Composites from WC powders sputter-deposited with iron rich binders
Source abstract
Abstract
Abstract Composite powders of tungsten carbide (WC) and iron rich binder were prepared by an innovative approach, which consists in sputtering of a metallic binder on the tungsten carbide particles. The phase composition, microstructure and mechanical behaviour of WC coated powder composites with binder contents from 6 to 9 wt.% were characterized. η-Phase is early formed during sintering and its effect on the mechanical behaviour was investigated and related to the microstructure and atomic structure. The results show that the presence of η-phase has not a hazardous role in toughness as is previewed in conventional cemented carbide. Despite the presence of η-phase, a good compromise between toughness and hardness was attained in composites prepared from iron rich binders sputtered on WC powders.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced materials and composites · Metal and Thin Film Mechanics · Advanced ceramic materials synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (35)
Show source-provided references
1. Transformation-toughening in cemented carbides. Part I. Binder composition control10.1007/BF02647089 ↗
2. Martensitic transformations in cements with a metastable austenitic binder10.1016/0921-5093(91)90771-E ↗
3. Phase diagrams as a tool for production and development of cemented carbides and steels10.1179/pom.1992.35.3.203 ↗
4. WC–(Fe, Ni, C) hardmetals with improved toughness through isothermal heat treatments10.1007/BF00349891 ↗
5. The sintering characteristics and properties of hard metal with Ni–Cr binders10.1016/0025-5416(88)90506-X ↗
6. Nickel in hardmetals10.1016/0263-4368(92)90056-8 ↗
7. Stainless steel coatings sputter-deposited on tungsten carbide powder particles10.1016/S0257-8972(03)00021-5 ↗
8. Particle surface properties of stainless steel-coated tungsten carbide powders10.1016/j.powtec.2006.03.005 ↗
9. Sintering of tungsten carbide particles sputter-deposited with stainless steel10.1016/S0263-4368(03)00029-5 ↗
10. Mechanical characterization of composites prepared from WC powders coated with Ni rich binders10.1016/j.ijrmhm.2007.12.001 ↗
11. Control of eta carbide formation in tungsten carbide powders sputter-coated with (Fe/Ni/Cr)10.1016/j.ijrmhm.2006.07.004 ↗
12. Study of sintering variables of tungsten carbide particles sputter-deposited with stainless steel10.4028/www.scientific.net/MSF.455-456.295 ↗
13. Means of predicting structure and performance of new materials10.1179/pom.1989.32.4.269 ↗
14. High-strength tungsten carbides
15. High-strength tungsten carbides
16. The structure of carbides in alloy steels. Part II—carbide formation in high-speed steels
17. A.C. Larson, R.B. Von Dreele, LAUR 86-748 Report, General Structure Analysis System, Los Alamos National Laboratory, 1990.
18. A note on the structure of tungsten carbide10.1107/S0365110X6100067X ↗
19. Application of coincidence site lattices for crystal structure description. Part I. Σ=310.1107/S0108768187098380 ↗
20. Ultra-microhardness testing procedure with Vickers indenter10.1016/S0257-8972(01)01413-X ↗
21. Grain size measurement methods for WC/Co hardmetals
22. An ultra-low-load penetration hardness tester10.1088/0022-3735/15/1/023 ↗
23. Vickers indentation curves of elastoplastic materials
24. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation10.1557/JMR.1992.1564 ↗
25. A new approach for reverse analyses in depth-sensing indentation using numerical simulation10.1016/j.actamat.2006.08.019 ↗
26. Vickers indentation fracture toughness test. Part 1. Review of literature and formulation of standardised indentation toughness equations10.1179/mst.1989.5.9.865 ↗
27. Phase-equilibria and phase-diagrams in carbide systems10.1007/BF02645350 ↗
28. An assessment of the Fe–Ni–W–C phase diagram
29. Microstructure, hardness and toughness of nanostructured and conventional WC–Co composites10.1016/S0965-9773(98)00123-8 ↗
30. Quantitative analysis of the effect of the binder phase composition on grain growth in WC–Co sintered materials10.1023/A:1024418131674 ↗
31. Microstructure evolution in the cemented carbides WC–Co. I. Effect of the C/W ratio on the morphology and defects of the WC grains10.1002/1521-396X(200209)193:2<271::AID-PSSA271>3.0.CO;2-O ↗
32. Fracture toughness and fracture of WC–Co composites10.1007/BF00708272 ↗
33. Tungsten carbide hard metals cemented with ferroalloys
34. Sintering of submicron WC–10%Co hard metals containing nickel and iron10.1016/0025-5416(88)90503-4 ↗
35. The eta-carbides in the quaternary system Fe–W–C–Cr at 1250°C10.1016/0025-5416(77)90210-5 ↗