86Zr5.5Nb5.5B3 Nanocrystalline Bulk Alloy under High Pressure
p.3467
Effects of Constraint and Strain Path on Evolution of Ultrafine Grained Microstructure by Multi-Axial Alternative Forging
p.3471
Femtosecond Laser Driven Shock Quenching of the Nanocrystalline High-Pressure Phase of Iron
p.3475
Etching Mask Effect of the Nanoscratched Borosilicate Surface and Its Application to Maskless Pattern Fabrication
p.3479

Nucleation Barrier for the Precipitation in Nanosized Al-4wt%Cu Alloy

Article Preview

Abstract:

The possibility of Al2Cu( q) precipitation in nanosized Al-4wt%Cu alloy is predicted based on the theory of homogeneous nucleation. The result indicates that the initial concentration of Cu in parent phase has little influence on the nucleation event when the grain size is larger than a critical size. On the other hand, when the grain size is smaller than the critical size, the formation of a stable Al2Cu nucleus will be prohibited completely due to the insufficient initial concentration of Cu.

You might also be interested in these eBooks
PRICM-5 View Preview

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

3463-3466

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.3463

Citation:

Cite this paper

Online since:

January 2005

Authors:

Shan Qing Xu, Zheng Hong Guo, T.Y. Hsu

Keywords:

Nanosized Al-Cu Alloy, Nuclear Barrier, Precipitation

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] J.P. Lokker, A.J. Böttger, W.G. Sloof, F.D. Tichelaar, G.C.A.M. Janssen and S. Radelaar: Acta Mater. Vol. 49(2001), p.1339.

DOI: 10.1016/s1359-6454(01)00048-9

Google Scholar

[2] D.R. Frear, J.E. Sanchez, A.D. Romig, Jr., and J.W. Morris, Jr.: Metall. Trans. A Vol. 21A(1990), p.2449.

Google Scholar

[3] Qingping Meng, Yonghua Rong and T.Y. Hsu: Phy. Rev. B Vol. 65(2002), p.174118.

Google Scholar

[4] J.D. Eshelby: Proc. R. Soc. London, Ser. A 241(1957), p.376.

Google Scholar

[5] J.W. Christian: The Theory of Transformations in Metals and Alloys Part Ⅰ(Pergamon, Oxford, 2002), p.202.

Google Scholar

[6] J.L. Murry: Inter. Met. Rev. Vol. 30(1985), p.211.

Google Scholar

[7] J. Vallin, M. Mongy, K. Salama, and O. Beckman: J. Appl. Phys. Vol. 35(1964), p.1825.

Google Scholar

[8] F.R. Eshelman and J.F. Smith: J. Appl. Phys. Vol. 49(1978), p.3284.

Google Scholar

[9] H.B. Aaron and H.I. Aronson: Acta Metall., Vol. 16(1968), p.789.

Google Scholar

[10] S. Xu, Z. Guo and T.Y. Hsu(Xu Zuyao), to be published.

Google Scholar

Scientific.Net is a registered brand of Trans Tech Publications Ltd
© 2024 by Trans Tech Publications Ltd. All Rights Reserved