Degradation Characterization and Mechanisms of Warm Rolled Mg-1.6Gd with 95% Reduction Ratio for Biodegradable Implant Applications

• Autorzy: Zakiyuddin Ahmad , Irawan Arya Abietta , Susanti Oknovia , Harjanto Sri

Identyfikatory

DOI

10.24425/amm.2020.133209

• Języki publikacji: EN

Abstrakty

EN

Mg-1.6Gd binary alloy was subjected to uniaxial warm rolling at a unidirectional and cross-sectional with a reduction ratio of 95% in order to observe the relationship between its microstructural changes to the degradation behavior. The warm rolling was performed at a temperature range of its recrystallization temperature, which were 400°C and 560°C, and a feed rate of 10 mm/min. Degradation behaviors of Mg-1.6Gd binary alloy was evaluated by means of potentiodynamic polarization and hydrogen evolution test in modified Kokubo’s SBF solution at temperature of 37 ± 1ºC. The lowest corrosion rate of 0.126 mm/year derived from potentiodynamic polarization test was showed by unidirectional-rolled specimen at temperature of 560°C. Hydrogen evolution test results showed the lowest hydrogen gas formed during 24 hours of immersion was found on unidirectional-rolled specimen at temperature of 560°C with a rate of 0.268 cc/cm²/hours. While cross rolled specimens showed a high corrosion and hydrogen evolution rate of 20 mm/year and 0.28 cc/cm²/hours.

Słowa kluczowe

EN

biodegradable implants; Mg-1.6Gd; warm rolling; Mg-RE; EIS

• 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: 2020
• Tom: Vol. 65, iss. 3
• Strony: 1015--1018
• Opis fizyczny: Bibliogr. 14 poz., fot., rys., tab.

Twórcy

autor

Zakiyuddin Ahmad

• Universitas Indonesia, Department of Metallurgical and Materials Engineering, Depok, Indonesia

autor

Irawan Arya Abietta

• Universitas Indonesia, Department of Metallurgical and Materials Engineering, Depok, Indonesia

autor

Susanti Oknovia

• Universitas Andalas, Department of Mechanical Engineering, Padang, Indonesia

autor

Harjanto Sri

• Universitas Indonesia, Department of Metallurgical and Materials Engineering, Depok, Indonesia

Bibliografia

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Uwagi

EN

1. This research was supported by Direktorat Riset dan Pengabdian Masyarakat Universitas Indonesia (DRPM-UI) under the grant of PITTA UI 2018 No. NKB-0787/UN2.R3.1/HKP.05.00/2019.

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).