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Numerical and Experimental Study of the Fume Chemical Composition in Gas Metal Arc Welding

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Abstract

Primary particles’ sizes and chemical composition during gas metal arc welding are studied by the welding fume evolution numerical modeling. The inhalable particles’ chemical composition and specific surface area are studied experimentally. The dependencies of both the particles’ sizes and chemical composition on the vapor–gas mixture cooling rate are demonstrated.

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Abbreviations

d :

Particle diameter

e :

Electron charge

E :

Energy

\(E_{\text{s}}\) :

Surface electric field

\(f_{\text{N}}\) :

Size distribution

g :

Component mass fraction

G :

Gibbs free energy

I :

Ionization potential

\(j_{\text{ph}}\) :

Photon flux

\(k_{\text{B}}\) :

Boltzmann constant

\(K_{\text{S}}\) :

Saha constant

\(m_{\text{a}}\) :

Mass of condensable atoms

M():

Moment of size distribution

n :

Number density

N :

Number of atoms in particle

P :

Pressure

r :

Spherical coordinate, radius

\(r_{\text{D}}\) :

Screening length

S :

Supersaturation

T :

Temperature

\(v_{\text{T}}\) :

Thermal velocity

\(V_{\text{b}}\) :

Potential barrier

W :

Work function

X :

Component fraction

z :

Particle charge

\(\beta \) :

Collision kernel

\(\varphi \) :

Electric potential

\(\gamma \) :

Surface free energy

\(\mu \) :

Molecular mass

\(\nu _{\text{e}}\) :

effective electron state density

\(\rho \) :

Density of matter

\(\tau \) :

Time scale

\(\sigma \) :

Standard deviation

\(\Sigma \) :

Statistical weight

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Authors and Affiliations

  1. Physical-Chemical Institute for Environment and Human Protection of Min Edu Sci and Natl Acad Sci Ukraine, 3 Preobrazhenska st., Odessa, UA, 65082, Ukraine

    V. I. Vishnyakov, S. A. Kiro, M. V. Oprya, O. D. Chursina & A. A. Ennan

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  1. V. I. Vishnyakov
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  2. S. A. Kiro
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  3. M. V. Oprya
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  4. O. D. Chursina
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  5. A. A. Ennan
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Correspondence to V. I. Vishnyakov.

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Vishnyakov, V.I., Kiro, S.A., Oprya, M.V. et al. Numerical and Experimental Study of the Fume Chemical Composition in Gas Metal Arc Welding. Aerosol Sci Eng 2, 109–117 (2018). https://doi.org/10.1007/s41810-018-0028-2

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  • DOI: https://doi.org/10.1007/s41810-018-0028-2

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