Analysis of Corrosion-Resistant Ruthenium-Doped Titanium Alloys by Inductively Coupled Plasma Atomic Emission Spectroscopy

Autor:	A. V. Vyacheslavov, V. B. Bichaev, A. D. Titova, Yu. Yu. Malinkina, T. N. Ermolaeva
Rok vydání:	2019
Předmět:	010302 applied physics Materials science General Chemical Engineering Doping Alloy Metals and Alloys Analytical chemistry Titanium alloy chemistry.chemical_element 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Ruthenium Inorganic Chemistry chemistry Inductively coupled plasma atomic emission spectroscopy 0103 physical sciences Materials Chemistry engineering Sample preparation Inductively coupled plasma 0210 nano-technology Microwave
Zdroj:	Inorganic Materials. 55:1365-1370
ISSN:	1608-3172 0020-1685
DOI:	10.1134/s0020168519140140
Popis:	A technique for analyzing new corrosion-resistant ruthenium-doped titanium alloys using inductively coupled plasma atomic emission spectrometry (ICP-AES) with microwave sample preparation is reported. The composition of a mixture of acids and the temperature and time parameters of sample preparation of titanium alloys under microwave heating in an autoclave ensuring quantitative conversion of the sample into a convenient analytical form without loss of volatile components for subsequent ICP-AES analysis are substantiated. Optimal conditions for the excitation of the analytical signal have been found, and analytical lines of elements without spectral noise have been selected. Samples of experimental melts of industrial titanium alloys of various classes, volumetrically doped with ruthenium, which are under development and are not yet commercially produced in the Russian Federation (alloy PT-7M + Ru, PT-3B + Ru, 5B + Ru, 37 + Ru, VT-22 + Ru) have been studied. The alloy samples contained the following alloying elements (wt %): Al (1.8–6.3); V (1.0–5.5); Mo (0.7–5.5); Zr (0.2–3.0); Cr (0.5–1.5); Fe (0.5–1.5); Ru (0.05–0.15). The correctness of the determination of alloying elements has been confirmed by analyzing standard samples by varying their mass and, in the case of ruthenium, by the “introduced–found” method. The developed method significantly reduces the time of analysis by combining the multielement ICP-AES method with microwave sample preparation, expands the list of detectable elements in titanium alloys, and improves the precision of the results of analysis.
Databáze:	OpenAIRE
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