Effect of ultrasonic treatment on microstructural and mechanical properties of Al 7075/Grp composite

被引：15
作者：
Gupta, Ramendra Kumar [1 ]
Ravi, K. R. [2 ]
Udhayabanu, V. [1 ]
Peshwe, D. R. [1 ]
机构：
[1] Visvesvaraya Natl Inst Technol, Dept Met & Mat Engn, Nagpur 440010, Maharashtra, India
[2] Indian Inst Technol, Dept Met & Mat Engn, Jodhpur 342037, Rajasthan, India
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2022年 / 281卷
关键词：
Composite; Reinforcement; Ultrasonic; Casting; Aluminum; Graphite; Nonferrous; Microstructure; METAL-MATRIX COMPOSITES; RICE-HUSK ASH; SINTERING TEMPERATURE; PARTICLES; STRENGTH; BEHAVIOR; WEAR; NANOCOMPOSITE; GENERATION;
D O I：
10.1016/j.matchemphys.2022.125905
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present study 7075-2 vol% Gr(p) composites, have been synthesized by stir casting technique. Ultrasonic Treatment (UT) has been given in the composite melt to overcome the issues related to the ex-situ particle reinforced composites. The microstructural analysis has revealed uniform distribution of Gr(p) particles and a reduction of porosity in the matrix. In addition to that large extents of particle and grain size reduction have been observed. Moreover, the aspect ratio of reinforced particles increased from 4.3 to 8.5 after UT. The analysis of mechanical properties of composite with UT shows improvement in hardness and tensile strength. To understand the effect of reinforced Gr(p) particles, strengthening calculation has been done for untreated and treated composite.
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页数：12
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