scholarly journals Effect of particle size and volume fraction of the reinforcement on the microstructure and mechanical properties of friction welded MMC to AA 6061 aluminum alloy

2021 ◽  
Vol 51 (04) ◽  
pp. 221-227
Author(s):  
I. KIRIK ◽  
N. OZDEMIR ◽  
U. CALIGULU
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Aluminum Alloy ◽  
Volume Fraction ◽  
6061 Aluminum Alloy ◽  
Microstructure And Mechanical Properties ◽  
Effect Of Particle Size

scholarly journals Effect of particle size of Y2O3-Al2O3 additives on microstructure and mechanical properties of Si3N4 ceramic balls for bearing applications

2021 ◽  
Vol 15 (3) ◽  
pp. 297-305
Author(s):  
Jing Zhang ◽  
Wenxue Wang ◽  
Feng Sun ◽  
Weiru Zhang ◽  
Boheng Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Relative Density ◽  
Si3n4 Ceramic ◽  
Sintering Additives ◽  
Microstructure And Mechanical Properties ◽  
Indentation Fracture Toughness ◽  
Effect Of Particle Size ◽  
Gas Pressure Sintering ◽  
Si3n4 Matrix

Si3N4 ceramic balls were prepared by gas pressure sintering with Y2O3 and Al2O3 as sintering additives. The effects of particle size of Y2O3-Al2O3 additives on densification, microstructure and mechanical properties of Si3N4 ceramic balls were investigated. The reliability of Si3N4 ceramic balls was evaluated through the Weibull modulus. The results showed that Si3N4 ceramic balls containing nanosized Y2O3-Al2O3 additives have a higher relative density and better comprehensivemechanical properties compared with the samples containing microsized additives, with relative density of 98.9 ? 0.2%TD, Vickers hardness of 14.7 ? 0.1GPa, indentation fracture toughness of 6.5 ? 0.1MPa?m1/2 and crushing strength of 254 ? 8.5MPa. The more homogeneous and extensive dispersion of the nanosized sintering additives in the Si3N4 matrix is the main reason for the enhancement in density and mechanical properties of the Si3N4 ceramic balls.

scholarly journals Effect of the particle size and volume fraction on superplasticity of SiCp/6061 aluminum alloy composite

2001 ◽  
Vol 51 (2) ◽  
pp. 86-92 ◽  
Author(s):  
Takeo HIKOSAKA ◽  
Tsunemichi IMAI ◽  
Toshiro KOBAYASHI ◽  
Hiroyuki TODA
Keyword(s):  
Particle Size ◽  
Aluminum Alloy ◽  
Volume Fraction ◽  
Alloy Composite ◽  
6061 Aluminum Alloy

Microstructure and Mechanical Properties of a 6061 Aluminum Alloy Part Prepared by Casting-Forging Integrated Forming Technology

2014 ◽  
Vol 788 ◽  
pp. 215-222
Author(s):  
Yong Peng ◽  
Shun Cheng Wang ◽  
Hai Tao Zhou ◽  
Kai Hong Zheng ◽  
He Xing Chen
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Aluminum Alloy ◽  
Ultimate Tensile Strength ◽  
Casting Condition ◽  
6061 Aluminum Alloy ◽  
Forming Technology ◽  
Microstructure And Mechanical Properties ◽  
Heat Treated ◽  
Alloy Part

The effect of applied forging pressure on microstructure and mechanical properties of 6061 aluminum alloy was examined. The results showed that the ultimate tensile strength, elongation and hardness of the alloy after heat-treated treatment increase with the applied forging pressure, and the corresponding highest values, 365MPa, 11.52% and 146.53HV, were obtained at the applied forging pressure of 120MPa. Compared to casting condition without forging pressure, the ultimate tensile strength, elongation and hardness can be increased by 22.8%, 98.2% and 48.7%, respectively. The defects such as the shrinkage pores and cracks were absent in the microstructure due to the applied forging pressure. The SEM observation indicated that the fracture mode of 6061 aluminum alloy is more ductile at higher applied forging pressure.

Influence of Overburning on Microstructure and Property of 6061 Aluminum Alloy

2012 ◽  
Vol 476-478 ◽  
pp. 118-121 ◽  
Author(s):  
Shi Xing Zhang ◽  
Shao Min Qu
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Grain Boundary ◽  
Solution Treatment ◽  
Hardness Test ◽  
Treatment Temperature ◽  
Experimental Results ◽  
Solution Treatment Temperature ◽  
6061 Aluminum Alloy ◽  
Microstructure And Mechanical Properties

Process of solution treatment of 6061 aluminum alloy was done by hardness test and microanalysis in this paper. The effects of different solution treatment temperature on the microstructure and mechanical properties of 6061 aluminum alloy were studied and the influence of overburning on the microstructure and mechanical properties of 6061 aluminum alloy were also analyzed. The experimental results show that overburning occurring while 6061 aluminum alloy is heated above 580°C . The hardness measurements and microstructure analysis results show that the hardness decreased, grain boundary becomes trigemanal and compounded –melting structure (burnt structure) appeared when overburning occuring for this alloy .

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