Superplastic deformation of an x7093 al alloy
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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 degrees C and strain rates of 4.17 x 10(-5) s(-1) to 2.1 x 10(-2) s(-1). The maximum ductility was slightly more than 500% at 524 degrees C and 4.2 x 10 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.
Кључне речи:
superplasticity / deformation mechanisms / 7xxx Al alloysИзвор:
Materiali in Tehnologije, 2014, 48, 3, 321-325Издавач:
- Institute of Metals Technology
Финансирање / пројекти:
- Serbian Ministry of Education, Science and Technology
Институција/група
Inovacioni centarTY - JOUR AU - Tadić, Srđan AU - Sedmak, Aleksandar AU - Prokić-Cvetković, Radica AU - Eramah, Abdsalam M. AU - Rudolf, Rebeka PY - 2014 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2034 AB - 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 degrees C and strain rates of 4.17 x 10(-5) s(-1) to 2.1 x 10(-2) s(-1). The maximum ductility was slightly more than 500% at 524 degrees C and 4.2 x 10 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. PB - Institute of Metals Technology T2 - Materiali in Tehnologije T1 - Superplastic deformation of an x7093 al alloy EP - 325 IS - 3 SP - 321 VL - 48 UR - https://hdl.handle.net/21.15107/rcub_machinery_2034 ER -
@article{ author = "Tadić, Srđan and Sedmak, Aleksandar and Prokić-Cvetković, Radica and Eramah, Abdsalam M. and Rudolf, Rebeka", year = "2014", 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 degrees C and strain rates of 4.17 x 10(-5) s(-1) to 2.1 x 10(-2) s(-1). The maximum ductility was slightly more than 500% at 524 degrees C and 4.2 x 10 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.", publisher = "Institute of Metals Technology", journal = "Materiali in Tehnologije", title = "Superplastic deformation of an x7093 al alloy", pages = "325-321", number = "3", volume = "48", url = "https://hdl.handle.net/21.15107/rcub_machinery_2034" }
Tadić, S., Sedmak, A., Prokić-Cvetković, R., Eramah, A. M.,& Rudolf, R.. (2014). Superplastic deformation of an x7093 al alloy. in Materiali in Tehnologije Institute of Metals Technology., 48(3), 321-325. https://hdl.handle.net/21.15107/rcub_machinery_2034
Tadić S, Sedmak A, Prokić-Cvetković R, Eramah AM, Rudolf R. Superplastic deformation of an x7093 al alloy. in Materiali in Tehnologije. 2014;48(3):321-325. https://hdl.handle.net/21.15107/rcub_machinery_2034 .
Tadić, Srđan, Sedmak, Aleksandar, Prokić-Cvetković, Radica, Eramah, Abdsalam M., Rudolf, Rebeka, "Superplastic deformation of an x7093 al alloy" in Materiali in Tehnologije, 48, no. 3 (2014):321-325, https://hdl.handle.net/21.15107/rcub_machinery_2034 .