Rotation-cylinder method for fabrication of SiC particle reinforced magnesium composites

Abstract

A new molten metal mixing process, RCM (Rotation-Cylinder Method) for incorporating reinforcement particles into molten magnesium, has been developed for manufacturing SiC particle reinforced magnesium composites in an ambient atmosphere. The RCM can be characterized by the U-shaped laminar melt surface with the Rankine vortex, which significantly reduces particle agglomeration and entrapped slags, such that composites of improved microstructure and properties can be manufactured successfully in conjunction with the subsequent fabrication processes. The RCM can incorporate SiC particles (5 Jam size and larger) into molten magnesium with particle volume fractions of up to 20 vol.%. In this paper, the development background, the characteristic vortical motions, the optimum manufacturing conditions and the in-process wetting procedures of the RCM are described.

Microstructures and wear property of friction stir welded AZ91 Mg/SiC particle reinforced composite

“…The material used in this study was 10 vol.% SiC particles reinforced AZ91 Mg alloy, which was fabricated by the Rotation-Cylinder Method (RCM), for which the details of the manufacturing process are available in the literature [20]. For the FSW process, the block shaped specimens were sliced by electro discharge machining (EDM).…”

Fabrication of Mg−Ni hydrogen storage alloys by rotation-cylinder method

“…For each experiment, the same procedure was applied only by changing the nickel mass fraction of 3, 6, 9 and 12 mass%. Based on the previous studies [10,11] about the effects of blade depth and rotation speed for incorporation and dispersion of particles, experiment conditions were fixed (blade depth: 70, rotation speed: 13.3 rev · sec −1 ).…”

“…RCM [10,11], which has been developed to manufacture ceramic particle reinforced aluminum and magnesium composites in an ambient atmosphere, can produce a U-shaped laminar melt surface with the Rankine vortex [12]. It is expected that RCM can be utilized to alloy homogeneously two metals with a large melting point difference by incorporating high-melting-point metal chips into a low-melting-point melt.…”

Hydrogenation Properties of Partially Remelted Mg-Ni Alloys

“…For each experiment, the same procedure was applied only by changing the nickel mass fraction of 3, 6, 9 and 12 mass%. Based on the previous studies 7,8) about the effects of blade depth and rotation speed for incorporation and dispersion of particles, experimental conditions were fixed (blade depth: 70 mm, rotation speed: 13.3 rev·s −1 ). Figure 1 shows the illustration of RCM apparatus.…”