Iron Plates Modified with ZrO2 Coatings by Surface Mechanical Attrition Alloy and Heat Treatment
In this study, a two-step treatment including surface mechanical attrition alloy treatment (SMAAT) and heat treatment process has been developed to coat ZrO2 powders mechanically on pure iron. A fine-grained ZrO2 alloy surface layer with a thickness of 100 μm
has been formed on a coarse-grained pure iron sheet. The thickness of the coatings was effectively increased and the formation of the alloy phase were promoted by repeated SMAAT combined with heat treatment. A significant alloy enhanced microstructure and a gradient increase in hardness from
the coarse-grained core to the top coating surface have been shown by the microstructural and microhardness measurements. As a result, the average hardness of the coating increases up to 450 HV which is four folds that of the iron matrix sample. The roughness of the interface between target
and coating was shown to ensure the strong bonding.
Keywords: ALLOYING; ATTRITION; COATING; IRON; SURFACE; ZRO2
Document Type: Research Article
Publication date: 01 October 2017
- Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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