In-situ Mg2Si/Al-Si-Cu composite modified by strontium

被引：56

作者：

Zhao, YG ^{[1
]}

Qin, QD ^{[1
]}

Liang, YH ^{[1
]}

Zhou, W ^{[1
]}

Jiang, QC ^{[1
]}

机构：

[1] Jilin Univ, Dept Mat Sci & Engn, Key Lab Automobile Mat & Minist Educ, Changchun 130025, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2005年 / 40卷 / 07期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1007/s10853-005-0705-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The feasibility of modification with Al-Sr master alloy on hypereutectic Al-Si-Mg-Cu alloy was studied. It was found that the Al-Sr master alloy modified the primary Mg2Si in in-situ Mg2Si/Al-Si-Cu composite. It was observed that the morphology of primary Mg2Si changed from equiaxed or irregular to polygonal shape and its size decreased from ∼80 to ∼30 μm. It was shown that the formative dendritic structure of Mg 2Si under a higher cooling rate condition changed to regular polygon shape.

引用

页码：1831 / 1833

页数：3

共 17 条

[1] [Anonymous], [No title captured]
[2] Function of modification and refinement of rapidly solidified master alloy Al—Ti—Sr
BIAN Xiufang
LIN Xinhua
LIU Xiangfa
[J]. Journal of Materials Science, 1998, 33 (1) : 99 - 102
[3] Metal-ceramic composites via in-situ methods
Daniel, BSS
Murthy, VSR
Murty, GS
[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1997, 68 (02) : 132 - 155
[4] Magnesium strengthened by SiC nanoparticles
Ferkel, H
Mordike, BL
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 298 (1-2): : 193 - 199
[5] FROMMEYER G, 1994, Z METALLKD, V85, P372
[6] GARAT M, 1978, AFS T, V86, P549
[7] Effect of microstructure on fracture behavior of Al2O3/Al composite by reactive metal penetration
Ha, CG
Jung, YG
Paik, U
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 306 (1-2) : 292 - 299
[8] Effect of the temperature of molten magnesium on the thermal explosion synthesis reaction of Al-Ti-C system for fabricating TiC/Mg composite
Jiang, QC
Wang, HY
Guan, QF
Li, XL
[J]. ADVANCED ENGINEERING MATERIALS, 2003, 5 (10) : 722 - 725
[9] Characteristics of α-dendritic and eutectic structures in Sr-treated Al-Si casting alloys
Liu, L
Samuel, AM
Samuel, FH
Doty, HW
Valtierra, S
[J]. JOURNAL OF MATERIALS SCIENCE, 2004, 39 (01) : 215 - 224
[10] Strengthening mechanisms of Mg-Si alloys
Mabuchi, M
Higashi, K
[J]. ACTA MATERIALIA, 1996, 44 (11) : 4611 - 4618

← 1 2 →