Comparison of corrosion resistance in physiological saline solution of two austenitic stainless steels – 316LV and REX734

• Autorzy: Romańczuk E. , Oksiuta Z.

Identyfikatory

DOI

10.1515/ama-2017-0014

• Języki publikacji: EN

Abstrakty

EN

In this work two austenitic stainless steels, REX734 and 316LV were tested in terms of their microstructure and corrosion properties. The REX734 is a newer generation stainless steel, with modified chemical composition, in comparison to the 316LV grade. Potentiodynamic study of corrosion resistance was conducted in physiological saline solution (0.9% NaCl solution). In spite of the similarities of microstructure, grain size and phase structure in both materials, the corrosion tests revealed that the REX734, with lower nickel and higher nitrogen content, had better corrosion resistance than 316LV. Repassivation potential in the REX734 was almost six times higher than for the 316LV steel. Superior corrosion resistance of the REX734 steel was also confirmed by surface observations of both materials, since bigger and more densely distributed pits were detected in 316LV alloy.

Słowa kluczowe

EN

REX734 austenitic stainless steel; 316 LV austenitic stainless steel; potentiodynamic corrosion tests; XRD analysis; SEM observation

• Wydawca: Oficyna Wydawnicza Politechniki Białostockiej
• Czasopismo: Acta Mechanica et Automatica
• Rocznik: 2017
• Tom: Vol. 11, no. 2
• Strony: 91--95
• Opis fizyczny: Bibliogr. 28 poz., rys., tab., wykr.

Twórcy

autor

Romańczuk E.

• Faculty of Mechanical Engineering, Bialystok University of Technology, ul. Wiejska 45C, 15-351 Bialystok, Poland

autor

Oksiuta Z.

• Faculty of Mechanical Engineering, Bialystok University of Technology, ul. Wiejska 45C, 15-351 Bialystok, Poland

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Uwagi

This work was supported by the Bialystok University of Technology under the grant No. W/WM/1/2015.

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