Effects of metal vapor on electron temperature in helium gas tungsten arcs

被引：37

作者：

Terasaki, H ^{[1
]}

Tanaka, M ^{[1
]}

Ushio, M ^{[1
]}

机构：

[1] Osaka Univ, JWRI, Ibaraki, Osaka 5670047, Japan

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2002年 / 33卷 / 04期

关键词：

D O I：

10.1007/s11661-002-0219-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to investigate the effects of metal vapor on the thermodynamic property of arc plasma in the welding process, electron temperatures in the pure helium plasma and in the helium plasma during welding in gas tungsten arcs (GTAs) were measured by using the laser scattering method. The experimental results showed that metal vapor led to a significant decrease in the electron temperature compared with that of pure helium GTA plasma. The temperature difference reached 6000 K in the arc fringe at the maximum.

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页码：1183 / 1188

页数：6

相关论文

共 25 条

[1] THE INFLUENCE OF COPPER VAPOR ON THE TRANSPORT-COEFFICIENTS IN A NITROGEN ARC PLASMA [J].

ABDELHAKIM, H ;

DINGUIRARD, JP ;

VACQUIE, S .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1980, 13 (08) :1427-1438

[2] A departure from local thermodynamic equilibrium within a freely burning arc and asymmetrical Thomson electron features [J].

Bentley, RE .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1997, 30 (20) :2880-2886

[3] IMPACT OF ANODE EVAPORATION ON THE ANODE REGION OF A HIGH-INTENSITY ARGON ARC [J].

ETEMADI, K ;

PFENDER, E .

PLASMA CHEMISTRY AND PLASMA PROCESSING, 1985, 5 (02) :175-182

[4] TEMPERATURE DETERMINATIONS IN A FREE-BURNING ARC .3. MEASUREMENTS WITH MOLTEN ANODES [J].

FARMER, AJD ;

HADDAD, GN ;

CRAM, LE .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1986, 19 (09) :1723-1730

[5] CALCULATION OF NET EMISSION COEFFICIENT OF THERMAL PLASMAS IN MIXTURES OF GAS WITH METALLIC VAPOR [J].

GLEIZES, A ;

GONZALEZ, JJ ;

LIANI, B ;

RAYNAL, G .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1993, 26 (11) :1921-1927

[6]

Glickstein S. S., 1980, Arc Physics and Weld Pool Behaviour, P1

[7]

GLICKSTEIN SS, 1976, WELD J, V55, pS222

[8] MATHEMATICAL-MODELING OF A FREE-BURNING ARC IN THE PRESENCE OF METAL VAPOR [J].

GONZALEZ, JJ ;

GLEIZES, A ;

PROULX, P ;

BOULOS, M .

JOURNAL OF APPLIED PHYSICS, 1993, 74 (05) :3065-3070

[9] Thomson scattering measurements in atmospheric plasma jets [J].

Gregori, G ;

Schein, J ;

Schwendinger, P ;

Kortshagen, U ;

Heberlein, J ;

Pfender, E .

PHYSICAL REVIEW E, 1999, 59 (02) :2286-2291

[10]

GVOZDETSKII VS, 1980, AUTOMAT WELD+, V33, P17