Influence of Fly Ash on Microstructure and Mechanical Properties of Aluminium (Al/7Si) Alloy Composite

被引：0
|
作者：
Shah, Chirav [1 ]
Raiyani, Denish [1 ]
Dave, Hem [1 ]
Santhy, K. [1 ]
Muthukumar, J. [2 ]
机构：
[1] Indus Univ, Inst Technol & Engn, Dept Mat & Met Engn, Ahmadabad 382115, India
[2] CARE Grp Inst, Dept Mech Engn, 27 Thayanur, Tiruchirappalli 620009, Tamil Nadu, India
来源：
METALLOPHYSICS AND ADVANCED TECHNOLOGIES | 2022年 / 44卷 / 05期
关键词：
fly ash composite; stir casting; mechanical properties; micro- structure analysis; radiographic testing; METAL-MATRIX COMPOSITES; FABRICATION;
D O I：
10.15407/mfint.44.05.0659
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Metal matrix composites (MMC) have a wide range of applications in today's world, due to their high strength to weight ratio. In the present work, aluminium alloy LM25 and fly ash are selected as matrix and reinforced materials, respectively. Fly ash is a waste product in thermal power plants. Its ease availability in low cost can be converted into useful product. MMC of aluminium alloy LM25-with 5 and 7.5% wt. fly ash composite is made by stir casting. The composite mechanical properties are compared with aluminium alloy. The chemical composition of aluminium alloy and its composite are studied by optical emission spectroscopy. The mechanical properties such as tensile strength, elongation and hardness are obtained by employing UTM and Brinell hardness tester. The specimens' microstructure and phase analysis are studied using an optical microscope and XRD. A segregation of fly ash is found in the grain boundaries in the microstructure. The mechanical properties show significant enhancement from the base metal. The various defects present in the casting are studied with the help of radiography technique.
引用
收藏
页码：659 / 669
页数：137
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