**Author details**

liquid zinc in boundaries and stressed zones ahead of the products may strongly induce interatomic decohesion and segregation [14, 26–28]. The flow-induced localized corrosion on the bare and uncovered matrix as well as some microcracks generating at weak cohesion can burst out, which in turn roughens the interface (e.g., the stage-II in **Figure 11**) [6, 15, 29, 41–44]. Meanwhile, the corrosion products are swept away endlessly by strong flowing zinc in order to reject their deposition and accumulation at the interface. Therefore, a strong synergistic effect of microturbulence and FILC can generate, which depends on the interface film structure and morphology. Accordingly, the present work reveals the importance of

**Figure 11.** Schematic erosion-corrosion mechanism and interface damage under flow-accelerated corrosion (FAC) of the

This work reveals the interface structure and film damage of DS Fe-B alloy with various Fe2B lamellar spacing in flowing zinc as well as the relationship between the interfacial morphol-

**1.** The directional Fe-B alloy with Fe2B [002] orientation perpendicular to the erosion-corrosion interface possesses the best erosion-corrosion resistance to flowing zinc when Fe2B lamellar

**2.** Interfacial Fe2B undergoes strong flowing zinc erosion and cracking at initial erosioncorrosion stage to form a dissolution layer. Besides, the α-Fe/Fe2B phase boundary in DS

interface morphology and effect of Fe2B size on interfacial film damage.

ogy and local flow. The main conclusions are as follows:

spacing equals to 3.67 μm in present conditions.

Fe-B alloy cannot demonstrate obvious corrosion sensitivity.

**4. Conclusions**

DS alloy in flowing zinc.

134 Cavitation - Selected Issues

Shengqiang Ma1 \*, Jiandong Xing1 , Hanguang Fu2 and Shizhong Wei<sup>3</sup>

\*Address all correspondence to: sqma@mail.xjtu.edu.cn and shengqiang012@163.com

1 State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi Province, P.R. China

2 Research Institute of Advanced Materials Processing Technology, School of Materials Science and Engineering, Beijing University of Technology, Beijing, P.R. China

3 National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, Henan University of Science and Technology, Luoyang, P.R. China
