Nanomechanical analysis of AZ31 magnesium alloy and pure magnesium correlated with crystallographic orientation

Bočan, J.; Maňák, Jan; Jäger, Aleš

doi:10.1016/j.msea.2015.07.055

Cited by 37 publications

(6 citation statements)

References 47 publications

(100 reference statements)

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“…This suggests that it is difficult to bidirectional improve the strength and elongation of particle-reinforced magnesium matrix composites. Compared with other AZ31 composites, the 0.5 wt% Ti/AZ31 material in this study has higher tensile strength and better ductility, and both the strength and ductility of the composite increase, which is also consistent with the discussion in Figure 8 [ 73 , 74 ].…”

Section: Resultssupporting

confidence: 87%

Effect of Nano-Ti Particles on Microstructure and Mechanical Properties of Mg-3Al-1Zn Matrix Composites

et al. 2023

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In this paper, a new nanoscale metal Ti particle-reinforced Mg-3Al-1Zn matrix composite was successfully designed and prepared, which is mainly characterized by the fact that in addition to the “light” advantages of magnesium matrix composite, it also realizes bidirectional improvement of strength and ductility of the composite, and can be used as an alternative material for military light vehicle armor and individual armor. The SEM test shows that the nano-Ti particles are uniformly distributed at the grain boundary under the extruded state, which nails the grain boundary, inhibits the grain growth, and significantly refines the grain. XRD tests show that the addition of nano-Ti particles increases the crystallinity of the composite, which is consistent with the SEM test results. In addition, the EBSD test shows that the weakening of the texture of Ti/Mg-3Al-1Zn matrix composites and the increase in the starting probability of slip system are the main reasons for the improvement in ductility. Mechanical tests show that the yield strength, tensile strength, and elongation of the 0.5 wt% Ti/Mg-3Al-1Zn matrix composites exceed the peak values of ASTM B107/B107M-13 by 38.6%, 26.7%, and 20%, respectively.

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Section: Resultssupporting

confidence: 87%

Effect of Nano-Ti Particles on Microstructure and Mechanical Properties of Mg-3Al-1Zn Matrix Composites

et al. 2023

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“…They observed higher hardness for basal plane as compared to the prismatic plane. Bočan et al [8] observed the significant variation in nanohardness with the variation in grain orientations for the pure magnesium as well as AZ31 magnesium alloy. Further, in a work by Stempfé et al [9], it has been observed that wear and friction of silicon on (100) plane is higher as compared to the (111) plane due to relatively higher surface energy and lower strength.…”

Section: Introductionmentioning

confidence: 98%

Effect of grain orientation on friction and wear behavior of AZ91 magnesium alloy

Kumar

2021

Lett. Mater.

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Because of the light weight of magnesium, it has got potential applications in automobile industry. But magnesium has many limitations and due to that it cannot be used directly as a replacement of aluminium and steel. In past, different alloys of magnesium have been developed to overcome the limitations of magnesium without losing other physical and mechanical properties. One of the most important magnesium alloys is AZ91, which gives better properties than magnesium. In the present investigation, commercially available rectangular block of as cast AZ91 magnesium alloy of size 10 ×10 ×10 mm 3 was heat treated at 390°C for 48 h in air and then water quenched to dissolve all the precipitates into matrix. Electron back scattered diffraction (EBSD) analysis of heat-treated sample was done on a field emission scanning electron microscope to know the crystallographic orientations of the individual grains present in the heat treated AZ91 magnesium alloy. Hardness and scratch resistance for the three different crystallographic orientations such as basal, prismatic and pyramidal orientations of AZ91 magnesium alloy grains was measured using an universal nanomechanical tester having Berkovich diamond indenter. Hardness and scratch resistance are found to vary with the variation in crystallographic orientations of the grains. Further wear resistance of these three different grains having basal, prismatic and pyramidal orientations, respectively were measured by atomic force microscopy and correlated with their measured hardness value.

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“…Jian et al [17] and Lorenz et al [18] assessed the look of pop-ins in the nanoindentation and mentioned their existence related to the homogeneous dislocation nucleation (generation) mechanisms. Recent research [19][20][21] confirmed that the "pop-in" behavior in load-displacement curves of coarse-grained pure Mg and AZ31 used to be related to <1012> twins on the surface. The "popin" occasions in the load-displacement curves of asreceived Mg suggest deformation twinning in these materials.…”

Section: Nanoindentation Responsementioning

confidence: 93%

Magnesium nanocomposites reinforced with rare earth element nanoparticles: nanoindentation-driven response

Haghshenas

Gupta

2019

Nanocomposites

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Magnesium (Mg), as the lightest metallic material, is 33% lighter than aluminum which makes it, potentially, a great replacement for aluminum and its alloys. However, Mg in pure and alloyed conditions is brittle at ambient temperature which largely limits their applications. One key solution to enhance the strength and ductility of Mg and its alloys is to embed thermally-stable nano-size reinforcements within the Mg matrix to produce so-called "Mg nanocomposites". The Mg nanocomposites are considering revolutionizing energy-saving lightweight materials of the future with enhanced strength and ductility properties. Mg nanocomposites are, however, at the initial degrees of improvement and consequently, systematic research is required to set up microstructure/property relationships at distinct potential conditions (i.e. temperatures and strain rates). In the present study, a nanoindentation testing approach is adopted to assess ambient-temperature small scale mechanical properties of a group of Mg nanocomposites reinforced with rare-earth element nanoparticles (NPs), i.e. Sm 2 O 3 . This paper tried to assess various nanoindentation-driven properties of the Mg-Sm 2 O 3 nanocomposites and compare them with the pure Mg as the baseline.

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Nanomechanical analysis of AZ31 magnesium alloy and pure magnesium correlated with crystallographic orientation

Cited by 37 publications

References 47 publications

Effect of Nano-Ti Particles on Microstructure and Mechanical Properties of Mg-3Al-1Zn Matrix Composites

Effect of Nano-Ti Particles on Microstructure and Mechanical Properties of Mg-3Al-1Zn Matrix Composites

Effect of grain orientation on friction and wear behavior of AZ91 magnesium alloy

Magnesium nanocomposites reinforced with rare earth element nanoparticles: nanoindentation-driven response

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