In this investigation . Zn-Ni-Cu and Zn-Ni-Cu-TiB2 were coated on a mild steel specimen using a high velocity oxy fuel thermal spray (HVOF) process. The surface morphology and coated powder distribution of coated specimens were characterized using scanning electron microscope (SEM). energy dispersive spectroscopy (EDS). https://megavitamines.shop/product-category/beauty/