Effect of the Temperature Factor on the Morphology of a Copper–Zinc Alloy during Anodic Polarization in a Molten Chloride

Autor:	E. V. Nikitina, V. B. Malkov, E. A. Karfidov, N. A. Kazakovtseva, N. G. Molchanova
Rok vydání:	2019
Předmět:	Materials science Alloy Metals and Alloys chemistry.chemical_element Zinc engineering.material Electrochemistry Copper Brass chemistry Chemical engineering visual_art visual_art.visual_art_medium engineering Polarization (electrochemistry) Dissolution Eutectic system
Zdroj:	Russian Metallurgy (Metally). 2019:101-103
ISSN:	1555-6255 0036-0295
DOI:	10.1134/s0036029519020095
Popis:	The effect of temperature in the range from 350 to 650°С on the morphology of L63 brass (37 wt % Zn) during selective anodic dissolution in the eutectic salt melt of lithium, cesium and potassium chlorides is studied. Anodic polarization is accompanied by a change in the state of electrode surface due to the passage of the electronegative alloy component (zinc) into a corrosive medium and to the vacancy-induced rearrangement of the electropositive component (copper). Microscopy, gravimetry, chemical analysis, and hydrostatic weighing are used to estimate the laws of formation of a developed anode surface under galvanostatic conditions of the electrochemical dissolution of the bimetallic alloy. An increase in the temperature leads to a decrease in the selectivity of alloy dissolution, the porosity, and the developed surface of the materials.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3ac3d87b70d3548fa1ac22388a064c4e https://doi.org/10.1134/s0036029519020095 Zobrazit plný text záznamu Full text from SpringerLink