Influence of heat treatment on damping behaviour of the magnesium wrought alloy AZ61

González-Martínez, R.; Göken, J.; Letzig, Dietmar; Timmerberg, Josef; Steinhoff, Kurt; Kainer, Karl Ulrich

doi:10.1016/s1006-7191(07)60033-7

Cited by 16 publications

(9 citation statements)

References 13 publications

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“…And it was interpreted successfully by the IF model postulated by Peguin and his coworkers for aluminum [5]. Similar results have been obtained in other studies [19,20]. IF related to microplasticity is characterized by the Eq.…”

Section: The Relationship Between Internal Friction (If) and Microplasupporting

confidence: 82%

Internal friction and microplastic deformation behavior of pure magnesium processed by equal channel angular pressing

Fan

Zheng

et al. 2013

Materials Science and Engineering: A

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a b s t r a c tEqual channel angular pressing (ECAP) was performed on the as-extruded commercial pure magnesium at 250 1C for 4 passes. The internal friction of the ECAPed pure Mg as a function of strain amplitude was investigated by dynamic mechanical analyzer (DMA), and the cyclic microplasticity of pure Mg was investigated by tensile loading and unloading test. After ECAP processing, the grain size is significantly refined, the texture component with basal planes parallel to extrusion direction is replaced by a new stronger one with basal planes having a tilting angle of about 401 to the extrusion direction. The stress in microplastic region is reduced with increasing ECAP passes, while the internal friction increases. The internal friction of Mg at high strain amplitude is closely related to microplastic deformation and can be interpreted by dislocation mechanism. The Granato and Lücke model only satisfies in anelastic regions, while the internal friction in microplastic deformation region should be explained in terms of the internal friction model postulated by Peguin. The internal friction related to microplasticity can be divided into two parts with different activation volumes of dislocation motion, which correspond to the two regions of microplasctic deformation process. The initial stage associated with dislocation motion on basal plane shows larger activation volume and lower friction stress of dislocations. The second stage related to the annihilation and tangle of dislocations is characterized by larger hardening exponent and friction stress.

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Section: The Relationship Between Internal Friction (If) and Microplasupporting

confidence: 82%

Internal friction and microplastic deformation behavior of pure magnesium processed by equal channel angular pressing

Fan

Zheng

et al. 2013

Materials Science and Engineering: A

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show abstract

“…There is good agreement between the theory and experimental results at relatively low value of strain amplitudes, while a deviation from the straight line occurs beyond the strain amplitude of about 0.5%, denoted as e cr2 . In fact, another type of IF has been observed and which is thought to be associated with plastic strain [15][16][17]. The plastic IF explained by Peguin [17] can be obtained by the subtraction of Q 0 À 1 and Q h À 1 (Fig.…”

Section: Internal Friction (If)mentioning

confidence: 99%

Improved mechanical property and internal friction of pure Mg processed by ECAP

Fan

Zheng

et al. 2012

Materials Science and Engineering: A

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“…In general, the corrosion rate of Mg alloys is affected by the precipitated phases significantly. Heat treatment is one of the effective methods to adjust the second phases and therefore to affect the mechanical properties, as well as corrosion properties of Mg alloys [13][14][15]. According to our previous work, it was confirmed that the mechanical properties were closely linked to the different precipitated phases in Mg 95.8 Gd 3 Zn 1 Zr 0.2 alloy with LPSO structure before and after heat treatment [3].…”

Section: Introductionmentioning

confidence: 84%

Effect of Precipitated Phases on Corrosion of Mg95.8Gd3Zn1Zr0.2 Alloy with Long-Period Stacking Ordered Structure

Zong

Wang

Liu

et al. 2016

Acta Metall. Sin. (Engl. Lett.)

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The microstructure of the precipitated phases of Mg 95.8 Gd 3 Zn 1 Zr 0.2 alloys with long-period stacking ordered structure before and after heat treatment is discussed. The corrosion properties of the as-cast (F), solid-solution (T4) and aging-treated (T6) alloys in 1% NaCl solution are studied. The hydrogen evolution and electrochemical measurements display that the as-cast Mg 95.8 Gd 3 Zn 1 Zr 0.2 alloy with the continuous network eutectic phase exhibits the greatest corrosion resistance, while T6 sample with some needle-like phases and the particle phases is the worst among the three alloys. It is proposed to be mainly related to the amount, composition, microstructure and distribution of the precipitated phases.

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Influence of heat treatment on damping behaviour of the magnesium wrought alloy AZ61

Cited by 16 publications

References 13 publications

Internal friction and microplastic deformation behavior of pure magnesium processed by equal channel angular pressing

Internal friction and microplastic deformation behavior of pure magnesium processed by equal channel angular pressing

Improved mechanical property and internal friction of pure Mg processed by ECAP

Effect of Precipitated Phases on Corrosion of Mg95.8Gd3Zn1Zr0.2 Alloy with Long-Period Stacking Ordered Structure

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