The effect of quenching on the solidification structure and transformation behavior of stainless steel welds
Rent the article at a discountRent now
* Final gross prices may vary according to local VAT.Get Access
Weld solidification structure of three different types of stainless steel,i.e., 310 austenitic, 309 and 304 semiaustenitic, and 430 ferritic, was investigated. Welds of each material were made without any quenching, with water quenching, and with liquid-tin quenching during welding. The weld micro-structure obtained was explained with the help of the pseudobinary phase diagrams for Fe-Cr-Ni and Fe-Cr-C systems. It was found that, due to the postsolidification 5 → γ phase transformation in 309 and 304 stainless steels and the rapid homogenization of microsegregation in 430 stainless steel, their weld solidification structure could not be observed unless quenched from the solidification range with liquid tin. Moreover, the formation of acicular austenite, and hence, martensite, at the grain boundaries of 430 stainless steel welds was eliminated completely when quenched with liquid tin. The weld solidification structure of 310 stainless steel, on the other hand, was essentially unaffected by quenching. Based upon the observations made, the weld microstructure of these stainless steels was summarized. The effect of cooling rate on the formation of primary austenite in 309 stainless steel welds was discussed. Finally, a simple method for determining the relationship between the secondary dendrite arm spacing and the solidification time, based on welding speeds and weld pool configurations, was suggested.
- H. Fredriksson:Metall. Trans., 1972, vol. 3, p. 2989.
- J. C. Lippold and W. F. Savage:Welding Journal, 1979, vol. 59, p. 362s.
- S. A. David, G. M. Goodwin, and D.N. Braski:Welding Journal, 1979, vol. 59, p. 330s.
- J. A. Brooks: Ph.D. Thesis, Dept. of Metallurgical Engineering and Materials Science, Carnegie-Mellon University, Pittsburgh, PA, 1981, p. 51.
- Y. Arata, F. Matsuda, and S. Katayama:Trans. JWRI, 1976, vol. 5, p. 35.
- S. Kou:Metall. Trans. A, 1981, vol. 12A, p. 2025.
- S. Kou, T. Kanevsky, and S. Fyfitch:Welding Journal, in press.
- Metals Handbook, 8th edition, ASM, Metals Park, OH, 1973, vol. 1, p. 1142.
- Metallography, Principles and Procedures, Leco Corporation, St. Joseph, MI, 1977, p. 45.
- J. M. McTighe and J. Beech:Metallography, 1977, vol. 10, p. 363. CrossRef
- Metals Handbook, 8th edition, American Society for Metals, Metals Park, OH, 1973, vol. 8, p. 424.
- J. C. Lippold and W. F. Savage:Welding Journal, 1980, vol. 60, p. 48s.
- N. Suutala, T. Takalo, and T. Moisio:Welding Journal, 1981, vol. 61, p. 92s.
- G. A. Chadwick:Metallography of Phase Transformations, Crane, Russak & Company, New York, NY, 1972, p. 233.
- T. B. Massalski:Materials Science and Engineering, 1976, vol. 25, p. 119. CrossRef
- H. W. Kerr and G. L. Leone: unpublished research, University of Waterloo, Waterloo, Canada, 1981.
- R. Castro and J. J. de Cadenet:Welding Metallurgy of Stainless and Heat-Resisting Steels, Cambridge University Press, London, 1974, p. 62.
- W.T. Delong:Welding Journal, 1974, vol. 54, p. 273s.
- S.A. David and J. M. Vitek: unpublished research, Oak Ridge National Laboratory, Oak Ridge, TN, 1981.
- T. Z. Kattamis and M. C. Flemings:Trans. TMS-AIME, 1966, vol. 236, p. 1523.
- K. P. Young and D. H. Kirkwood:Metall. Trans. A, 1975, vol. 6A, p. 197.
- M. C. Flemmings:Solidification Processing, McGraw Hill, New York, NY, 1974, p. 148.
- The effect of quenching on the solidification structure and transformation behavior of stainless steel welds
Metallurgical Transactions A
Volume 13, Issue 7 , pp 1141-1152
- Cover Date
- Print ISSN
- Online ISSN
- Additional Links
- Industry Sectors