Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Effect of Process Parameters on Laser Overlay Behavior of Fe-based Alloy Powder on Aluminum Substrate

공정 변수에 따른 Al 모재와 Fe계 합금 분말의 레이저 오버레이층 거동

  • 유연곤 (한국생산기술연구원 정밀접합팀) ;
  • 강남현 (부산대학교 재료공학부) ;
  • 김철희 (한국생산기술연구원 정밀접합팀) ;
  • 김정한 (한국생산기술연구원 정밀접합팀) ;
  • 김목순 (인하대학교 금속공학과)
  • Published : 2007.02.28
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Abstract

A joining of dissimilar metal combination faces significant problems such as poor strength and cracking associated with brittle intermetallic compounds(IMC) formed. An application of laser allows low heat input; leading to less dilution and smaller heat affected zone. The $CO_2$ laser overlay was conducted on an AC2B alloy with feeding Fe-based powders. The overlay area was significantly influenced from the travel velocity rather than the powder feeding rate. The interface between the overlay and substrate consisted of the hard and brittle IMC($FeAl_3,\;Fe_3Al,\;Fe_2Al_5$), which initiating and propagating the crack. The reciprocating test for the slide wear was conducted on a multi-pass overlay experiment. Comparing with the multi-pass overlay with no overlap, the overlay with 50% overlap showed better wear resistance.

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References

  1. W.S. Miller, L. Zhuang, J. Bottema, A.J. Wittebrood, P. De Smet, A. Haszler, A. Vieregge. : Recent develpment in aluminium alloys for the automotive industry, Materials Science and Engineering A280 (2000) 37-49
  2. Kawasaki, M. ; Takase, K. ; Kato, S. ; Nakagawa, M. : Development of Engine Valve Seats Directly Deposited Onto Aluminum Cylinder Head by Laser Cladding Process, SAE transactions, 101-3 (in Japanese)
  3. J. Arnold and R. Volz, : Laser Powder Technology for Cladding and Welding, Journal of Thermal Spray Technology Vol. 8(2) June 1999 243-248 https://doi.org/10.1007/s11666-999-0001-3
  4. Jea-Do Kim, Byung-Cheol Jeon, Young-Gon Lee and Dong-Soo Oh, : Characteristics of CO2 Laser Cladding with High Viscosity Mixed Powder, : Journal of KWS, 19-5 (2001) (in Korean)
  5. Nam-Hyun Kang, Hyun-Byung Chae, Jun-Ki Kim, Jeong-Ha Choi and Jeong-Han Kim, : Abrasion Wear Behavior of Recycled Tungsten Carbide Reinforced Metal Matrix Composite, Korean Journal of Materials Research 13-12 (2003) (in Korean) https://doi.org/10.3740/MRSK.2003.13.12.850
  6. Kown-yeong Lee, Sung-hoon Lee, Yangdo Kim, Hyun Seon Hong, Young-min Oh and Seon-jin Kim : The effects of additive elements on the sliding wear behavior of Fe-base hardfacing alloy, Wear. 255 (2003), 481-488 (in Korean) https://doi.org/10.1016/S0043-1648(03)00155-8
  7. A. Wang, C. Fan, C. Xie, W. Huang, and K. Cui, : Laser Cladding of Iron-Base Alloy on Al-Si Alloy and Its Relation to Cracking at the Interface, JMEPEG (1996) vol.5, 775-783 https://doi.org/10.1007/BF02646913
  8. The Korean Welding Society, 'welding & Joining Handbook', 736 (in Korean)