Silicanizing Process On Mild Steel Substrate by Using Tronoh Silica Sand: Microstructure, composition and coating growth

2nd International Manufacturing Engineering Conference; 3rd Asia-Pacific Conference on Manufacturing Systems

Yusnenti, F.M.Y.^1 ; Othman, M.^1 ; Mustapha, Mazli^1 ; MohdYusri, I.^2

Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Perak, Malaysia^1

Department of Mechanical Engineering, Politeknik Ungku Omar, Perak, Malaysia^2

关键词: Coating growth;    Deposition time;    Layer thickness;    Mild steel substrates;    Morphology and structures;    Preferred orientations;    Profile distributions;    Temperature range;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/114/1/012117/pdf
DOI  :  10.1088/1757-899X/114/1/012117

来源: IOP

【 摘 要 】

A new Silicanizing process on formation of coating on mild steel using Tronoh Silica Sand (TSS) is presented. The process was performed in the temperature range 1000- 1100°C and with varying deposition time of 1-4 hours. Influence of the layer and the substrate constituents on the coating compatibility of the whole silicanized layer is described in detail. Morphology and structure of the silicanized layer were investigated by XRF, XRD and SEM. It is observed that diffusion coatings containing high concentrations of silica which profile distribution of SiO2in the silicanized layer was encountered and the depth from the surface to the substrate was taken as the layer thickness. The results also depicted that a longer deposition time have tendency to produce a looser and larger grain a hence rougher layer. The silicanized layer composed of FeSi and Fe2SiO4phases with preferred orientation within the experimental range. It is also found that longer deposition time and higher temperature resulted in an increase in SiO2concentration on the substrate (mild steel).