Abstract No.:	5219
Title:	Design of Fe-based amorphous composite coatings
Authors:	Cheng Zhang* / Huazhong University of Science and Technology, P.R. China Wei Wang/ Huazhong University of Science and Technology, China Yi-Cheng Li/ Huazhong University of Science and Technology, China Lin Liu/ Huazhong University of Science and Technology, China
Abstract:	Thermally sprayed amorphous coatings represent novel high-performance surface materials with a good combination of wear and corrosion resistance. Nevertheless, the limited room-temperature ductility has largely restricted their practice applications in load-bearing environment. The development of amorphous composite coatings might overcome the abovementioned drawbacks. How to design amorphous composite coating is very important yet challenging, for realizing combined good properties. In this paper, we will talk about the design of several kinds of amorphous-matrix composite coating reinforced by various second phases, including ductile 316L stainless steel, Nylon polymers and Al2O3 particles. The microstructure, impact resistance, tribological properties, fatigue behaviour and corrosion of the coatings were investigated in detail. It will be shown that the interfacial structure of matrix/reinforcement, and the properties of the added phases, play critical roles in the performance of such kinds of composite coatings. The trade-off between ductility and corrosion resistance can be mostly overwhelmed in ceramic-reinforced amorphous coatings.

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