The effect of immersion time to low carbon steel hardness and microstructure with hot dip galvanizing coating method

Mineral Processing and Technology International Conference 2017

Hakim, A.A.^1 ; Rajagukguk, T.O.^1 ; Sumardi, S.^2

Department of Mechanical Engineering, Faculty of Engineering, University of Malahayati, Bandar Lampung, Indonesia^1

Reseach Unit for Mineral Processing Technology, Indonesian Insitute of Sciences, Indonesia^2

关键词: Coating methods;    Hot-dip galvanizing;    Immersion time;    Layer thickness;    Material protection;    Metal materials;    Quality improvement;    Rockwell hardness;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/285/1/012019/pdf
DOI  :  10.1088/1757-899X/285/1/012019

来源: IOP

【 摘 要 】

Along with developing necessities of metal materials, these rise demands of quality improvements and material protections especially the mechanical properties of the material. This research used hot dip galvanizing coating method. The objectives of this research were to find out Rockwell hardness (HRb), layer thickness, micro structure and observation with Scanning Electron Microscope (SEM) from result of coating by using Hot Dip Galvanizing coating method with immersion time of 3, 6, 9, and 12 minutes at 460°C. The result shows that Highest Rockwell hardness test (HRb) was at 3 minutes immersion time with 76.012 HRb. Highest thickness result was 217.3 μm at 12 minutes immersion. Microstructure test result showed that coating was formed at eta, zeta, delta and gamma phases, while Scanning Electron Microscope (SEM) showed Fe, Zn, Mn, Si and S elements at the specimens after coating.