Abstract
In this work, tungsten carbide particles (WCp, spherical and irregular particles)-reinforced iron matrix composites were manufactured utilizing a liquid sintering technique. The mechanical properties and the fracture mechanism of WCp/iron matrix composites were investigated theoretically and experimentally. The crack schematic diagram and fracture simulation diagram of WCp/iron matrix composites were summarized, indicating that the micro-crack was initiated both from the interface for spherical and irregular WCp/iron matrix composites. However, irregular WCp had a tendency to form spherical WCp. The micro-cracks then expanded to a wide macro-crack at the interface, leading to a final failure of the composites. In comparison with the spherical WCp, the irregular WCp were prone to break due to the stress concentration resulting in being prone to generating brittle cracking. The study on the fracture mechanisms of WCp/iron matrix composites might provide a theoretical guidance for the design and engineering application of particle reinforced composites.
Highlights
IntroductionParticle reinforced metal matrix composite coating ( named particle reinforced metal matrix surface composites, PRMMSC) has attracted extensive attentions because a metal surface without coating can to suffer abrasion causing the degradation or failure of materials [1]
Particle reinforced metal matrix composite coating has attracted extensive attentions because a metal surface without coating can to suffer abrasion causing the degradation or failure of materials [1]
The WCp /iron matrix surface composites have been extensively used in slurry pump, slurry elbow pipe, liner plate, roll fitting and so forth
Summary
Particle reinforced metal matrix composite coating ( named particle reinforced metal matrix surface composites, PRMMSC) has attracted extensive attentions because a metal surface without coating can to suffer abrasion causing the degradation or failure of materials [1]. The WCp /iron matrix surface composites have been extensively used in slurry pump, slurry elbow pipe, liner plate, roll fitting and so forth. These composites can be fabricated by cast infiltration [2,11,12], powder metallurgy [3], laser cladding [5,6,13,14,15,16,17], and so on, to generate great metallurgical bonding between the surface composite layer and the substrate due to the perfect wettability between WCp and molten ferrous alloy. Particle shape is one of the most important geometric factors for the reinforcement and it can affect the overall performance of composites
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
