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Effect of graphene oxide on the corrosion,mechanical and biological properties of Mg-based nanocomposite

International Journal of Minerals,metallurgy and Materials 2022年第2期29卷 305-319页

作者： Saeid Jabbarzare Hamid Reza Bakhsheshi-Rad Amir Abbas Nourbakhsh Tahmineh Ahmadi Filippo Berto Department of Materials Science Shahreza BranchIslamic Azad UniversityShahrezaIran Advanced Materials Research Center Department of Materials EngineeringNajafabad BranchIslamic Azad UniversityNajafabadIran Department of Mechanical and Industrial Engineering Norwegian University of Science and Technology7491 TrondheimNorway

This study investigates the effect of graphene oxide(GO)on the mechanical and corrosion behavior,antibacterial performance,and cell response of Mg–Zn–Mn(MZM)***/GO nanocomposites with different amounts of GO(i.e.,0.5 wt%,1.0 wt%,and1.5 wt%)were fabricated by the semi-powder metallurgy *** influence of GO on the MZM nanocomposite was analyzed through the hardness,compressive,corrosion,antibacterial,and cytotoxicity *** experimental results showed that,with the increase in the amount of GO(0.5 wt%and 1.5 wt%),the hardness value,compressive strength,and antibacterial performance of the MZM nanocomposite increased,whereas the cell viability and osteogenesis level decreased after the addition of 1.5 wt%***,the electrochemical examination results showed that the corrosion behavior of the MZM alloy was significantly enhanced after encapsulation in 0.5 wt%*** summary,MZM nanocomposites reinforced with GO can be used for implant applications because of their antibacterial performance and mechanical property.

关键词： magnesium-based nanocomposite graphene oxide powder metallurgy method mechanical property antibacterial activity biocompatibility

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Effect of Graphene Nanoplatelets addition on mechanical properties of pure aluminum using a semi-powder method

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Progress in Natural Science:Materials International 2014年第2期24卷 101-108页

作者： Muhammad Rashad Fusheng Pan Aitao Tang Muhammad Asif College of Materials Science and Engineering Chongqing University National Engineering Research Center for Magnesium Alloys Chongqing University Chongqing Academy of Science and Technology School of Materials Science and Engineering Dalian University of Technology

In recent years, graphene has attracted considerable research interest in all fields of science due to its unique properties. Its excellent mechanical properties lead it to be used in nano-composites for strength enhancement. This paper reports an Aluminum–Graphene Nanoplatelets(Al/GNPs)composite using a semi-powder method followed by hot extrusion. The effect of GNP nano-particle integration on tensile, compressive and hardness response of Al is investigated in this paper. It is demonstrated that 0.3 wt% Graphene Nanoplatelets distributed homogeneously in the matrix aluminum act as an effective reinforcing filler to prevent deformation. Compared to monolithic aluminum(in tension), Al–0.3 wt% GNPs composite exhibited higher 0.2% yield strength(+14.7%), ultimate tensile strength(+11.1%) and lower failure strain( -40.6%). Surprisingly, compared to monolithic Al(in compression), Al–0.3 wt% GNPs composite exhibited same 0.2% compressive yield strength and lower ultimate compression strength(- 7.8%),and lower failure strain(- 20.2%). The Al–0.3 wt% GNPs composite exhibited higher Vickers hardness compared to monolithic aluminum(+11.8%).Scanning electron microscopy(SEM), Energy-Dispersive X-ray Spectroscopy(EDS) and X-ray diffraction(XRD) were used to investigate the surface morphology, elemental percentage composition, and phase analysis, respectively.

关键词： powder metallurgy method Mechanical properties Aluminum matrix Graphene nanoplatelets

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Improved mechanical proprieties of“magnesium based composites”with titaniume-aluminum hybrids

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Journal of Magnesium and Alloys 2015年第1期3卷 1-9页

作者： Muhammad Rashad Fusheng Pan Muhammad Asif Jia She Ahsan Ullah College of Materials Science and Engineering Chongqing UniversityChongqing 400044China National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China Chongqing Academy of Science and Technology ChongqingChongqing 401123China School of Materials Science and Engineering Dalian University of TechnologyDalian 116024China Department of Physics Quaid-i-Azam UniversityIslamabad 46000Pakistan

In this study,the effect of micron-sized titanium and aluminum addition on the microstructural,mechanical and work-hardening behavior of pure Mg is *** Mg reinforced with 10%Ti and 10%Ti-1%Al particulates were synthesized through semi-powder metallurgy route followed by hot ***-powder metallurgy appears to be promising approach for the synthesis of Mg based composite,as it is free of ball *** results indicate that the direct addition of micron-sized 10wt.%titanium particulates to pure Mg,caused an improvement in elastic modulus,0.2%yield strength,ultimate tensile strength,and failure strain(+72%;+41%;+29%;and+79%respectively).The addition of micron-sized 10wt.%titanium particles along with 1.0wt.%Al particles to pure Mg,resulted in an enhancement in elastic modulus,0.2%yield strength,ultimate tensile strength,and failure strain(+74%;+56%;+45%;and+241%respectively).Besides tensile test,Vickers hardness and work-hardening behavior of prepared composites were also *** failure strain of Mg-10Ti-1Al composite can be attributed to the better compatibility of Ti particulates with Mg due to presence of alloying element Al.

关键词： Mechanical properties Microstructure powder metallurgy method Metal matrix composite

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