“…The papers are broadly divided between WC-based hardmetal systems [1][2][3][4], lower density carbides including TiC [5] and NbC [6], and mixed oxide-carbide systems [7]. In two examples, the hardmetal is present as a thin coating on Cr-Ni-Mo based steel substrates [3,4]. There is a strong emphasis among these articles on the evaluation of the material's corrosion behavior [2][3][4][5], highlighting the importance of corrosion resistance in a great many applications, along with their tribological responses [3,7], mechanical behavior [1,4,6,7], and the influence of grain size for near-nano variants [1,2].…”