Investigation of the influence of process parameters on hot extrusion of magnesium alloy tubes

Hsiang, Su-Hai; Lin, Yu-Chi

doi:10.1016/j.jmatprotec.2007.04.063

Cited by 42 publications

(14 citation statements)

References 7 publications

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“…Keeping the extrusion ratio constant, it has been suggested that the net result is an increase in temperature, whose magnitude is a linear function of the logarithmic ram speed [13]. Probably, this is the reason that finer grain sizes have been observed at lower ram velocities [14,15]. FEM simulations have shown an increases of surface temperature by ∼50 • C when the extrusion ratio is increased from 10 to 25 or from 25 to 50 while keeping the initial billet temperature constant at 250 • C [15].…”

Section: Resultsmentioning

confidence: 99%

Influence of extrusion parameters on microstructure and texture developments, and their effects on mechanical properties of the magnesium alloy AZ80

Shahzad

Wagner

2009

Materials Science and Engineering: A

166

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Section: Resultsmentioning

confidence: 99%

Influence of extrusion parameters on microstructure and texture developments, and their effects on mechanical properties of the magnesium alloy AZ80

Shahzad

Wagner

2009

Materials Science and Engineering: A

166

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“…Magnesium is namely regarded to become the most lightweight construction material in future. Magnesium with density of 1.7 g cm −3 is nearly five times lighter than steel and even lighter than aluminium (approximately 30 % less) [1][2][3]. It is the eighth most abundant element in the earth's crust and its reserves are almost unlimited due to the presence in sea water.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of as-cast and extruded Mg-4Zn and Mg-4Zn-0.4Ca alloys

HRADILOVA¹,

VOJTĚCH²

2021

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This work studied the effect of extrusion and alloying with 4 wt.% of Zn and 0.4 wt.% of Ca on the structure and mechanical properties of magnesium. Light, scanning electron microscopy, X-ray diffraction, hardness, compressive and tensile tests were used for this purpose. The addition of zinc led to the formation of MgZn and further alloying with calcium changed the nature of the secondary phase to Ca2Mg6Zn3. The process of extrusion resulted in significant structural refinement, which was the most pronounced for the Mg-4Zn-0.4Ca alloy. In this alloy the average grain size was 6 µm. The extrusion improved all the measured characteristics and the most pronounced improvement was observed in the case of tensile yield strength. The presence of calcium improved the positive effect of zinc on the mechanical properties of magnesium. Differences in the mechanical behaviour of magnesium and its alloys were discussed in relation to structural variations resulting in different strengthening effects.K e y w o r d s : magnesium alloys, microstructure, extrusion, mechanical properties

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“…On the other hand, the taking place of twinning strongly depends on the grain size [6]. For Mg alloy extrusions, the forming speed is one of the important factors which influence the extent of the dynamic recrystallization (DRX) process [7]. So the mechanical properties of Mg alloy extrusions are mainly depended on the extruded speed.…”

Section: Introductionmentioning

confidence: 99%

Effect of Extrusion Speed on the Microstructure and Tensile Properties of AZ31 Alloy

Yang

Wang

et al. 2016

MATEC Web Conf.

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Abstract. The influences of extrusion speed on the microstructure and tensile properties of AZ31 alloy were investigated. The results suggested that the yield and tensile strength of AZ31 alloy decrease but elongation increases with the reduction of extruded speed. High speed extrusion produces fine grains with texture of c-axis perpendicular with extruded direction. The tension deformation is dominated by slip and the formed texture is obstructive for the basal slip, and also the inhomogeneous structure formed at high speed extrusion is harmful to the ductility. Samples extruded at low speed have comparatively homogeneous and coarse microstructure. Twinning provided more tension deformation and the lattice rotation induced by twinning is favorable for the activities of new slip systems, which induced the better ductility of AZ31 alloy.

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Investigation of the influence of process parameters on hot extrusion of magnesium alloy tubes

Cited by 42 publications

References 7 publications

Influence of extrusion parameters on microstructure and texture developments, and their effects on mechanical properties of the magnesium alloy AZ80

Influence of extrusion parameters on microstructure and texture developments, and their effects on mechanical properties of the magnesium alloy AZ80

Mechanical properties of as-cast and extruded Mg-4Zn and Mg-4Zn-0.4Ca alloys

Effect of Extrusion Speed on the Microstructure and Tensile Properties of AZ31 Alloy

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