Structure and properties of calcium and strontium treated Al-7Si-0.3Mg alloy: A comparison

被引：0
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作者：
Kumari, S.S. Sreeja [1 ]
Pillai, R.M. [1 ]
Pai, B.C. [1 ]
机构：
[1] Materials and Minerals Division, Regional Research Laboratory (CSIR)-Trivandrum, Industrial Estate P.O, Pappanamcode, Trivandrum, Kerala 695 019, India
来源：
Journal of Alloys and Compounds | 2008年 / 460卷 / 1-2期
关键词：
The modification effect of Ca on the structure and properties of Al-7Si-0.3Mg alloy has been investigated and compared with the well-known modifier; Sr. The optimum level of Ca for achieving modification and best mechanical properties lies in the range of 0.0085-0.017%. Higher amount of Ca than this level leads to the formation of higher porosity and Al-Ca-Si intermetallics. Sr shows more porosity than Ca at 0.018% level in the alloy. The properties obtained with Ca modification are at par with those obtained with the well-known modifier; Sr. © 2007 Elsevier B.V. All rights reserved;
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页码：472 / 477
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