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Microstructure and properties of novel high strength steel weld metals
Języki publikacji
Abstrakty
Dla stopiwa stali o wysokiej wytrzymałości, zawierającego 7 % niklu, zbadano zależność między zawartością pierwiastków stopowych a mikrostrukturą i własnościami mechanicznymi. W oparciu o modelowanie za pomocą sieci neuronowych wykonano elektrodami otulonymi próbne spoiny o różnej zawartości manganu i węgla. Zbadano wpływ zawartości tych pierwiastków na własności wytrzymałościowe i udarność. W celu zbadania mikrostruktur zastosowano mikroskopię elektronową o dużej rozdzielczości. W środkowym obszarze dendrytów stwierdzono obecność różnego rodzaju bainitu. W obszarach międzydendrytycznych stopiw o dużej zawartości manganu występował przeważnie martenzyt. Opracowano układ równowagi określający rodzaj mikrostruktury w zależności od zawartości manganu i niklu.
The relationship between alloying content, microstructure and mechanical properties has been studied for high strength steel weld metals with 7 wt. % nickel. Following neural network predictions, shielded metal arc welding was used to produce experimental welds with different manganese and carbon content. The influence of these elements on the strength and notch toughness was examined. To characterise the microstructure high resolution microscopy was used. Different kinds of bainite were found in the core regions. In interdendritic regions mainly martensite was formed in high manganese weld metals. A constitutional diagram was constructed that summarises the microstructure as a function of manganese and nickel content.
Czasopismo
Rocznik
Tom
Strony
50--50
Opis fizyczny
53-58, 61-63, Bibliogr. 37 poz., rys., tab.
Twórcy
autor
- Departament of Experimental Physics, Chalmers University of Technology, Gothenburg, Szwecja
Bibliografia
- 1. Svensson L. -E.: Consumables for welding high strength steels. Svetsaren, 1999, nr 1-2.
- 2. Widgery D. J., Karlsson L., Murugananth M., Keehan E.: Approaches to the development of high strength weld metals. Proceedings 2nd Int. Symposium on High Strength Steel, Norwegia 2002.
- 3. Deloach J. F.: Proceedings, International Conference on Welding Technology, Material and Fracture, Geesthacht, Niemcy, Gournay-sur-Marne, Francja; IITT International; 1990.
- 4. Oldland P. R., Ramsay C. W., Matlock D. K., Olson D. H.: Significant Features of High-Strength Steel Weld Metal Microstructures. Welding Journal, 1989, n4, str. 158s.
- 5. Vassilaros M. G., Czyryca E. J.: Proceedings, Advances in Low-Carbon High Strength Ferrous Alloys (LCFA-92), Jamshedpur (India), 25-28 marca, 1992: Key Engineering Materials (Szwajcaria).
- 6. Fleming D. B., Bracarense A. Q., Liu S., Olson D. L.: Toward Developing a SMA Welding Electrode for HSLA-100 Grade Steel. Welding Journal, 1996, nr 6, str. 171s-183s.
- 7. McRobie D. E., Knott J. F.: Material Science and Technology, 1, maj 1985, str. 357-365.
- 8. Svensson L.-E., Gretoft В.: Welding Journal, 1990, nr 12, str. 454.
- 9. Lau T. W., Sadowsky M. M., North Т. Н., Weaterly G. C.: The Metallurgical Society / AIME, 1987, str. 349.
- 10. Lord M.: Design and modelling of ultra - High Strength Steel Weld Deposits, in Materials Science and Metallurgy, Ph. D. thesis, University of Cambridge, U. K., 1999.
- 11. Abson D. J., PargeterR. J.: Inter. Metal Rev., 31, 1986, str. 141-194.
- 12. Grong 0., Matlock D. K.: Inter. Metal Rev., 31, 1986, str. 27-48.
- 13. FarrarR. A., Harrison P. L., Mater J.: Sci., 22, 1987, str. 239-244.
- 14. Taylor D. S., Evans G. M.: Development of MMA Electrodes for offshore fabrication. Metal Constr. 1983, nr 7, str. 438-443.
- 15. Evans G. M.: Joining Sciences, 1, 1991, str. 2-13.
- 16. Harrison P. L., FarrarR. A.: Microstructural Development and Toughness of C-Mn and C-Mn-Ni Weld Metals. Metal Constr, 1987, nr 7, str. 392R-399R i 447R-450R.
- 17. Wang W., Liu S.: Alloying and Microstructural Management in Developing SMAW Electrodes for HSLA-1200 Steel, Welding Journal, 2002, nr 7, str. 132.
- 18. Liao J., Kametani H., Okada H., Ikeuchi K.: Toughness of weld metals of 950 MPa High Strength Steel, Proceedings of the 7th Int. Symposium., str. 809-814, Japan Welding Society, 2001.
- 19. Kang Y., Kim H. J., Hwang S. K.: ISIJ International (Japonia), 40, str. 1237, grudzień 2000.
- 20. Fairchild D. P., Macia M. L., Bangaru N. V., Koo J. Y.: Proc. 13th Int. Offshore and Polar Eng. Conf., Honolulu, Hawaii, USA, 25-30 maja 2003 г., str. 26.
- 21. Lord M., Jennings G.: Effect of interpass temperature on properties of high strength weld metals, Svetsaren, t. 54, nr 1-2, str. 53 - 58, 1999
- 22. Keehan E., Karlsson L., Andren H.-O., Svensson L.-E.: New developments with C-Mn-Ni high strength steel weld metals - Part A. Microstructure, (Keehan E.: Effect of microstructure on mechanical properties of high strength steel weld metals, Ph. D. thesis, Paper 7, Chalmers University of Technology, 2004), In Manuscript
- 23. Mackay D. J. С: Neural Computation, str. 448, 1992.
- 24. Mackay D. J. С: Neural Computation, str. 415, 1992.
- 25. Bhadeshia H. K. D. H.: ISIJ International (Japonia), 39, str. 966-979, październik 1999.
- 26. Keehan E.: Effect of microstructure on mechanical properties of high strength steel weld metals, Ph. D. thesis, Chalmers University of Technology, 2004.
- 27. Keehan E., Karlsson L., Andren H.-O., Svensson L.-E.: New developments with C-Mn-Ni high strength steel weld metals - Part B. Mechanical Properties, (Keehan E.: Effect of microstructure on mechanical properties of high strength steel weld metals, Ph. D. thesis, Paper 8, Chalmers University of Technology, 2004), In Manuscript.
- 28. Keehan E., Bhadeshia H. K. D. H., Andren H.-O., Karlsson L., Svensson L.-E.: Microstructure characterisation of a high strength steel weld metal containing the novel constituent coalesced bainite, (Keehan E.: Effect of microstructure on mechanical properties of high strength steel weld metals, Ph. D. thesis, Paper 3, Chalmers University of Technology, 2004), In manuscript.
- 29. Keehan E., Karlsson L., Andren H.-O.: Influence of C, Mn and Ni contents on microstructure and properties of strong steel weld metals, Part I. Effect of nickel content, (Keehan E.: Effect of microstructure on mechanical properties of high strength steel weld metals, Ph. D. thesis, Paper 4, Chalmers University of Technology, 2004), accepted for publication in The Science and Technology of Welding and Joining.
- 30. Keehan E., Karlsson L., Andren H.-O., Bhadeshia H. K. D. H.: Influence of C, Mn and Ni contents on microstructure and properties of strong steel weld metals, Part II, Impact toughness gain from manganese reductions, (Keehan E.: Effect of microstructure on mechanical properties of high strength steel weld metals, Ph. D. thesis, Paper 5, Chalmers University of Technology, 2004), accepted for publication in The Science and Technology of Welding and Joining.
- 31. Keehan E., Karlsson L., Andren H.-O., Bhadeshia H. K. D. H.: Influence of C, Mn and Ni contents on microstructure and properties of strong steel weld metals, Part III. Increased strength from carbon additions, (E. Keehan, Effect of microstructure on mechanical properties of high strength steel weld metals, Ph. D. thesis, Paper 6, Chalmers University of Technology, 2004), accepted for publication in The Science and Technology of Welding and Joining.
- 32. SSAB Oxelösund, WeldCalc, Version 1.0.0, 98 -99R.W.K.
- 33. Sundman В., Jansson В., Andersson J.-O.: Calphad, t. 9, nr. 2, str. 153-190, 1985.
- 34. Honeycombe R. W. K., Bhadeshia H. K. D. K.: Steel Microstructure and Properties, 2nd Ed., Edward Arnold, London, str. 103, 1995.
- 35. Honeycombe R. W. K, Bhadeshia H. K. D. K.: Steel Microstructure and Properties, 2nd Ed., Edward Arnold, London, str. 133, 1995
- 36. Takahashi M., Bhadeshia H. K. D. H.: Materials Science and Technology, 6, str. 592 - 603, 1990.
- 37. Zhang Z, Farrar R. A.: Influence of Mn and Ni on the microstructure and toughness of C-Mn-Ni weld metals. Welding Journal, 1997, nr 5, str. S183-S196.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BOS4-0018-0006