For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Study on Simulation and Visualization of Microstructure
p.94
Slow Cooling Treatment of High-Alloyed Superalloy
p.98
Effect of Nd on Structure and Properties of Hypereutectic Al-Si Alloys
p.105
Effect of the Solid-Solution Treatment on the Die-Casting Structures and Properties of Commercial RE-AZ91 Mg Alloy
p.109
Effect of Compound Modification on Microstructure and Properties of High Silicon Aluminum Alloy
p.114
Influence of Overburning on Microstructure and Property of 6061 Aluminum Alloy
p.118
In Situ Fabrication and Microstucture of ZrB2 Particles Reinforced Aluminum Matrix Composites
p.122
Action of Magnesium on Carbide Spheroidization in Annealed Bearing Steel
p.129
Calculation Model of Mass Action Concentrations for CaO-MnO-FeO-SiO2-MgO-Al2O3 Slags Based on the Ion and Molecule Coexistence Theory
p.134

Effect of Compound Modification on Microstructure and Properties of High Silicon Aluminum Alloy

Article Preview

Abstract:

Double compound modification was carried out for hypereutectic Al-24Si alloy. The experiment showed that double modification with phosphorus and rare earth can fine the microstructure of alloy. The complex modifications of phosphorus and rare earth make the coarse block primary silicon obviously refined and the large needle eutectic silicon modified to the fine fibrous or lamella ones. The alloys with the additions of 0.10% P(phosphorus) and 0.90% RE(rare earth) have the optimal microstructure and the highest mechanical properties. Compared with the unmodified alloy, the primary silicon of alloys can be refined from 93.5μm to 24.1μm. The tensile strength is improved from 248MPa to 305MPa and the elongation is improved from 0.31% to 0.47%. Mechanism of double compound modification with phosphorus and rare earth is discussed as well.

You might also be interested in these eBooks
New Materials and Processes View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 476-478)

Pages:

114-117

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.476-478.114

Citation:

Cite this paper

Online since:

February 2012

Authors:

Niu Can Liu, Guang Sheng Kang, Zhong Xia Liu

Keywords:

Al-24Si Alloy, Complex Modification, Mechanical Property, Microstructure

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] Z.H. Chen and Z.T. Kang: Journal of Central South University of Technology Vol.7(2000), p.133

Google Scholar

[2] Y.H. Franksu, C.S. Samchiang and Y.A. Tsaoc: Materials Science and Engineering A Vol. 364(2004), p.305

Google Scholar

[3] S. Shibata, S. Tomita and K. Nakata: Journal of Japan Institute of Light Metals Vol. 50(2000), p.609

Google Scholar

[4] K. Matsuura, K. Suzuki, T. Ohmi, M. Kudoh, H. kinoshita and H. Takahashi: Metallurgical and Materials Transactions A Vol. 35A (2004), p.333

Google Scholar

[5] X.F. Liu, Y.Y. Wu and X.F. Bian: Journal of Alloys and Compounds Vol. 391 (2005), p.90

Google Scholar

[6] J.Y. Chang, I.G. Moon and C.S. Choi: Journal of Materials Science Vol. 33 (1998), p.5015

Google Scholar

[7] H.K. Yi and D. Zhang: Trams. Nonferrous. Met. Soc Vol. 13 (2003), p.358

Google Scholar

[8] B.Q. Xiong, Y.G. Zhang and Q. Wei: Journal of Materials Processing Technology Vol. 137 (2003), p.183

Google Scholar

[9] N.C. Liu, J.Q. Li and Z.X. Liu: Adv. Mater. Res Vol.160(2011), p.189

Google Scholar

[10] H.F. Hu and H.J. Li: Hot Working Technology Vol. 39(2010), p.67

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.