Measurement of the Anode Spot Temperature of a Plasma Arc Discharge

Autor:	L. M. Simonyan, Ya. L. Kats
Rok vydání:	2018
Předmět:	010302 applied physics Zirconium Materials science Metals and Alloys Analytical chemistry chemistry.chemical_element Tungsten 01 natural sciences Cathode 010305 fluids & plasmas law.invention Anode Anode spot Plasma arc welding Nickel chemistry law 0103 physical sciences Argon atmosphere
Zdroj:	Russian Metallurgy (Metally). 2018:1147-1151
ISSN:	1555-6255 0036-0295
DOI:	10.1134/s0036029518120133
Popis:	The temperature distribution over the melt surface in an anode spot is measured during plasma arc heating of a metal at a pressure of 10 and 0.1 MPa in an argon atmosphere by a spectral method. The measurements are performed in the wavelength range where the discharge continuum intensity is minimal (240–450 nm). The spectral regions that are free of lines (340, 440 nm) are chosen to determine the anode (melt) and cathode (tungsten) temperatures. The tungsten cathode temperatures are 3160 and 3317 K at a discharge current of 150 and 220 A, respectively, and a pressure of 10 Pa. At a discharge current of 150 A, the maximum iron melt surface temperature in an anode spot is 3031 K. At a pressure of 0.1 MPa and 225 A, the maximum temperatures at the iron, tungsten, zirconium, and nickel melt surfaces are 2960, 4120, 4040, and 3590 K, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2de3af0a3bf8595ef5bbe689d5b4edf3 https://doi.org/10.1134/s0036029518120133 Zobrazit plný text záznamu Full text from SpringerLink