High temperature formability of graphene nanoplatelets-AZ31 composites fabricated by stir-casting method

Rashad, Muhammad; Pan, Fusheng; Liu, Yanglu; Chen, Xianhua; Lin, Han; Pan, Rongjian; Asif, Muhammad; She, Jia

doi:10.1016/j.jma.2016.11.003

Cited by 89 publications

(33 citation statements)

References 30 publications

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“…In particular, Zn is an effective alloying element that can improve the mechanical properties of magnesium alloys [15][16][17] . Hence, high strength Mg-Zn alloys have a broad application prospect in many fields [18][19][20][21] . However, only limited studies have been reported on the details of the strain hardening behavior of Mg-Zn alloys.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Strain hardening of as-extruded Mg-xZn (x = 1, 2, 3 and 4 wt%) alloys

Zhao

Chen

Pan

et al. 2019

Journal of Materials Science & Technology

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117

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The influence of Zn on the strain hardening of as-extruded Mg-xZn (x = 1, 2, 3 and 4 wt%) magnesium alloys was investigated using uniaxial tensile tests at 10-3 s-1 at room temperature. The strain hardening rate, the strain hardening exponent and the hardening capacity were obtained from true plastic stress-strain curves. There were almost no second phases in the as-extruded Mg-Zn magnesium alloys. Average grain sizes of the four as-extruded alloys were about 17.8 μm. With increasing Zn content from 1 2 to 4 wt%, the strain hardening rate increased from 2850 MPa to 6810 MPa at (σ-σ0.2) = 60 MPa, the strain hardening exponent n increased from 0.160 to 0.203, and the hardening capacity, Hc increased from 1.17 to 2.34. The difference in strain hardening response of these Mg-Zn alloys might be mainly caused by weaker basal texture and more solute atoms in the α-Mg matrix with higher Zn content.

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Section: Accepted Manuscriptmentioning

confidence: 99%

Strain hardening of as-extruded Mg-xZn (x = 1, 2, 3 and 4 wt%) alloys

Zhao

Chen

Pan

et al. 2019

Journal of Materials Science & Technology

Self Cite

117

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“…The SEM micrographs investigation reveals that microstructure consists of uniform distribution of fine Beryl, GNPs, and intermetallic compounds dispersed along the grain boundary in the matrix of Al 7075 and there is good bonding between Beryl, GNPs and Al7075 alloy. Uniform dispersal and better bonding of Beryl and GNPs within Al 7075 enhance the properties [21]. Figure 5 shows X-ray diffraction configurations of as-cast Al7075 alloy and hybrid reinforced with Beryl and GNPs.…”

Section: Microstructural Characterizationmentioning

confidence: 99%

“…X-ray intensity for Beryl particles indicates at 11.6° (2θ-angle). GNPs peaks have occurred at 26° [21]…”

Section: Microstructural Characterizationmentioning

confidence: 99%

“…The most important GNPs exhibit better bonding and wettability with aluminum. Rashad et al reported that claimed that, hardness and ultimate tensile strength of AZ31-3wt.% of GNPs led to improvement when compared to AZ31 fabricated by stir casting process [21]. GNPs are having low density and hence increase the usage in lightweight applications where weight of metal matrix composites is to be reduced.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure, Tensile Properties and Hardness Behavior of Al7075 Matrix Composites Reinforced With Graphene Nanoplatelets And Beryl Fabricated by Stir Casting Method

Patil,

Haneef

2019

IJEAT

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In this research, an effort is made to familiarize and best potentials of the reinforcing agent in aluminum 7075 matrices with naturally occurring Beryl (Be) and Graphene (Gr) to develop a new hybrid composite material. A stir casting technique was adopted to synthesize the hybrid nanocomposites. GNPS were added in volume fractions of 0.5wt%, 1wt%, 1.5wt%, and 2wt% and with a fixed volume fraction of 6 wt.% of Beryl. As cast hybrid composites were microstructurally characterized with scanning electron microscopy and X-ray diffraction. Microstructure study through scanning electron microscope demonstrated that the homogeneous distribution reinforcement Beryl and GNPs into the Al7075 matrix. Brinell hardness and tensile strength of synthesized materials were investigated. The hybrid Al7075-Beryl-GNPs composites showed better mechanical properties compared with base Al7075 matrix material. The ascast Al7075-6wt.% Beryl-2wt.%GNPs showed 49.41% improvement in hardness and 77.09% enhancement in ultimate tensile strength over Al7075 alloy.

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“…Magnesium alloys, as the lightest conventional structural material, can deal with the regulations of energy conservation and environmental pollution [1]. However, their low strength and poor plastic properties at ambient temperature restrict their applications in industrial fields [2,3]. Enhancing the strength and ductility of magnesium alloys through chemical alloying and thermal processes is an effective way to expand the scope of their application [4].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Mg–6Al–1Sn–0.3Mn Alloy Sheet Fabricated through Extrusion Combined with Rolling

et al. 2018

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Hot rolling was carried out in this study to modify the microstructures of an extruded Mg–6Al–1Sn–0.3Mn alloy sheet and investigate its effects on mechanical properties. After hot rolling, the grains and second phase of the extruded alloy sheet were remarkably refined, and the c-axis of a few grains was parallel to the transverse direction. The strength improvement was mainly attributed to the grain and Mg17Al12 particle refinement due to the Hall–Petch effect and the Orowan mechanism. The random orientation of the fine grains resulted in improving ductility and anisotropy.

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High temperature formability of graphene nanoplatelets-AZ31 composites fabricated by stir-casting method

Cited by 89 publications

References 30 publications

Strain hardening of as-extruded Mg-xZn (x = 1, 2, 3 and 4 wt%) alloys

Strain hardening of as-extruded Mg-xZn (x = 1, 2, 3 and 4 wt%) alloys

Microstructure, Tensile Properties and Hardness Behavior of Al7075 Matrix Composites Reinforced With Graphene Nanoplatelets And Beryl Fabricated by Stir Casting Method

Microstructure and Mechanical Properties of Mg–6Al–1Sn–0.3Mn Alloy Sheet Fabricated through Extrusion Combined with Rolling

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