Startseite Effect of Cr3C2 content on the microstructure and properties of Mo2NiB2-based cermets
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Effect of Cr3C2 content on the microstructure and properties of Mo2NiB2-based cermets

  • Lang Xie , XiaoBo Li , Dan Zhang , ChengMing Yang , FuCheng Yin und YiFeng Xiao
Veröffentlicht/Copyright: 15. Oktober 2015
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 106 Heft 10

Abstract

Four series of Mo2NiB2-based cermets with Cr3C2 addition of between 0 and 7.5 wt.% in 2.5 wt.% increments were studied by means of scanning electron microscopy, energy dispersive X-ray analysis and X-ray diffractometry. The transverse rupture strength and hardness were also measured. It was found that Cr3C2 completely dissolved in Mo2NiB2-based cermets. Cr3C2 addition improved the wettability of the Ni binder phase on the Mo2NiB2 hard phase, which resulted in a decrease in the porosity and an increase in the phase uniformity. The cermets with 2.5 wt.% Cr3C2 content showed relatively fine grains and almost full density. A high Cr3C2 content resulted in the formation of M6C (M = Mo, Cr, Ni) phase. In addition, energy dispersive X-ray spectroscopy results showed that the content of Mo in the binder decreased with increasing Cr3C2 content. The cermets with 2.5 wt.% Cr3C2 addition exhibited the highest transverse rupture strength of 2210 MPa, whereas the cermets without Cr3C2 addition exhibited the highest hardness.

Keywords: Mo2NiB2-based cermets; Cr3C2; Mechanical properties; Microstructure
*Correspondence address, Lang Xie, School of Materials Science and Engineering, Xiangtan University, Xiangtan 411105, Hunan, P.R. China, Tel.: +8615200320281, Fax: +86073158292213, E-mail:

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Received: 2015-03-11
Accepted: 2015-06-09
Published Online: 2015-10-15
Published in Print: 2015-10-14

© 2015, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. On the widths of the hysteresis of mechanically and thermally induced martensitic transformations in Ni–Ti-based shape memory alloys
  5. The effects of external compressive stress on the kinetics of low temperature bainitic transformation and microstructure in a superbainite steel
  6. The effect of compressing pressure on the microstructure and properties of W-10 wt.% Cu composite
  7. Simulation of dendritic growth of Al-4 wt.% Cu alloy from an undercooled melt
  8. Effects of contact pressure and sliding distance on the lubricated friction and wear properties of Zn-25Al-3Cu alloy: A comparative study with SAE 65 bronze
  9. Electrochemical behaviour of stainless steel in acidic fluoride media
  10. Quick fabrication of appropriate morphology and composition CoFe films with desirable microwave properties
  11. Piezo-absorbing effect of microwave absorbing composites with carbonyl iron particles as the filler
  12. Nanocomposite based on polyaniline emeraldine-base and α-Al2O3: A structural characterization
  13. Effect of Cr3C2 content on the microstructure and properties of Mo2NiB2-based cermets
  14. Short Contributions
  15. Damage mechanisms in aluminum-matrix composites reinforced with nano-alumina particles
  16. Synthesis of ultrafine powder of vanadium carbide V8C7 by microwave heating
  17. People
  18. Prof. Dr. Werner Skrotzki on the occasion of his 65th birthday
  19. DGM News
  20. DGM News
https://doi.org/10.3139/146.111283
Schlagwörter für diesen Artikel
Mo2NiB2-based cermets; Cr3C2; Mechanical properties; Microstructure

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. On the widths of the hysteresis of mechanically and thermally induced martensitic transformations in Ni–Ti-based shape memory alloys
  5. The effects of external compressive stress on the kinetics of low temperature bainitic transformation and microstructure in a superbainite steel
  6. The effect of compressing pressure on the microstructure and properties of W-10 wt.% Cu composite
  7. Simulation of dendritic growth of Al-4 wt.% Cu alloy from an undercooled melt
  8. Effects of contact pressure and sliding distance on the lubricated friction and wear properties of Zn-25Al-3Cu alloy: A comparative study with SAE 65 bronze
  9. Electrochemical behaviour of stainless steel in acidic fluoride media
  10. Quick fabrication of appropriate morphology and composition CoFe films with desirable microwave properties
  11. Piezo-absorbing effect of microwave absorbing composites with carbonyl iron particles as the filler
  12. Nanocomposite based on polyaniline emeraldine-base and α-Al2O3: A structural characterization
  13. Effect of Cr3C2 content on the microstructure and properties of Mo2NiB2-based cermets
  14. Short Contributions
  15. Damage mechanisms in aluminum-matrix composites reinforced with nano-alumina particles
  16. Synthesis of ultrafine powder of vanadium carbide V8C7 by microwave heating
  17. People
  18. Prof. Dr. Werner Skrotzki on the occasion of his 65th birthday
  19. DGM News
  20. DGM News
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