Novel high entropy alloys as binder in cermets: From design to sintering

A Review of Research Progress on Ti(C,N)-Based Cermet Binder by Intermetallic Compounds and High-Entropy Alloys

“…The preparation process of the high-entropy alloy binder is consistent with that of the intermetallic compound binder, which both need to go through the steps of batching, ball milling, drying, pressing, and sintering [108]. In the batching stage, various raw materials need to be weighed according to the pre-determined recipe proportions to ensure that the composition and proportions of the alloys meet the desired requirements.…”

Design and Selection of High Entropy Alloys for Hardmetal Matrix Applications Using a Coupled Machine Learning and Calculation of Phase Diagrams Methodology

“…To establish this novel methodology, a case study within the HEA field was chosen, centering on the development of hardmetal matrix phases for metal-forming applications that could serve as the basis for further carbide reinforcement to derive improved performance. This case study emphasizes hardness for improved wear resistance and a face-centered cubic (FCC) phase to maximize ductility as body-centered cubic (BCC) phases are typically observed to display a higher hardness, [37] but exhibit lower ductility compared to FCC phases. [7,12,38] For the purposes of this case study, singlephase solid solutions were deemed most beneficial to reduce the number of interfaces present.…”

Synergistic effect of Nb and Mo on the microstructural formation of the Ti(C,N)-high chromium ferrous-based cermets

“…Cermets containing iron and their alloys as binder materials are interesting and could be potential candidates that could compete in cutting and forming applications with conventional hardmetals based on WC-Co/Ni [6][7][8][9]. These so-called "green" cermets materials are of interest for health and environmental reasons, since Co and Ni, W are declared as scarce, expensive, and strategic resources; in particular, these materials are included in the list of critical raw materials (CRMs) and also reported as carcinogens to human health according to European REACH program (Registration, Evaluation, Authorization, and Restriction of Chemical Substances) and US NTP (National Toxicology Program) [10][11][12]. Moreover, the International Agency for Research on Cancer (IARC) has classified nickel compounds in the 1st group as well as nickel metallic and their alloys in the 2B group (conceivable carcinogenic) [13].…”