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Rare Metals

Erschienen in:

01.06.2013

Refinement of primary Si in Cu–50Si alloys with novel Al–Zr–P master alloy

verfasst von: Min Zuo, Zhong-Shi Zhang, Xin-Ying Teng, Hao-Ran Geng

Erschienen in: Rare Metals | Ausgabe 3/2013

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Abstract

In this article, a novel Al–6Zr–2P master alloy with ZrP particles was successfully synthesized, and the refining performance of this novel master alloy for the primary Si in Cu–50Si alloys was also investigated. By means of the fracture plane observation, it is found that the ZrP phase would precipitate first in the solidification process, and then, the ZrAl₃ phase grows around them. Furthermore, it is observed that the refining effect can be remarkably improved by changing the addition sequence of the raw materials. After the melting of commercial Cu, the 2.0 wt% Al–6Zr–2P master alloy and crystalline Si were added in sequence, and the mean size of the primary Si in Cu–50Si alloy can be significantly refined from 255.7 to 75.3 μm. Meanwhile, the refining mechanism was discussed in detail.

Vorheriger Artikel Relationship of Ca, B, and AlP in Al–12.6Si alloy

Nächster Artikel Abnormal electric transport property and magnetoresistance stability of La–Sr–K–Mn–O system

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Titel: Refinement of primary Si in Cu–50Si alloys with novel Al–Zr–P master alloy
verfasst von: Min Zuo
Zhong-Shi Zhang
Xin-Ying Teng
Hao-Ran Geng
Publikationsdatum: 01.06.2013
Verlag: Nonferrous Metals Society of China
Erschienen in: Rare Metals / Ausgabe 3/2013
Print ISSN: 1001-0521
Elektronische ISSN: 1867-7185
DOI: https://doi.org/10.1007/s12598-013-0046-9

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