Structure evolution of a WE43 Mg alloy submitted to different thermal treatments

Mengucci, P.; Barucca, G.; Riontino, G.; Lussana, D.; Massazza, M.; Ferragut, R.; Aly, Emad H.

doi:10.1016/j.msea.2007.06.016

Cited by 125 publications

(74 citation statements)

References 11 publications

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“…This is in good agreement with Ref. [8], where the fraction of annihilation in Kapton was found to be 12% in Kapton foil with the same thickness between Mg samples as well as with Monte Carlo simulation [9], which gives 11.7%.…”

Section: Methodssupporting

confidence: 92%

“…Thus, the lifetime observed in the AZ91HP alloy would rather point to the fi rst explanation. However, the comparison between positron lifetimes and Doppler broadening study [8,14] shows that the same lifetimes are observed for positrons trapped in vacancies in a solute-rich environment (i.e., most likely, Al-vacancy or Zn-vacancy complexes in AZ91HP). Because the origin of this component cannot be determined based on its lifetime, it will be discussed based on two different methods of spectra analysis in the later part of the article.…”

Section: Resultsmentioning

confidence: 76%

“…A single component spectrum is often observed in untreated Mg-rich alloys, but usually its lifetime is closer to 225 ps [8,[10][11][12][13]. However, a lifetime of 220 ps was also reported [14].…”

Section: Resultsmentioning

confidence: 99%

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Positron annihilation lifetime spectroscopy study of roller burnished magnesium alloy

Zaleski

Gorgol

2015

Nukleonika

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Abstract. The effect of roller burnishing on Vickers' hardness and positron lifetimes in the AZ91HP magnesium alloy was studied. The microhardness increases with an increase in the burnishing force and with a decrease in the feed. The comparison of various methods of analysis of positron annihilation lifetime (PAL) spectra allowed identifi cation of two components, which are related to solute-vacancy complexes and vacancy clusters, respectively. It was found that the increase in microhardness was related to the increase in the concentration of vacancy clusters.

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Section: Methodssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 76%

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Positron annihilation lifetime spectroscopy study of roller burnished magnesium alloy

Zaleski

Gorgol

2015

Nukleonika

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“…8 point c). Their size and literature data [15] indicates, that they might be the β phase precipitates. The irregular distribution, small volume fraction and relatively large size of these precipitates shows the invalid process of ageing treatment.…”

Section: Influence Of T6 Heat Treatment On Microstructurementioning

confidence: 86%

“…Thus, WE43 magnesium alloy has been chosen for the matrix of investigated composites. Moreover, the mentioned alloy exhibits age-hardening properties, which may enable additional increase of composites' mechanical properties by application of T6 heat treatment [6,[14][15][16]. The chemical composition of WE43 matrix alloy is given in Table 1 (RE represents the mixture of rare earth elements such as neodymium, dysprosium and ytterbium).…”

Section: Methodsmentioning

confidence: 99%

Characterisation of Microstructure of We43 Magnesium Matrix Composites Reinforced with Carbon Fibres

Gryc¹,

Rzychoń²

2016

Archives of Metallurgy and Materials

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In the paper the microstructures of WE43 matrix composites reinforced with carbon fibres have been characterised. The influence of reinforcement type and T6 heat treatment (a solution treatment at 525°C for 8 h, a hot water quench and a subsequent ageing treatment at 250°C for 16 h) on microstructure have been evaluated. The light microscope and scanning electron microscope investigations have been carried out. No significant differences in samples reinforced with non-coated textiles have been reported. The substantial changes in sample reinforced with nickel-coated textile have been observed. The segregation of alloying elements to the matrix-reinforcement layer has been identified. The T6 heat treatment caused the appearance of disperse precipitates of β phase, but the process cannot be considered as satisfactory (irregular distribution, low volume fraction, relatively large size).

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In‐Situ Scanning Electron Microscopy Comparison of Microstructure and Deformation Behavior between WE43‐F and WE43‐T5 Magnesium Alloys

Sano¹,

Yu²,

Davis³

et al. 2011

Magnesium Technology 2011

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Structure evolution of a WE43 Mg alloy submitted to different thermal treatments

Cited by 125 publications

References 11 publications

Positron annihilation lifetime spectroscopy study of roller burnished magnesium alloy

Positron annihilation lifetime spectroscopy study of roller burnished magnesium alloy

Characterisation of Microstructure of We43 Magnesium Matrix Composites Reinforced with Carbon Fibres

In‐Situ Scanning Electron Microscopy Comparison of Microstructure and Deformation Behavior between WE43‐F and WE43‐T5 Magnesium Alloys

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