Bio: C.Y.H. Lim is an academic researcher from National University of Singapore. The author has contributed to research in topics: Machining & Erosion. The author has an hindex of 13, co-authored 20 publications receiving 978 citations.
TL;DR: In this article, the wear behavior of Mg-based metal-matrix composites reinforced with silicon carbide particulates (SiC p ) during dry sliding was investigated using a pin-on-disc configuration against a hardened tool-steel counterface under loads of 10 and 30 n and within a sliding velocity range of 0.2 and 5.0 n.
TL;DR: In this paper, the wear characteristics of Mg composites containing various amounts (up to 1.11vol%) of nano-sized alumina particulates in pin-on-disc dry sliding tests against hardened tool steel, using a range of sliding speeds from 1 to 10m/s, under a constant load of 10 N.
TL;DR: In this paper, wear characteristics of magnesium alloy, AZ31B, and its nano-composites were investigated using a pin-on-disk configuration against a steel disk counterface under different sliding speeds.
TL;DR: In this article, the effects of particle size on the erosion characteristics, such as erosion pattern, erosion rate, erosion mechanism and erosion profile, were investigated using both experiments and numerical simulations.
TL;DR: In this article, slurry erosion experiments of stainless steel SUS-304 were carried out using new advanced erosion test rig, where the multiphase flows of alumina sand and water were utilized as the erodents.
TL;DR: In this article, the authors focus on the recent development in the synthesis, property characterization and application of aluminum, magnesium, and transition metal-based composites reinforced with carbon nanotubes and graphene nanosheets.
Abstract: One-dimensional carbon nanotubes and two-dimensional graphene nanosheets with unique electrical, mechanical and thermal properties are attractive reinforcements for fabricating light weight, high strength and high performance metal-matrix composites. Rapid advances of nanotechnology in recent years enable the development of advanced metal matrix nanocomposites for structural engineering and functional device applications. This review focuses on the recent development in the synthesis, property characterization and application of aluminum, magnesium, and transition metal-based composites reinforced with carbon nanotubes and graphene nanosheets. These include processing strategies of carbonaceous nanomaterials and their composites, mechanical and tribological responses, corrosion, electrical and thermal properties as well as hydrogen storage and electrocatalytic behaviors. The effects of nanomaterial dispersion in the metal matrix and the formation of interfacial precipitates on these properties are also addressed. Particular attention is paid to the fundamentals and the structure–property relationships of such novel nanocomposites.
TL;DR: In this paper, composite of Mg reinforced with 0.5, 1 and 2 vol.% of Y2O3 nanoparticles were fabricated using disintegrated melt deposition technique.
TL;DR: In this paper, the influence of tool rotational speed, traverse speed, number of FSP passes, shift of rotational direction between passes and particle size was studied on distribution of SiC particles in metal matrix, microstructure, microhardness and wear properties of specimens.
TL;DR: In this paper, a review of magnesium nanocomposites containing ceramic and metallic reinforcements synthesized using liquid based (Disintegrated Melt Deposition Technique) and solid based (Powder Metallurgy and Microwave Sintering) processing techniques is presented.
25 Jan 2011-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this paper, the authors investigated the structural, mechanical properties and wear resistance of FSP-processed materials as a function of volume fraction of SiC particles and found that adding micro-and nano-sized particles decreases the tensile strength and percent elongation.
Abstract: In this experiment, copper-base composites reinforced with 30 nm and 5 μm SiC particles are fabricated on the surface of a purecopper sheetvia friction stir processing (FSP). Microstructure, mechanical properties and wear resistance of friction stir processed (FSPed) materials are investigated as a function of volume fraction of SiC particles. Results show that, applying FSP, without SiC particles, increases the percent elongation significantly (more than 2.5 times) and decreases copper's strength. Adding micro- and nano-sized SiC particles decreases the tensile strength and percent elongation. Increasing the volume fraction or decreasing the reinforcing particle size enhances the tensile strength and wear resistance and lowers the percent elongation.