AI Article Synopsis
- Chronic animal experiments indicated that aerosols from cast iron welding with nickel-based electrodes can have blastomogenic effects, primarily due to copper and manganese particles.
- Morphological differences, chemical composition, and solubility of these particles significantly influence their toxicity and carcinogenic properties.
- The potential for copper and manganese compounds to reduce nickel's cancer risk highlights the need for improved hygienic standards in welding materials.
Article Abstract
Chronic experiments on animals showed that aerosols formed during cast iron welding and facing due to the use of electrode nickel-based materials could produce blastomogenic effect that was mostly caused by the presence of copper-and manganese-containing aerosols in the particles of the solid component. Morphologic inhomogeneity of the particles of the solid component, qualitative composition and solubility of the compounds spatially arranged in the surface layer were of great importance for their carcinogenic and toxic effect. The capacity of copper- and manganese-containing compounds to suppress nickel carcinogenic effect should be taken into account when developing welding and facing materials with better hygienic characteristics.
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