Effects of boron-strontium interactions on eutectic modification in Al-10 mass%Si alloys

Nogita, K, McDonald, SD and Dahle, AK (2003) Effects of boron-strontium interactions on eutectic modification in Al-10 mass%Si alloys. Materials Transactions, 44 4: 692-695. doi:10.2320/matertrans.44.692


Author Nogita, K
McDonald, SD
Dahle, AK
Title Effects of boron-strontium interactions on eutectic modification in Al-10 mass%Si alloys
Journal name Materials Transactions   Check publisher's open access policy
ISSN 1345-9678
Publication date 2003-01-01
Sub-type Article (original research)
DOI 10.2320/matertrans.44.692
Open Access Status DOI
Volume 44
Issue 4
Start page 692
End page 695
Total pages 4
Place of publication Sendai, Japan
Publisher Japan Inst Metals
Language eng
Subject C1
291403 Alloy Materials
671004 Castings
Abstract The effects of boron and strontium interactions on the eutectic silicon in hypoeutectic Al-Si alloys have been studied. Samples were prepared from an AI-I 0 mass%Si base alloy with different Al-B additions, alone and in combination with strontium. In alloys containing no strontium, boron additions do not cause modification of the eutectic silicon, while in strontium containing alloys, boron additions reduce the level of modification of the eutectic silicon. Thermal analysis parameters and eutectic silicon microstructures were investigated with respect to the Sr to B ratio. In order to modify the eutectic silicon, a Sr/B ratio exceeding 0.4 is required.
Keyword Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Casting
Aluminium Alloys
Microstructure
Solidification
Modification
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 12:36:48 EST