Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
권호 표지
DOI QR코드

DOI QR Code

Growth of Intermetallic Compounds by Heat Treatment at Interface of Friction Welded Al-Cu System

Cu-Al 마찰용접 접합부 계면에서 열처리에 따른 금속간화합물 성장

  • Kim, Ki-Young (Asan Friction Welding Co., Ltd) ;
  • Choi, In-Chul (School of Materials Science and Engineering, Kumoh National Institute of Technology) ;
  • ITO, Kazuhiro (Joining & Welding Research Institute) ;
  • Oh, Myung-Hoon (School of Materials Science and Engineering, Kumoh National Institute of Technology)
  • Received : 2019.01.14
  • Accepted : 2019.03.22
  • Published : 2019.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

To investigate the influence of heat treatment on the growth intermetallic compounds (IMCs) at the joint interface of friction-welded Cu-Al, several heat treatments are performed at three different temperature with different times. The experiments reveal three different IMCs layers which are significantly influenced by atomic diffusion of Cu and Al with heat treatment conditions. Since the formation of these IMCs layers can affect mechanical properties of friction-welded Cu-Al interfaces, the relationship between the microstructure of IMCs layers and the tensile strength is analyzed according to heat treatment temperature and times.

Keywords

OCRHB6_2019_v32n2_79_f0001.png 이미지

Fig. 1. Binary alloy phase diagram of Al-Cu [13].

OCRHB6_2019_v32n2_79_f0002.png 이미지

Fig. 2. Shape and dimension of tensile specimen.

OCRHB6_2019_v32n2_79_f0003.png 이미지

Fig. 3. IMC thickness by heat treatment conditions.

OCRHB6_2019_v32n2_79_f0004.png 이미지

Fig. 4. Friction welded joint interface (heat treatment at 400°C, 120 hr).

OCRHB6_2019_v32n2_79_f0005.png 이미지

Fig. 5. EDS elemental mapping image of the Cu-Al interface which is heat-treated at 400°C, during (a) 24 hr, (b) 120 hr, (c) 216 hr. The Cu and Al elements are indicated by Green and red colors, respectively.

OCRHB6_2019_v32n2_79_f0006.png 이미지

Fig. 6. Stress-strain curves under three different heat treatment times at 400°C.

Table 1. Chemical compositions of C1100 and A3003 used in this study

OCRHB6_2019_v32n2_79_t0001.png 이미지

Table 2. SEM image of friction welded interface (heat treatment at 350°C, 400°C, 450°C)

OCRHB6_2019_v32n2_79_t0002.png 이미지

Table 3. Al-Cu composition ratio of IMC layer marked

OCRHB6_2019_v32n2_79_t0003.png 이미지

Table 4. Comparison of tensile strength with heat treatment conditions

OCRHB6_2019_v32n2_79_t0004.png 이미지

References

  1. W. A. Thue : Electrical power cable Engineering, pp. 28-42, CRC Press, New York (1999).
  2. J. De Kock and C. Strauss : Practical Power Distribution for Industry, 1st ed, Newnes, Oxford (2004).
  3. 이영호, 이규천, 최신접합공학, 인터비전 (2008) 77.
  4. W. D. Callister, Jr. and D. G. Rethwisch : Materials Science and Engineering: An Introduction, 9th ed, Wiley, New York (2014).
  5. 이병훈, 연구보고서, 이종재료(Al-Cu) 마찰용접에서 주요용접 변수의 영향에 관한 연구 (1988).
  6. V. T. Witusiewicz, U. Hecht, S. G. Fries, and S. Rex : J. Alloy. Compd. 385 (2004) 133.
  7. T. C. Wei and A. R. Daud : Microelectron. Int. 19 (2002) 38. https://doi.org/10.1108/13565360210427889
  8. W.-B. Lee, K.-S. Bang, and S.-B. Jung : J. Alloy. Compd. 390 (2005) 212. https://doi.org/10.1016/j.jallcom.2004.07.057
  9. M. Abbasi, A. K. Taheri, and M. T. Salehi : J. Alloy. Compd. 319 (2001) 233. https://doi.org/10.1016/S0925-8388(01)00872-6
  10. Uno T, Tatsumi K, Ohno Y. : JSME Joint Conference on Elect. Pack (1992) 771.
  11. J. I. Kim, S. W. Jin and H. N Han : Korean J. Met. Master, 55(6) (2017) 372. https://doi.org/10.3365/KJMM.2017.55.6.372
  12. M. Braunovic and N. Aleksandrov : IEEE Trans Compon. Packag. Manuf. Technol. Part A, 17(1) (1994) 78-85. https://doi.org/10.1109/95.296372
  13. T. B. Massalski, H. Okamoto, P. R. Subramanian, and L. Kacprzak : "Binary Alloy Phase Diagrams," 2nd ed, ASM International, Materials Park, Ohio, USA (1990).
  14. Huixin Zeng, Zhongwu Liu, Wei Li, Jiasheng Zhang, ... Baochun Guo : J. Magn. Magn. Mater. 471(1) (2019) 97-104. https://doi.org/10.1016/j.jmmm.2018.09.080