Structure and texture of twin roll cast strips of Zn–Cu–Ti zinc alloy

Abstract

The structure and crystallographic texture of zinc strips (Zn–Cu–Ti alloy) produced by the continuous horizontal twin roll strip casting method has been characterized. In longitudinal sections normal to the transverse direction, the strips display an approximately symmetrical chevron patterned structure of columnar grains inclined about 30° from the rolling direction. In association with such structure, the macroscopic texture is mainly a [Formula: see text] ‘normal’ (not cyclic) fibre texture tilted approximately ±30° around the transverse direction plus a similarly tilted weak <0001> fibre texture. A thin layer of small equiaxed grains with a strong (0001) basal texture is present at the free surfaces. The observed structure/texture combination agrees quite well with the expected macrostructure of solidification of the alloy in the twin roll casting process.

Microstructure, phase evolution and corrosion behaviour of the Zn–Al–Mg–Sb alloy coating on steel

“…It was exhibited [10] that incorporation of antimony (Sb) might considerably enhance bonding of the deposited layer and the substrate. In this regard, it was reported that [11][12][13][14][15] cooling curve thermal analysis was employed as essential technique to determine phase formation and solidification path throughout the casting procedure. However, the phase identification and thermodynamic calculations of Zn-Al-Mg-xSb (x = 0, 0.1, 0.3 and 0.5 wt-%) coated steel wires has not been reported yet.…”