scholarly journals Fabrication of Intermetallic Compound-dispersed Functionally Graded Materials by the Centrifugal Solid-Particle Method and Centrifugal in-situ Method.

2002 ◽  
Vol 49 (12) ◽  
pp. 1057-1062 ◽  
Author(s):  
Yoshimi Watanabe
Keyword(s):  
Intermetallic Compound ◽  
Solid Particle ◽  
Functionally Graded Materials ◽  
Particle Method ◽  
Functionally Graded ◽  
Graded Materials ◽  
In Situ Method

Fabrication of fiber-reinforced functionally graded materials by a centrifugal in situ method from Al–Cu–Fe ternary alloy

2006 ◽  
Vol 37 (12) ◽  
pp. 2186-2193 ◽  
Author(s):  
Yoshimi Watanabe ◽  
Masahito Kurahashi ◽  
I.-S. Kim ◽  
Shinya Miyazaki ◽  
Shinji Kumai ◽  
...  
Keyword(s):  
Functionally Graded Materials ◽  
Ternary Alloy ◽  
Functionally Graded ◽  
Fiber Reinforced ◽  
Graded Materials ◽  
In Situ Method

Investigation of the microstructure and thermo-mechanical properties of functionally graded materials fabricated by the vibrating centrifugal solid particle method

2021 ◽  
pp. 095440542110641
Author(s):  
Ali Hajisadeghian ◽  
Abolfazl Masoumi ◽  
Ali Parvizi
Keyword(s):  
Mechanical Properties ◽  
Solid Particle ◽  
Functionally Graded Materials ◽  
Centrifugal Casting ◽  
Particle Method ◽  
Outer Radius ◽  
Functionally Graded ◽  
Graded Materials ◽  
Sic Particles ◽  
Inner Radius

In this research, SiC/Al A413.1 functionally graded materials (FGMs) were fabricated by the vibrating centrifugal solid particle method (VCSPM), and the effects of the SiC particles on the microstructure and thermo-mechanical properties of an A413.1 aluminium alloy were investigated. The benefits of a vibration during centrifugal casting of FGMs are illustrated. After designing and fabricating the centrifugal casting machine, cylindrical FGM specimens were produced using the centrifugal solid particle method (CSPM) and VCSPM. This study used SiC particles with an average particle size from 50 to 62 μm as reinforcements to fabricate A413.1-10 wt% SiC functionally gradient composites at three annular mould speeds (900–1500 and 2100 rpm) and with or without a vibration of the mould. The Brinell hardness was measured; the yield strength (YS), ultimate tensile strength (UTS) and Young’s modulus (E) were determined by tensile testing; the density was determined by the Archimedes method; and the thermal expansion coefficients were measured with a dilatometer. A comparison of the samples produced by the conventional method and VCSPM shows a significant reduction in the porosity and an increase in the distribution gradient of the reinforcing particles for the VCSPM case. It can be concluded that in both processes, the mechanical and thermal properties improved in most cases by moving from the inner radius to the outer radius because of the movement of particles towards the outer radius from the centrifugal force. The results also show that the use of a vibration dramatically increased the rate and speed of migration of gas bubbles towards the inner radius, and the mechanical properties (hardness, YS, UTS and E) improved by moving from the inner to outer radius due to an increase in the percentage of silicon carbide particles. Upon increasing the velocity and using the VCSPM, the slope of these changes becomes steeper than those for the vibration-free mode and at low rotation speeds.

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