| 1 | Mechanical and wear behaviour of Mg-SiC-Gr hybrid composites显示文摘The present research deals with development and characterisation of magnesium–SiC–Gr hybrid composites through powder metallurgy route.Morphology analysis of the magnesium and reinforcement powder particles has been carried out using particle size analyser(PSA)and X-ray diffraction(XRD),and then the mixed powders were analysed through scanning electron microscope(SEM).The developed composite exhibit increased hardness when compared to base material,which could be attributed to the presence of hard SiC.Furthermore,a slight decrease in hardness is observed for the hybrid composite when compared to Mg–SiC composite due to the presence of soft Gr particles.The tribological properties of the developed composite materials were investigated using pin-on-disc wear test apparatus under dry sliding conditions.The wear resistance of the developed composites improved significantly than that of the magnesium matrix due to the upright effect offered by both of the reinforcements.The SEM analysis was carried out on the worn out surfaces for better understanding of wear mechanisms.5%Gr reinforced Mg-10SiC composites confer better wear resistance among the developed composites. | K.Soorya Prakash P.Balasundar S.Nagaraja P.M.Gopal V.Kavimani | 2016 | Journal of Magnesium and Alloys2016，4，3： | 2 |
| 2 | 6061铝合金/岩粉复合材料的干滑动磨损行为(英文)显示文摘研究岩粉尺寸(10-30μm)和质量分数(5%-15%)对搅拌铸造法制备6061铝合金/岩粉复合材料密度、硬度和干滑动磨损行为的影响。在不同载荷、不同滑动速率和滑动距离条件下在销盘摩擦试验机上对复合材料进行干滑动摩擦磨损试验。采用Taguchi法进行正交试验(L27)设计,并对实验结果进行方差分析。结果表明,载荷和增强相(岩粉)尺寸是影响复合材料样品比摩损率的主要因素,其次为增强相的质量分数、滑动速率、滑动距离,且其影响程度分别为47.61%、28.57%、19.04%、9.52%和4.76%。对所得回归方程的预测精度进行实验论证,结果显示,此回归方程能用于复合材料的磨损率的预测且预测误差很小。复合材料磨损表面的SEM结果表明,以岩粉作为增强相能改善铝合金材料的耐磨性能。 | K.SOORYA PRAKASH A.KANAGARAJ P.M.GOPAL | 2015 | Transactions of Nonferrous Metals Society of China2015，25，12： | 1 |
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