The role of Si and Ti additions on the formation of the alloy layer at the interface of hot-dip Al–Zn coatings on steel strips

Efecto de la composición química en el comportamiento mecánico de recubrimientos galvanizados por inmersión en caliente: una revisión

“…Por otra parte, F. García et al, [11] han estudiado el efecto de la adición del silicio y del titanio en la intercara recubrimiento/sustrato para galvanizados ZnAl; observando que el aumento del contenido de Si en la aleación líquida con valores cercanos a 1,45 % en peso provoca una reducción del espesor promedio de la capa de un compuesto intermetálico formado en la intercara recubrimiento/sustrato, a valores cercanos a 1 µm. Además, indican que este efecto es mejorado aún más, mediante la adición de pequeñas cantidades de Ti a la aleación líquida.…”

Preparation of ceramic coatings on inner surface of steel tubes using a combined technique of hot-dipping and plasma electrolytic oxidation

“…The tongue-like morphology suggests diffusion of iron and Al elements in the hot-dip process. The morphology also implies that metallurgical reaction that takes place at the surface of the steel substrate as it enters the liquid alloy leads to formation of intermetallic compounds [10].…”

Effect and controlling mechanism of vanadium on Fe–Al interface reaction in Al–Zn bath

“…Thus, it is highly desirable to keep the thickness of the intermediate compound layer to be as thin as possible [1,8]. Extensive studies have shown that adding small amount of alloying element, such as titanium (Ti), magnesium (Mg), copper (Cu), and rare-earth (RE), etc., to the hot-dip bath could influence the Fe-Al reaction [9][10][11][12][13][14]. According to the result of Heumann et al [15], only 70% atom positions are saturated in the c-axis direction of Fe 2 Al 5 lattice, which means that it is easily to form Fe-Al compound layers as Al atoms diffuse to the surrounding of Fe atoms.…”