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Title:Superplastic deformation of an X7093 Al alloy
Authors:ID Tadić, Srdjan (Author)
ID Sedmak, Aleksandar (Author)
ID Prokić-Cvetković, Radica (Author)
ID Eramah, Abdsalam (Author)
ID Rudolf, Rebeka (Author)
ID Inštitut za kovinske materiale in tehnologije (Copyright holder)
Files:.pdf Materiali_in_Tehnologije_2014_Tadic_et_al._Superplastic_deformation_of_an_X7093_Al_alloy.pdf (580,64 KB)
MD5: 824C21F0773BF5950031BD1E66B1308B
 
URL http://mit.imt.si/Revija/izvodi/mit143/tadic.pdf
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:We have investigated the superplastic deformation mechanism of a powder-metallurgy, high-zinc X7093 Al alloy. The objective was to examine the rate-controlling mechanisms that govern its superplastic deformation. The investigations were carried out in the temperature range 490–524 °C and strain rates of 4.17 × 10–5 s–1 to 2.1 × 10–2 s–1. The maximum ductility was slightly more than 500 % at 524 °C and 4.2 × 10–4 s–1. The values of the stress exponent (n) and the activation energy (Q) indicated that the deformation is rate-controlled by the climb within the grain-boundary diffusion path. The existence of a temperature-dependent threshold stress was confirmed.
Keywords:superplasticity, Al alloys, deformation mechanisms
Publication status:Published
Publication version:Version of Record
Year of publishing:2014
Number of pages:str. 321-325
Numbering:Letn. 48, št. 3
PID:20.500.12556/DKUM-65238 New window
ISSN:1580-2949
UDC:620.172.21:669.715
ISSN on article:1580-2949
COBISS.SI-ID:17823254 New window
NUK URN:URN:SI:UM:DK:FMC5DKES
Publication date in DKUM:23.03.2017
Views:1349
Downloads:89
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
TADIĆ, Srdjan, SEDMAK, Aleksandar, PROKIĆ-CVETKOVIĆ, Radica, ERAMAH, Abdsalam and RUDOLF, Rebeka, 2014, Superplastic deformation of an X7093 Al alloy. Materiali in tehnologije [online]. 2014. Vol. 48, no. 3, p. 321–325. [Accessed 22 March 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=65238
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Record is a part of a journal

Title:Materiali in tehnologije
Shortened title:Mater. tehnol.
Publisher:Inštitut za kovinske materiale in tehnologije
ISSN:1580-2949
COBISS.SI-ID:106193664 New window

Secondary language

Language:Slovenian
Title:Superplastična deformacija Al-zlitine X7093
Abstract:Izvršena je bila študija mehanizma superplastične deformacije Al-zlitine 7093 s cinkom, izdelane po postopku metalurgije prahov. Cilj je bila preiskava mehanizma kontrole hitrosti, ki ureja superplastično deformacijo zlitine. Preiskave so bile izvršene v temperaturnem območju 490–524 °C in hitrostih obremenjevanja 4,17 × 10–5 –2,1×10–2 s–1. Maksimalna duktilnost je bila malo nad 500-odstotna pri 524 °C in 4,2 × 10–4 s–1. Vrednosti napetostnega eksponenta (n) in aktivacijska energija (Q)so pokazale, da je hitrost deformacije kontrolirana s plezanjem po difuzijskih poteh v mejah zrn. Potrjen je tudi obstoj tempera- turno odvisnega praga napetosti.
Keywords:superplastičnost, aluminijeve zlitine, deformacije, mehanizmi


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