Effect of Strontium on Structure and Property of ZL102

Article Preview

Abstract:

Analysis tools of microstructure and mechanical properties were used to study ZL102 that was modified by Sr and without modification. The experiment shows that the morphology of eutectic silicon and α-Al phase of the modified alloy have greater changes than that without modification. With the added amount of Sr increases, the morphology of the eutectic silicon changes from sheet into flakiness and fibrous, and finally the fine fiber; α-Al phase increased and showed a small short rod distribution. The optimized technology of Sr modification agent is 0.05%Sr addition, the tensile strength of modified alloy is 218.5 MPa, and the elongation is 2.8%.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

40-43

Citation:

Online since:

October 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Liao Heng-cheng,Sun Yu,Sun Guo-mong. Correlation between mechanical properties and amount of dendritic α-A1 Phase in as-cast neat-eutectic Al-11. 6%Si alloys modified with strontium [J]. Materials Science and Engineering,2002. A335:62-66.

DOI: 10.1016/s0921-5093(01)01949-9

Google Scholar

[2] Liu L. Samuel A M. Samuel E H. Characteristics of a dendritic and eutectic stmcmres in Sr-treated Al-Si casting alloys [J]. Journal of materials science,2004. 39: 215-224.

DOI: 10.1023/b:jmsc.0000007747.43275.34

Google Scholar

[3] Huang Liangyu, Zhang Shaozong. Some Aspects on Aluminum Melt Treatment and Charge Treatment [J]. Special Casting & Nonferrous Alloys. 2001, (5): 31-33.

Google Scholar

[4] Liang Ji, Cai Huifa, Wang Chunhuai. Comprehensive modification treatment [J]. Special Casting & Nonferrous Alloys. 1991. (3): 16-18.

Google Scholar

[5] Liao Hengcheng, Sun Guoxiong. Gradual Behavior of the Eutectic Si Morphology from Flake into Fiber in Al-Si Cast Alloy with Sr Modification [J]. FOUNDRY, 2004, (3): 435-438.

Google Scholar

[6] Sun Yu, Wu Zhenping, Liu Bingyi. Grain refinement for near-hypoeutectic Al-Si alloys [J]. THE CHINESE JOURNAL OF NONFERROUS METALS, 2004, 14 (8): 1340-1347.

Google Scholar

[7] Mi Guofa, Zhu Zhaojun, Wang Hongwei, Zeng Songyan. Effects of Sr Modification on Microstructure of Al-Si alloy [J]. FOUNDRY TECHNOLOGY, 2006, (11) : 1217-1222.

Google Scholar