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| 1 | Physical,Mechanical,and Tribological Attributes of Stir-Cast AZ91/SiC_p Composite显示文摘In the present investigation,composites with silicon carbide particle(SiCp) as reinforcement and AZ91magnesium alloy as matrix have been synthesized using liquid metal stir-casting technique with optimized processing conditions.The composites with good particle distribution in the matrix,and better grain refinement and good interfacial bonding between the matrix and reinforcement have been obtained.The effect of SiCpcontent on the physical,mechanical,and tribological properties of Mg-based metal matrix composite(MMC) is studied with respect to particle distribution,grain refinement,and particle/matrix interfacial reactions.The electrical conductivity,coefficient of thermal expansion,micro-as well as macro-hardness,tensile and compressive properties,and the fracture behavior of the composites along with dry sliding wear of the composites have been evaluated and compared with the base alloy. | K.K.Ajith Kumar Abhilash Viswanath T.P.D.Rajan U.T.S.Pillai B.C.Pai | 2014 | Acta Metallurgica Sinica(English Letters)2014，27，2： | 8 |
| 2 | Optimization of Machining Characteristics for Al/SiCp Composites using ANN/GA显示文摘The present work is focused on optimization of machining characteristics of AI/SiCp composites. The machining characteristics such as specific energy, tool wear and surface roughness were studied. The parameters such as volume fraction of SiC, cutting speed and feed rate were considered. Artificial neural networks (ANN) was used to train and simulate the experimental data. Genetic algorithms (GA) was interfaced with ANN to optimize the machining conditions for the desired machining characteristics. Validation of optimized results was also performed by confirmation experiments. | R.Karthikeyan B.C.Pai 等 | 2002 | Journal of Materials Science & Technology2002，18，1： | 5 |
| 3 | Self-lubricating bidirectional carbon fiber reinforced smart aluminum composites by squeeze infiltration process显示文摘Self-lubrication is one of the smart material properties required for producing components with enhanced wear resistance and low coefficient of friction.Bidirectional(BD)satin weave polyacrylonitrile(PAN)based carbon fiber(Cf)fabric preform was successfully infiltrated with Al 6061 alloy by squeeze infiltration process.The infiltrated composite shows uniform distribution of carbon fibers in the matrix with the elimination of porosities,fiber damage and close control on the formation of deleterious aluminum carbide(Al4C3)phase.Cf/Al composite exhibits remarkable wear resistance compared to unreinforced alloy due to the formation of self-lubricating tribolayer on the pin surface,which intercepts the contact of matrix metal to counter surface.The BD carbon fiber enhanced the hardness and compressive strength of the composite by restraining the plastic flow behavior of matrix.High resolution transmission electron microscopy shows the presence of Al2O3 and MgAl2O4 spinel,confirmed by EDS and SAD pattern,at the composite interface.The composite shows a lower density of 2.16 g/cm^3 which is a major ad vantage for weight reduction compared to the monolithic alloy(2.7 g/cm^3). | K.M.Sree Manu L.Ajay Raag T.P.D.Rajan B.C.Pai Vijay Petley Shweta Namdeo Verma | 2019 | Journal of Materials Science & Technology2019，35，11： | 4 |
| 4 | Investigation on mechanical properties and creep behavior of stir cast AZ91-SiC_(p) composites显示文摘The room temperature mechanical properties and high temperature creep behavior of AZ91 alloy reinforced with SiC_(p) synthesized via stir casting have been evaluated.The mechanical properties showed improvement with respect to the amount of reinforcement content.The creep testing of the composites carried out at a temperature of 175 ℃ under constant stress of 80,100 and 120 MPa reveals different creep characteristics depending upon the reinforcement content and the applied load.The true stress exponents of different composites calculated from minimum creep rate indicate the possible mechanisms of creep deformation. | Abhilash Viswanath H.Dieringa K.K.Ajith Kumar U.T.S.Pillai B.C.Pai | 2015 | Journal of Magnesium and Alloys2015，3，1： | 3 |
| 5 | Developments in Processing of Functionally Gradient Metals and Metal–Ceramic Composites:A Review显示文摘Functionally gradient/graded materials(FGMs), an emerging new class of materials, are the outcome of the recent innovative concepts in materials technology. FGMs are in their early stages of evolution and expected to have a strong impact on the design and development of new components and structures with better performance. FGMs exhibit gradual transitions in the microstructure and/or the composition in a specific direction, the presence of which leads to variation in the functional performance within a part. The presence of gradual transitions in material composition in FGMs can reduce or eliminate the deleterious stress concentrations and result in a wide gradation of physical and/or chemical properties within the material. Functionally graded metal–ceramic composites are also getting the attention of the researchers. Among the fabrication routes for FGMs such as chemical vapour deposition, physical vapour deposition, the sol–gel technique, plasma spraying, molten metal infiltration, self propagating high temperature synthesis, spray forming,centrifugal casting, etc., the ones based on solidification route are preferred for FGMs because of their economics and capability to make large size products. The present paper discusses and compares various solidification processing techniques available for the fabrication of functionally gradient metals and metal–ceramic composites and lists their properties and possible applications. The other processing methods are briefly described. | T.P.D.Rajan B.C.Pai | 2014 | Acta Metallurgica Sinica(English Letters)2014，27，5： | 3 |
| 6 | Microstructural Characteristics of Underwater Shock Consolidated Aluminum Composites显示文摘Metal matrix composites (MMCs) offer extra strength and high temperature capabilities in comparison with unreinforced metals. Aluminum composites possess higher stiffness, strength, fatigue properties and low weight advantages.Carbon fiber reinforced Al composites (Al-Cf) and silicon carbide particulate reinforced Al composites (Al-SiCp) were shock densified using axisymmetric assemblies for underwater explosions. Unidirectional planar shock waves were applied to obtain uniform consolidation of the composites. The energy generator was a high explosive of 6.9 km/s detonation velocity. Irregular morphological powders of Al were the base material. The reinforcement ratio was 15 Vol. pct for Al-Cf composites and 30 Vol. pct for Al-SiCp composites. The microstructural and the strength characteristics of the shock consolidated Al composites are reported. | K.Raghukandan K.Hokamoto J.S.Lee A.Chiba B.C.Pai | 2003 | Journal of Materials Science & Technology2003，19，4： | 0 |
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