Al-Si-P master alloy and its modification and refinement performance on Al-Si alloys

被引：18

作者：

Zuo Min ^{[1
]}

Liu Xiangfa ^{[1
]}

Dai Hongshang ^{[1
]}

Liu Xiangjun ^{[2
]}

机构：

[1] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China

[2] Shandong Shanda & Mg Melt Technol Co Ltd, Jinan 250061, Peoples R China

来源：

RARE METALS | 2009年 / 28卷 / 04期

关键词：

Al-Si alloys; Al-Si-P master alloy; primary Si; P recovery; modification; refinement; HETEROGENEOUS NUCLEATION; MECHANICAL-PROPERTIES; MICROSTRUCTURE; ALUMINUM; SOLIDIFICATION;

D O I：

10.1007/s12598-009-0080-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An Al-Si-P master alloy has been developed by an in-situ reaction and the electron probe microanalyzer (EPMA) results show that there are many pre-formed AlP particles contained in the master alloy. Silicon introduced into the system plays an important role in remarkably improving the distribution and content of AlP particles due to their similar crystal structure and lattice parameters. ZL109 alloys have shown fast modification response to the addition of 0.5% Al-15Si-3.5P master alloy at 720A degrees C, with a mass of primary Si precipitating in size of about 15 mu m. Also, coarse primary Si grains in Al-30Si alloy can be refined dramatically from 150 mu m to 37 mu m after the addition of 2.0% Al-15Si-3.5P master alloy at 850A degrees C. The P recovery of the Al-15Si-3.5P master alloy is much higher than that of a Cu-8.5P master alloy due to the pre-formed AlP particles.

引用

页码：412 / 417

页数：6

共 21 条

[1] Effect of the addition of refiners and/or modifiers on the microstructure of die cast Al-12Si alloys
Asensio-Lozano, J
Suarez-Peña, B
[J]. SCRIPTA MATERIALIA, 2006, 54 (05) : 943 - 947
[2] SOLUTION OF ALUMINUM PHOSPHIDE IN ALUMINUM
BEER, SZ
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1969, 116 (02) : 263 - &
[3] Impurity effects on heterogeneous nucleation
Cantor, B
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 226 : 151 - 156
[4] A novel method for net-shape forming of hypereutectic Al-Si alloys by thixocasting with powder preforms
Chen, CM
Yang, CC
Chao, CG
[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2005, 167 (01) : 103 - 109
[5] Solidification of Al-50 at.%Si alloy in a drop tube
Ge, LL
Liu, RP
Li, G
Ma, MZ
Wang, WK
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 385 (1-2): : 128 - 132
[6] Effect of process variables on structure and properties of aluminium-silicon piston alloy
Haque, MM
Maleque, MA
[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1998, 77 (1-3) : 122 - 128
[7] Comparison among chemical and electromagnetic stirring and vibration melt treatments for Al-Si hypereutectic alloys
Hernandez, F. C. Robles
Sokolowski, J. H.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2006, 426 (1-2) : 205 - 212
[8] HETEROGENEOUS NUCLEATION OF SOLIDIFICATION OF SI IN AL-SI AND AL-SI-P ALLOYS
HO, CR
CANTOR, B
[J]. ACTA METALLURGICA ET MATERIALIA, 1995, 43 (08): : 3231 - 3246
[9] Effect of phosphorus additions on the spacing between primary silicon particles in a Bridgman solidified hypereutectic Al-Si alloy
Kyffin, WJ
Rainforth, WM
Jones, H
[J]. JOURNAL OF MATERIALS SCIENCE, 2001, 36 (11) : 2667 - 2672
[10] Solubility and precipitation of AlP in Al-Si melts studied with a temperature controlled filtration technique
Lescuyer, H
Allibert, M
Laslaz, G
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1998, 279 (02) : 237 - 244

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