Effect of Fe2B orientation morphology on high temperature erosion-wear behavior of Fe–B alloy in liquid zinc

• Published in: Wear Vol. 484-485; p. 204038
• Main Authors: Zheng, Baochao, Wang, Yong, Li, Wei, Yi, Yangliang, Liu, Yangzhen, Cui, Shaogang, Song, Suocheng
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.11.2021; Elsevier Science Ltd
• Subjects: Damage; Erosion -wear; Erosion resistance; Fe-3.5%b steel; Ferrite; Ferrous alloys; High temperature; Liquid zinc; Morphology; Orientation effects; Orientation Fe2B; Protective structures; Wear mechanisms; Wear resistance; Weight loss; Weight reduction; Zinc; Liquid zinc; Orientation Fe2B; Erosion -wear; Fe-3.5%b steel
• ISSN: 0043-1648; 1873-2577
• DOI: 10.1016/j.wear.2021.204038

The interface erosion–wear behaviors of Fe–B alloy with different Fe2B orientations in flowing zinc at 460 °C were studied. The results revealed that, for a rotation speed of 100 rpm, the directional Fe–B alloy with a “Fe2B⊥interface” structure (the [002] orientation of Fe2B) exhibits the best erosion–wear resistance. Moreover, the relationship between the Fe2B orientation and ferrite matrix had a significant effect on the erosion–wear microdamage mechanism. Parallel Fe2B zinc suppressive layers were formed at the “Fe2B⊥interface”, thereby preventing erosion of the matrix by the liquid zinc. Furthermore, Fe–Zn products such as δ-FeZn10 and ζ-FeZn13 formed near the liquid zinc. During the damage process, the directional Fe2B and ferrite matrix structure exhibited a good protective and supporting effect, which combined to reduce the weight loss associated with the damage. •Interaction properties of erosion-wear of Fe–B alloys with different Fe2B orientations.•The erosion-wear interface of directional Fe–B alloy has micro-laminated structure.•The inhibition layer formed at the “Fe2B ⊥ interface”reduces corrosion of the liquid zinc.