Diffusion-alloyed flux-cored wire
A flux-cored wire whose metal powder is evenly distributed by diffusion. Prevents hardness peaks and improves weld strength.
Physical-Chemical Mechanism of Action
Diffusion-alloyed cored wire consists of a metal core filled with powder. During welding, the powder diffuses into the weld through the thermal diffusion process and is evenly distributed. This leads to a homogeneous alloying of the weld.
Metallurgical Relevance & Risks in Welding
Without diffusion, hard spots can form, impairing the toughness and formability of the weld. Uniform alloying through diffusion prevents such problems and improves the overall strength of the weld.
Workshop Practice & Instructions for Action
Use diffusion-alloyed cored wire for welding tasks where a homogeneous alloy is essential. Ensure that the welding parameters (temperature, time) are set correctly to ensure optimal diffusion. If handled incorrectly, the effectiveness of the diffusion can be impaired, leading to hard spots.