Influence of combined grain refinement and modification on the microstructure, tensile strength and wear properties of Al-15Si, Al-15Si-4.5Cu alloys

被引：7

作者：

Channappagoudar, Shivaprasad ^{[1
]}

Sannayallappa, Narendranath ^{[1
]}

Desai, Vijay ^{[1
]}

Karodi, Venkateswarlu ^{[2
]}

机构：

[1] Natl Inst Technol, Dept Mech Engn, Surathkal, India

[2] Natl Aeronaut Lab, CSIR, Bangalore 560017, Karnataka, India

来源：

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2015年 / 106卷 / 09期

关键词：

Al-15Si alloy; Grain refinement; Modification; Sliding wear; AL-SI ALLOYS; CAST ALLOYS; MECHANICAL-PROPERTIES; EUTECTIC ALLOYS; CU CONTENT; MG ALLOYS; BEHAVIOR; SILICON; AL-7SI; COPPER;

D O I：

10.3139/146.111270

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Microstructure, tensile strength and dry sliding wear studies of Al-15Si, Al-15Si-4.5Cu alloys with and without grain refinement and modifications are presented. Experimental alloys such as Al-15Si and Al-15Si-4.5Cu were conventionally melted and gravity die cast. For grain refinement, 1 wt.% of Al-1Ti-3B and for modification, 0.17 wt.% of aluminum phosphide (AlP) and 0.4 wt.% of Al-10Sr were added to the alloy melt. The results reveal refined microstructure due to grain refinement, modification, improved hardness, higher tensile strength and better sliding wear. Moreover, Al-15Si-4.5Cu alloy (untreated and treated) showed improved mechanical properties as compared to conventional hypereutectic Al-Si alloy.

引用

页码：962 / 969

页数：8

共 21 条

[1]

[Anonymous], 1993, Aluminum and Aluminum Alloys

[2] Influence of grain refinement and modification on dry sliding wear behavior of Al-12Si and Al-12Si-3Cu cast alloys [J].

Basavakumar, K. G. ;

Mukunda, P. G. ;

Chakraborty, M. .

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2008, 99 (08) :900-906

[3] Effect of melt treatment on microstructure and impact properties of Al-7Si and Al-7Si-2-5Cu cast alloys [J].

Basavakumar, K. G. ;

Mukunda, P. G. ;

Chakraborty, M. .

BULLETIN OF MATERIALS SCIENCE, 2007, 30 (05) :439-445

[4] Influence of melt treatments on sliding wear behavior of Al-7Si and Al-7Si-2.5Cu cast alloys [J].

Basavakumar, K. G. ;

Mukunda, P. G. ;

Chakraborty, M. .

JOURNAL OF MATERIALS SCIENCE, 2007, 42 (18) :7882-7893

[5] Eutectic modification and microstructure development in Al-Si alloys [J].

Dahle, AK ;

Nogita, K ;

McDonald, SD ;

Dinnis, C ;

Lu, L .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 413 :243-248

[6] Wear behaviour of cast hypereutectic aluminium silicon alloys [J].

Dwivedi, DK .

MATERIALS & DESIGN, 2006, 27 (07) :610-616

[7] Sliding temperature and wear behaviour of cast Al-Si-Mg alloys [J].

Dwivedi, DK .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 382 (1-2) :328-334

[8]

GRUZLESKI JE, 1990, TREATMENT LIQUID ALU, P127

[9] Modification of eutectic silicon in Al-Si alloys [J].

Hegde, Sathyapal ;

Prabhu, K. Narayan .

JOURNAL OF MATERIALS SCIENCE, 2008, 43 (09) :3009-3027

[10] Refinement of the primary Si particles in hypereutectic aluminum alloy [J].

Hsu, Chang-Chuan ;

Wang, Jian-Yih ;

Huang, Jian-Jia ;

Lee, Shyong .

METALS AND MATERIALS INTERNATIONAL, 2012, 18 (04) :567-571

← 1 2 3 →