Hot deformation behavior of Mg-Zn-Al alloy tube processed by severe plastic deformation

• Autorzy: Fata A. , Faraji G. , Mashhadi M. M. , Tavakkoli V.

Identyfikatory

DOI

10.1515/amm-2017-0022

• Języki publikacji: EN

Abstrakty

EN

In the current study, severe plastic deformation (SPD) was applied on a commercial Mg-3Al-1Zn alloy tubes via parallel tubular channel angular pressing (PTCAP) route. Different passes of PTCAP process were applied, and microstructure, hardness and tensile properties at the room, and elevated temperatures were evaluated. The results showed that bimodal microstructure appeared and led to AZ31 alloy represented higher hardness, higher strength with a reasonable elongation at room temperature. Similarly, very high elongation to failure was achieved at a higher temperature. The increase in the number of SPD passes up to two, leads to increasing the ductility up to 263% at 400°C. Then, an increase in the number of PTCAP passes to three, leads to decrease in the ductility as the results of formation of microvoids when SPD processing at higher equivalent strains without a sufficient hydrostatic compressive stress. Relatively ductile fracture mode was also occurred in all samples.

Słowa kluczowe

EN

PTCAP; AZ31 tube; grain refinement; hot deformation; High ductility

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 1
• Strony: 159--166
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Fata A.

• School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, 11155-4563, Iran

autor

Faraji G.

• School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, 11155-4563, Iran

autor

Mashhadi M. M.

• School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, 11155-4563, Iran

autor

Tavakkoli V.

• School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, 11155-4563, Iran

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).