The forging of Captain America’s shield is slightly different in the comics. In the comics, a scientist named Myron MacLain obtained a small amount of vibranium and tried to create an alloy to make an indestructible armor. Instead, after failing to meld vibranium with iron, and by accident, he created a small amount of an alloy that he then used to create the shield. Interestingly, in the comic universe, adamantium was also invented by Myron MacLain when he tried to replicate the process unsuccessfully, so the metals are clearly related. This, however, they have not been connected in the MCU, though maybe that will change with the Disney/Fox merger and the possibility of more X-Men in the MCU.
Article source: https://www.cinemablend.com/news/2475232/black-panthers-vibranium-vs-wolverines-adamantium-which-is-the-strongest-material