An overview is given of the detailed microstructure of cemented carbides of types WC-Co and WC-MC-Co. and of titanium Ž . carbo-nitride based cemented carbides cermets . The manufacturing process is first described, and the changes in composition that occur during manufacturing are discussed. The mi
Materials science of cemented carbides — an overview
✍ Scribed by G.S Upadhyaya
- Publisher
- Elsevier Science
- Year
- 2001
- Weight
- 120 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0261-3069
No coin nor oath required. For personal study only.
✦ Synopsis
The processing and properties of cemented carbides are highly dependent on the basic nature of the component, i.e. hard carbide and soft metal binder phases. The present overview covers the nature of refractory carbides and binders, phase equilibria, and sintering and mechanical properties. The role of microstructural evolution during sintering is also highlighted.
📜 SIMILAR VOLUMES
The fracture toughness of a number of cemented carbide alloys have been determined; using a wedge-impact method for precracking. The materials were of WC-Co type with cobalt content ranging from 6 to 25 wt-% and mean carbide grain size between 1.0 and 3.3 pm. Within the investigated composition rang
This study describes the alloy design approaches for processing high-performance hard metals for metal cutting and mining applications. In fine-grained hardmetals for metal-cutting applications, combined addition of VC and Cr C in optimal 3 2 proportion as grain-growth inhibitors enhances both the h