Evaluating the Microstructure Evolution and Wear Behavior of Friction stir processed Aluminum Matrix Surface Composites with nano-sized SiC particles

2021 ◽  
Author(s):  
Xiaofeng Yu ◽  
Hua Wu ◽  
Wenbiao Gong
Keyword(s):  
Microstructure Evolution ◽  
Wear Behavior ◽  
Aluminum Matrix ◽  
Friction Stir ◽  
Surface Composites ◽  
Sic Particles ◽  
Matrix Surface

Effect of Processing Parameters on Friction Stir Welded Aluminum Matrix Composites Wear Behavior

2012 ◽  
Vol 27 (12) ◽  
pp. 1419-1423 ◽  
Author(s):  
Adel Mahmood Hassan ◽  
Mohammed Almomani ◽  
Tarek Qasim ◽  
Ahmed Ghaithan
Keyword(s):  
Wear Behavior ◽  
Aluminum Matrix ◽  
Processing Parameters ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Friction Stir

scholarly journals Investigation into Mechanical Properties and Sliding Wear Behavior of Friction Stir Processed Surface Composite Material

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Anbuchezhian Nattappan ◽  
G. Suganya Priyadharshini ◽  
T. Satish Kumar ◽  
T. Velmurugan ◽  
M. Makeshkumar ◽  
...  
Keyword(s):  
Surface Area ◽  
Rotational Speed ◽  
Wear Behavior ◽  
Nickel Surface ◽  
Hard Particle ◽  
High Rotational Speed ◽  
Friction Stir ◽  
Copper Nickel ◽  
Surface Composites ◽  
Uniform Dispersion

One of the different and pioneering solid-state techniques, friction stir processing (FSP), is employed for the production of surface composites. In this research, the matrix selected was copper-nickel (CuNi) with hard boron carbide particle as reinforcement. The objective of the current research work is to produce reinforced 90/10 copper-nickel surface composites reinforced with B4C fabricated via FSP. The influence of tool rotational speed on macrostructure, microstructure, grain size analysis, microhardness, and wear studies of friction stir processed (FSPed) CuNi/B4C surface composites was assessed. For high rotational speed (1400 rpm) of stir tool, the modified surface area found is a maximum of 44.4 mm2 with uniform dispersion of hard particle reinforcement. The presence of hard particle in the surface area is revealed through the electron imaging and the spectroscopic results. Spectra mapping shows the uniform distribution of hard particle over the FSPed area, and the evidence is obtained with XRD analysis. From the experimentation, it is interesting to report that the reinforcements have decreased the surface hardness for an increased rotational speed of stir tool. The hardness recorded for minimum rotational speed is 223 HV which has gradually decreased to 178 HV for 1300 rpm. It has directly influenced the wear rate of modified FSPed, as hardness is directly proportional to wear behavior. The worn surface and fractured morphology of the CuNi/B4C surface composites were also studied using Field Emission Scanning Electron Microscope (FESEM).

Microstructural Evolution and Performance of Friction Stir Welded Aluminum Matrix Composites Reinforced by SiC Particles

2007 ◽  
Vol 539-543 ◽  
pp. 3814-3819 ◽  
Author(s):  
Z.Y. Ma ◽  
A.H. Feng ◽  
B.L. Xiao ◽  
J.Z. Fan ◽  
Li Kai Shi
Keyword(s):  
Aluminum Matrix ◽  
Parent Material ◽  
Weld Nugget ◽  
Aluminum Matrix Composites ◽  
Friction Stir ◽  
Rotation Rates ◽  
Sic Particles ◽  
Lower Tool ◽  
Fsw Parameters ◽  
Tool Rotation

The effect of friction stir welding (FSW) parameters on microstructure and properties of 15vol.%SiCp/2009Al composite welds was investigated at tool rotation rates of 400-1000 rpm for a constant welding speed of 50 mm/min. 8mm thick defect-free welds were produced at higher tool rotation rates of 600-1000 rpm, whereas an unwelded seam was distinctly visible at the root of plates at a lower tool rotation rate of 400 rpm. FSW resulted in generation of fine and equiaxed recrystallized grains of ~6 μm and significant improvement of SiC particle distribution in the weld nugget. Under as-FSW condition, the hardness of the weld nugget was significantly higher than that of as-extruded parent material. Furthermore, tensile and yield strengths of as-FSW composite welds in both the longitudinal and transverse directions were superior to those of as-extruded parent material. Post-weld T4 temper resulted in limited grain growth due to the pinning of SiC particles. Under the T4 condition, the tensile strength of the welds along the longitudinal and transverse directions reached 82 and 95% of the parent material, respectively.

scholarly journals A New Approach to Direct Friction Stir Processing for Fabricating Surface Composites

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 638
Author(s):  
Abdulla I. Almazrouee ◽  
Khaled J. Al-Fadhalah ◽  
Saleh N. Alhajeri
Keyword(s):  
Friction Stir Processing ◽  
Composite Layer ◽  
Aluminum Matrix ◽  
Cylindrical Body ◽  
Processing Parameters ◽  
Metallographic Examination ◽  
New Approach ◽  
Plunge Depth ◽  
Friction Stir ◽  
Surface Composites

Friction stir processing (FSP) is a green fabrication technique that has been effectively adopted in various engineering applications. One of the promising advantages of FSP is its applicability in the development of surface composites. In the current work, a new approach for direct friction stir processing is considered for the surface fabrication of aluminum-based composites reinforced with micro-sized silicon carbide particles (SiC), eliminating the prolonged preprocessing stages of preparing the sample and filling the holes of grooves. The proposed design of the FSP tool consists of two parts: an inner-threaded hollow cylindrical body; and a pin-less hollow shoulder. The design is examined with respect to three important tool processing parameters: the tilt angle of the tool, the tool’s dispersing hole, and the tool’s plunge depth. The current study shows that the use of a dispersing hole with a diameter of 6 mm of and a plunge depth of 0.6 mm, in combination with a tilting angle of 7°, results in sufficient mixing of the enforcement particles in the aluminum matrix, while still maintaining uniformity in the thickness of the composite layer. Metallographic examination of the Al/SiC surface composite demonstrates a uniform distribution of the Si particles and excellent adherence to the aluminum substrate. Microhardness measurements also show a remarkable increase, from 38.5 Hv at the base metal to a maximum value of 78 Hv in the processed matrix in the surface composites layer. The effect of the processing parameters was also studied, and its consequences with respect to the surface composites are discussed.

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