Advertisement

Journal of Materials Science

, Volume 28, Issue 17, pp 4767–4774 | Cite as

Influence of weld parameters on the mechanical properties of spot-welded Fe-Mn-Al-Cr alloy

  • C. J. Lin
  • J. G. Duh
  • M. T. Liao
Papers

Abstract

The static weld strength, hardness and microstructure evolution of a Fe-Mn-Al-Cr alloy during spot welding were investigated. A nugget can be formed for weld times as low as 5 cycles at 60 Hz (83 ms). The nugget growth rate is different between the front and the rear of the acceptable weld region. In the acceptable weld region, the tensile-shear strength ranges from 3038 to 3626 N, and the cross-tension strength varies from 2356 to 3136 N. The static weld strength strongly depends on the nugget size, and the dependence of the static weld strength on the electrode force is affected by the weld time and weld current. Evolution of spot-welded nuggets indicates that the hardness in the nuggets is, on average, about 100 HV higher than that in the base unwelded metal, which is attributed to a cooling effect after welding.

Keywords

Polymer Microstructure Growth Rate Mechanical Property Welding 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    S. K. Banerji, “An Update on Fe-Mn-Al-Steels”, Proceedings of the Workshop on “Conservation and substitution technology for critical materials”, Vanderbilt University, Nashville, Tennessee, June 1981.Google Scholar
  2. 2.
    Idem., “The 1982 Status Report on Fe-Mn-Al steels”, presented at the public workshop on “Trends in critical materials requirements for steels of the future conservation and substitution technology for chromium”, Vanderbilt University, Nashville, Tennessee, October 1982.Google Scholar
  3. 3.
    J. P. Sauer, R. A. Rapp and J. P. Hirth, Oxid. Met. 18 (1982) 285.CrossRefGoogle Scholar
  4. 4.
    C. J. Wang and J. G. Duh, J. Mater. Sci. 23 (1988) 769.CrossRefGoogle Scholar
  5. 5.
    J. G. Duh, J. W. Lee and C. J. Wang, ibid. 23 (1988) 2649.CrossRefGoogle Scholar
  6. 6.
    C. J. Wang and J. G. Duh, ibid. 23 (1988) 2913.CrossRefGoogle Scholar
  7. 7.
    Idem, ibid. 23 (1988) 3447.CrossRefGoogle Scholar
  8. 8.
    J. G. Duh and J. W. Lee, J. Electrochem. Soc. 136 (1988) 847.CrossRefGoogle Scholar
  9. 9.
    J. G. Duh and C. J. Wang, J. Mater. Sci. 25 (1990) 268.CrossRefGoogle Scholar
  10. 10.
    Idem, ibid. 25 (1990) 2063.CrossRefGoogle Scholar
  11. 11.
    Idem, ibid. 25 (1990) 2615.CrossRefGoogle Scholar
  12. 12.
    C. P. Chou and C. H. Lee, ibid. 25 (1990) 1491.CrossRefGoogle Scholar
  13. 13.
    Idem, J. Mater. Sci. Engng A 118 (1989) 137.CrossRefGoogle Scholar
  14. 14.
    Idem, Scripta Metall. A 23 (1989) 901.CrossRefGoogle Scholar
  15. 15.
    C. J. Lin, J. G. Duh and M. T. Liao, submitted to J. Mater. Sci. Google Scholar
  16. 16.
    Japanese Standards Association, JIS Z3136, “Method of tension shear test for spot welded joint” (Japanese Standards Association, Tokyo, 1988).Google Scholar
  17. 17.
    Japanese Standards Association, JIS Z3137, “Method of tension test for spot welded joint” (Japanese Standards Association, Tokyo, 1988).Google Scholar
  18. 18.
    Japanese Standards Association, JIS Z2241, “Method of tensile test for metallic materials” (Japanese Standards Association, Tokyo, 1984) 88.Google Scholar
  19. 19.
    J. E. Gould, Welding Research Supplement, January (1987) 1s.Google Scholar
  20. 20.
    ASM, Metals handbook, 9th edn. Vol. 6 (American Society for Metals, Metals Park, Ohio, 1984) 525.Google Scholar
  21. 21.
    American Welding Society Document, “Recommended Practice for Resistance Welding”, (1966) C1.1–66.Google Scholar
  22. 22.
    D. J. Vanden Bossche, Society of Automotive Engineers (1978) 955.Google Scholar
  23. 23.
    J-O Sperle, Metal Construction 15 (April 1983) 200.Google Scholar
  24. 24.
    B. Pollard, Welding Research Supplement (August 1974) 343s.Google Scholar
  25. 25.
    W. F. Hess and D. C. Herrschaft, Welding Research Supplement (October 1943) 451s.Google Scholar

Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • C. J. Lin
    • 1
  • J. G. Duh
    • 1
  • M. T. Liao
    • 2
  1. 1.Department of Materials Science and EngineeringNational Tsing Hua UniversityHsinchuTaiwan
  2. 2.National Yuen Lin Polytechnic InstituteYuen LinTaiwan

Personalised recommendations