Design and Processing of Bimetallic Aluminum Alloys by Sequential Casting Technique

被引：6

作者：

Karun, Akhil S. ^{[1
]}

Hari, S. ^{[1
]}

Ebhota, Williams S. ^{[2
]}

Rajan, T. P. D. ^{[1
]}

Pillai, U. T. S. ^{[1
]}

Pai, B. C. ^{[1
]}

机构：

[1] CSIR Natl Inst Interdisciplinary Sci & Technol, Thiruvananthapuram 695019, Kerala, India

[2] Univ KwaZulu Natal, Discipline Mech Engn, Howard Coll, ZA-4000 Durban, South Africa

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2017年 / 48A卷 / 01期

关键词：

SLIDING WEAR BEHAVIOR; HYBRID COMPOSITE; TEMPERATURE;

D O I：

10.1007/s11661-016-3824-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sequential casting is a facile and fairly new technique to produce functionally graded materials (FGMs) and components by controlled mold filling process. In the present investigation, functionally graded bimetallic aluminum alloys are produced by sequential gravity casting using A390-A319 and A390-A6061 alloy combinations. The control in pouring time between two melts has shown a significant effect on the quality and nature of interface bonding. The microstructure reveals good interface miscibility achieved through diffusion bonding between the alloys. A higher hardness of 160 BHN in the A390 region is obtained in both sequential cast systems, and a minimum value of 105 and 91 BHN is observed in the A319 and A6061 regions, respectively. The tensile and compression strength for A390-A319 are 337 and 490 MPa, whereas for A390-A6061, they are 364 and 401 MPa, respectively, which are significantly higher compared with the standard values of the base alloys, which confirms strong interface bonding. The A390 region shows higher wear resistance compared with other regions of the sequential cast system. The process described in this study is a potential and efficient approach to create good bonding between two different aluminum alloys to develop advanced functional and structural materials. (C) The Minerals, Metals & Materials Society and ASM International 2016

引用

页码：279 / 293

页数：15

共 29 条

[1] Dry sliding wear of aluminium-high silicon hypereutectic alloys [J].

Alshmri, E. ;

Atkinson, H. V. ;

Hainsworth, S. V. ;

Haidon, C. ;

Lawes, S. D. A. .

WEAR, 2014, 313 (1-2) :106-116

[2]

[Anonymous], 2011, AL AUT MAN DES DES A

[3] Effect of grain refinement and modification on the dry sliding wear behaviour of eutectic Al-Si alloys [J].

Chandrashekharaiah, T. M. ;

Kori, S. A. .

TRIBOLOGY INTERNATIONAL, 2009, 42 (01) :59-65

[4] Dendritic Arm Spacing Affecting Mechanical Properties and Wear Behavior of Al-Sn and Al-Si Alloys Directionally Solidified under Unsteady-State Conditions [J].

Cruz, Kleber S. ;

Meza, Elisangela S. ;

Fernandes, Frederico A. P. ;

Quaresma, Jose M. V. ;

Casteletti, Luiz C. ;

Garcia, Amauri .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2010, 41A (04) :972-984

[5] Study of Al/Cu rich phases formed in A356 alloy by inserting Cu wire in pattern in LFC process [J].

Divandari, M. ;

Golpayegani, A. R. Vahid .

MATERIALS & DESIGN, 2009, 30 (08) :3279-3285

[6] Tensile and Dry Sliding Wear Behavior of In-Situ Al3Zr + Al2O3-Reinforced Aluminum Metal Matrix Composites [J].

Gautam, G. ;

Ghose, A. K. ;

Chakrabarty, I. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2015, 46A (12) :5952-5961

[7] Dry sliding wear behavior of plasma-sprayed aluminum hybrid composite coatings [J].

Gui, MC ;

Kang, SB .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2001, 32 (09) :2383-2392

[8] Dissimilar joining of Al/Mg light metals by compound casting process [J].

Hajjari, E. ;

Divandari, M. ;

Razavi, S. H. ;

Emami, S. M. ;

Homma, T. ;

Kamado, S. .

JOURNAL OF MATERIALS SCIENCE, 2011, 46 (20) :6491-6499

[9]

James M.B., 2003, METALL MATER TRANS A, V34A, P1807

[10]

Karun Akhil S., 2015, Materials Science Forum, V830-831, P383, DOI 10.4028/www.scientific.net/MSF.830-831.383

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