Microstructural evolution during large strain hot rolling of an AM60 Mg alloy

Pérez‐Prado, M.T.; Valle, Jorge F. del; Contreras, Juan; Ruano, Oscar Antonio

doi:10.1016/j.scriptamat.2003.11.014

Cited by 205 publications

(85 citation statements)

References 15 publications

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“…Compositional maps obtained by EDX show that Zn and Al are homogeneously distributed in the Mg matrix in both Types I and II samples. After the processing route [28], some particles of Mn-rich phase (Al 6 Mn) still remained present in the microstructure as can be seen in Figure 7.…”

Section: Discussionmentioning

confidence: 88%

Corrosion behaviour of AZ31 magnesium alloy with different grain sizes in simulated biological fluids☆

et al. 2010

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The comparative study of the corrosion behaviour of the AZ31 magnesium alloy with different grain sizes immersed in simulated body fluids was made in chloride solutions (8g/L) and Phosphate Buffer-containing Solution (PBS). The influence of the immersion time was also analysed. Electrochemical techniques such as the open circuit potential, polarization curves, current transients and electrochemical impedance spectroscopy, complemented with scanning electron microscopy and energy dispersive spectroscopy were used. Immediately after the immersion in the corrosive media the corrosion resistance was similar for both grain sizes of the AZ31 alloy and higher in 2 NaCl solutions than in PBS. However, this corrosion behaviour was reversed after longer periods of immersion due to the stabilizing of the corrosion products of MgO and/or Mg(OH) 2 with P-containing compounds. These P-compounds contribute to a higher level of protection by hindering the aggressive action of chloride ions. The best corrosion behaviour of the AZ31 alloy was obtained for the finest grain alloy associated with the highest transfer resistance value, after long periods of immersion in PBS.

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Section: Discussionmentioning

confidence: 88%

Corrosion behaviour of AZ31 magnesium alloy with different grain sizes in simulated biological fluids☆

et al. 2010

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“…These considerably inhibit AZ91's widespread application. Some research focused on grain refinement of AZ91 using severe plastic deformation (SPD) techniques, [1][2][3] including equal channel angular pressing (ECAC) 4,5 and accumulative roll bonding (ARB), [6][7][8] which can improve both the strength and ductility. Nevertheless, SPD techniques have difficulty satisfying industrial needs due to their low production efficiency and high manufacturing cost.…”

Section: Introductionmentioning

confidence: 99%

Improved ductility of aged Mg-9Al-1Zn alloy strip by electropulsing treatment

et al. 2009

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The effect of electropulsing treatment (EPT) on the microstructure and mechanical properties of aged Mg-9Al-1Zn alloy strip was studied. EPT was found to accelerate tremendously the b phase spheroidization in the aged Mg-9Al-1Zn alloy. This improved microstructure exhibits excellent mechanical properties, that is, increasing elongation to failure significantly without loss of tensile strength. The spheroidization of the b phase during EPT was attributed to the reduction of the nucleation thermodynamic barrier and enhancement of atomic diffusion.

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“…Hot working is defined as the application of deformation under the conditions of temperature and strain rate such that recovery and recrystallization processes take place simultaneously with the deformation [44]. Recovery and recrystallization processes in magnesium and its alloys are dependent on several factors such as temperature [45,46], strain rate [47], the operative deformation mechanism [48][49][50][51][52], texture [53][54][55], etc. Several studies were performed to understand the influence of each of these factors by compression or torsion tests [46, 48-51, 56, 57].…”

Section: Effect Of Processing On Grain Size and Texturementioning

confidence: 99%

Influence of thermomechanical processing on the grain size, texture and mechanical properties of Mg-Al alloys

Srinivasarao¹,

Valle²,

Ruano³

et al. 2012

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The work carried out by the authors over the last decade on the processing, microstructural characterization and the mechanical behaviour of Mg alloys is reviewed. In particular, the potential for grain refinement and for the development of specific textures of large strain hot rolling (LSHR), equal channel angular pressing (ECAP) and accumulative roll bonding (ARB) is discussed. The recrystallization and the deformation mechanisms predominant in Mg alloys are analysed as a function of the grain size and the texture in a wide range of stresses, strain rates and temperatures. Finally, the feasibility of superplastic forming of Mg alloys was examined, taking into account the influence of factors such as grain size stability and microstructural heterogeneities.K e y w o r d s : magnesium alloys,

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Microstructural evolution during large strain hot rolling of an AM60 Mg alloy

Cited by 205 publications

References 15 publications

Corrosion behaviour of AZ31 magnesium alloy with different grain sizes in simulated biological fluids☆

Corrosion behaviour of AZ31 magnesium alloy with different grain sizes in simulated biological fluids☆

Improved ductility of aged Mg-9Al-1Zn alloy strip by electropulsing treatment

Influence of thermomechanical processing on the grain size, texture and mechanical properties of Mg-Al alloys

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