Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
권호 표지

A Study on Ni Base Anti-galling alloy with Finely Dispersed Precipitates

석출상이 분산제어된 내마모성 니켈기 윤활합금 연구

  • Kim, Young-Kyu (School of materials science and engineering, Hongik University) ;
  • Kim, Kyung-Tak (School of materials science and engineering, Hongik University)
  • Published : 2006.08.20
Download PDF
⟨ Previous Next ⟩

Abstract

The effects of Bi and Te on the anti-galling behaviors of Ni base alloy were investigated by SEM, galling test and wear test. Anti-galling characteristics depended on the structure of matrix and distribution of Bi-rich phase which was precipitated at grain boundary. The addition of 5 wt% Bi markably enhanced anti-galling properties. The addition of Te caused Bi-rich precipitates to disperse finely and casting structure to form equiaxed type. From the above tests, the concentration of 5 wt% Bi and 1 wt% Te was selected to optimize in this alloy.

Keywords

References

  1. E. Gerde and M. Marder : Computational and Applied Mathematics and Center for Non-linear Dynamics, The University of Texas at Austin, Austin TX 78712, USA. 'Friction and Fracture'. 1-4
  2. Metals Handbook, Vol. 3, 9th Edition, ASM, (1980) 131
  3. J. A. Schey: Tribology in Metalworking., 'Lubrication of Iron and Nickel-Base Alloys', (1983) 385-387
  4. ASM Specialty Handbook: Stainless Steels, 'Tribological Properties', (1994) 526-539
  5. S. Sahu and G Wis. : U.S. Patent No.6,059,901., 'Bismuthized Cu-Ni-Mn-Zn Alloy', (2000)
  6. W. J. Parana : U.S. Patent No.3,145,099., 'Non-galling (44) Bearing Alloy of Silver in Nickel Base', (1964)
  7. R. W. Thomas and W. C. Williams: U.S. Patent No.2, 743,176., 'Alloy and Method of Manufacture There of', (1956)
  8. M. M. Alabi : U.S. Patent No.5,122,208., 'Hypo-Eutectic Aluminum-Silicon alloy having Tin and Bismuth additions', (1992)
  9. D. K. Subramanyam and J. Hoag : The Bullitin of the Bismuth Institute,. 'Anti-Galling Alloy with Bismuth', 47 (1985). 1-9
  10. ASTM Designation G 77-93 : 'Stadard Test Method for Ranking Resistance of Materials to Sliding Wear Using Block-on-Ring Wear Test', (1996)
  11. S. Sahu : Proceedings from Materials Solutions '97 on Wear of Engineering Materials, 15-18 September 1997, Indianapolis, Indiana., 'Nickel-Base Anti-Galling Alloys', (1997) 251-258