Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Effect of Volume Fraction of Chromium Carbide on Fracture Toughness of the Iron/Chromium Hardfacing Alloy

철/크롬 오버레이합금의 파괴인성에 미치는 크롬탄화물 양의 영향

  • Published : 1998.04.01
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Abstract

This study aims a investigating the effect of volume fraction of chromium carbide phase(VFC) of hardfaced iron/chromium alloys on fracture toughness. The alloys were deposited twice on a mild steel plate using self-shielding flux cored arc welding process. In order to examine VFC effect, different VFC (0.28∼0.62) were employed by changing the Cr and C content, while the ratio of Cr/C was fixed in the range of 5.7∼6.6. Fracture toughness was constant as increasing VFC because fracture surface was developed in the eutectic phase which was growing parallel with introduced sharp notch in the hypoeutectic alloys, but fracture toughness did not decreased in spite of increasing volume fraction of coarse primary chromium carbide phase which was easily craced at the low stress because the growth direction of chromium carbide phase were more irregular as increasing VFC in the hypereutectic alloys.

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References

  1. Surface Engineering for Wear Resistance K. G. Budinski
  2. A.F.S. Trans. v.69 T. E. Normal;A. Solomon;D. V. Doane
  3. U. S. Patent No. 3,410,682
  4. Structure and Properties of Engineering Series W. F. Smith
  5. ASRM A532-87 Standard Specification for Abrasion-Resistant Cast Iron ASTM
  6. 박사학위논문, 포항공대 고크롬철계 육성합금의 긁힘마모 및 파괴현상 백응률
  7. 대한용접학회지 v.16 no.1 고크롬 철계 오버레이용접층의 긁힘마모 거동에 미치는 크롬탄화물 양의 영향 백응률
  8. 대한용접학회지 v.16 no.1 고크롬 철계 오버레이용접층의 긁힘 마모 거동에 미치는 기지상의 영향 백응률
  9. 대한용접학회지 v.16 no.2 저응력하의 철/크롬 오버레이합금의 긁힘마모기구 백응률
  10. International Materials Reviews v.41 no.2 Microstructure-Property Relationships in High Chromium White Iron Alloys C. P. Tabrett;I. R. Sare;M. R. Ghomashchi
  11. Proc. Symp. 'Materials for the Mining Industry' Optimizing Abrasion Resistance and Toughness in Steel and Irons for the Mining Industry D. E. Diesburg;F. Borik
  12. J. Metals v.32 Fracture Toughness of White Cast Irons K-H Z. Gahr;W. G. Scholz
  13. Br. Foundryman v.74 Fractography of High Chromium Alloys R. W. Durmann
  14. AFS Trans. v.79 Choice of Appropriate Compositions for Chromium-Molybdenum White Irons F. Maratray
  15. Eng. Fract. Mech. v.16 Z.-B. Kuang
  16. Metall. Trans. A v.7A R. O. Ritchie;B. Francis;W. L. Serve
  17. Metall. Trans. A v.9A R. O. Ritchie;R. M. Horn
  18. Acta Metall. Mater. v.42 Y. H. Kim;D. Kwon;S. Lee
  19. Metall. Trans. A v.25A S. Lee;T. H. Kim;D. Kwon
  20. ASTM E399-83 ASTM Standard Test Method for Plane-Strain Fracture Toughness of Metallic No. terials ASTM
  21. Z. Metallkd. v.71 Fracture Analysis of White Cast Iron K-H. Z. Gahr
  22. Metall. Trans. v.27A Correlation of Microstructure and Fracture Toughness in High-Chromium White Iron Hardfacing Alloys S. H. Lee;S. H. Choo;E. R. Baek;S. H. Ahn;N. J. Kim
  23. J. Iron Steel Inst. v.207 D. J. Dyson;K. W. Andrews
  24. Wear v.89 The Use of Transmission Electron Microscopy to Study the Effect of Abrasive Wear on the Matrix Structure of a High Chromium Cast Iron J. T. H. Pearce