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Effect of the Heat Input in the Mechanical and Metallurgical Properties of Welds on AHSS Transformed Induced Plasticity Steel Joined with GMAW Processes in the Automotive Industry

Published online by Cambridge University Press:  24 February 2014

Victor Lopez ,
Arturo Reyes  and
Patricia Zambrano
Victor Lopez*
Affiliation:
Corporación Mexicana de Investigación en Materiales S.A de C.V., calle ciencia y tecnología 790 Saltillo, México.
Arturo Reyes
Affiliation:
Corporación Mexicana de Investigación en Materiales S.A de C.V., calle ciencia y tecnología 790 Saltillo, México.
Patricia Zambrano
Affiliation:
Universidad Autónoma de Nuevo Leon, Pedro de Alba s/n San Nicolas N.L, México.
*
*Email: vlopez@comimsa.com
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Abstract

The effect of the heat input on the mechanical and metallurgical properties of the welds has been investigated in the heat affected zone (HAZ) of welds joined with gas metal arc welding (GMAW), using normal production welding parameters. The thermal effect in the HAZ of the welds is important for the optimization of the welding parameters used when weld transformed induced plasticity (TRIP) steels, because this will have a great influence in the mechanical and metallurgical properties of the weld. In this work 3 samples was welded a high, average and low heat input, with the variation of welding parameters to obtain different thermal affectation to investigate the variations in different parts of weld joint: weld, HAZ and base metal, due the heat applied for the welding process used. Mechanical properties were evaluated by tension test, microhardness and fatigue testing and metallurgical evaluation with optical metallograpy, scanning electron microscopy (SEM), fractograpy and X-Ray diffraction (XRD).The results obtained shows that the mechanical properties of the tension test decrease when the heat input increase and the microhardness exhibit a softening zone in the HAZ with lower hardness and the fatigue life were similar for all heat inputs for the high stress levels, but only in low stress there is a difference. For metallurgical properties the metallographic evaluation shows ferrite, bainite - martensite and retained austenite, and the fractography analysis exhibit a ductile fracture in all cases and the content in volume fraction of retained austenite increases in the HAZ of welds when increasing heat input in to the base metal due the thermal effect.

Keywords

joiningmicrostructurefatigue

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References

REFERENCES

Kapustka, N., Conrardy, C., Babu, S., Albright, C., American Welding Society and the Welding Research Council, 135–148 (2008).Google Scholar
Mei, Z., Li, L., Fu, R., Zhang, J., Wan, Z., Journal of Iron and Steel Research International, 15(5), 61–65 (2008).Google Scholar
LI, Z., Hui-sheng, L., Shi-rong, F., Proceedings of Sine Swedish Structural Materials Symposium (2007).Google Scholar
Militzer, M., A synchrotron look at steel. Science 298, 975–976, (2002).CrossRefGoogle Scholar
Jacques, P., Curr. Opin. Solid State Mater. Sci. 8, 259–265, (2004).CrossRefGoogle Scholar
Nagasaka, A., “Press formability of YAG laser welded TRIP steel sheets”, Acta Metall. Sin. 15, 21–25, (2002).Google Scholar
Han, T.K., Park, S.S., Kim, , Kang, K.H., Woo, C.Y, Lee, I.S., ISIJ Inter. 45, 60–65, (2005).CrossRefGoogle Scholar
Song, S., Sugimoto, K., Kandaka, S., Futamura, A., Kobayashi, M., Masuda, S., Mater Sci. Res. Int. 9(3) 223–229, (2003).Google Scholar
Sugimoto, K., Song, S., Inoue, K., Kobayashi, M., Masuda, S., Japan Soc Mater Sci 657–64, (2001).CrossRefGoogle Scholar
Yasuki, S., Sugimoto, K., Kobayashi, M., Hashimoto, S., “Low cycle fatigue- hardening of TRIP-aided dual-phase steels”. Nippon Kinzoku Gakkaishi 54(12), 350–1357, (1990).Google Scholar
Itami, A., Takahashi, M., Ushioda, K., Proceedings of the International Symposium on Low-Carbon Steels of the 90’, Pittsburgh, (1994), 245.Google Scholar
Kaputska, N., Conrardy, C., Babu, S., Albrigth, C., Welding Journal, American Welding Society and the Welding Research Council, 87, 135–148; (2008).Google Scholar
Zhaoa, L., Wibowoa, M., Hermansb, M., van Bohemenb, S., Sietsmab, J., Journal of Materials Processing Technology, 5286–5291, (2009).CrossRefGoogle Scholar
Robertson, L.T., Hilditch, T.B., Hodgson, P., International Journal of Fatigue 30, 587–594, (2008).CrossRefGoogle Scholar
Chen, J., Sand, K., Xia, M.S., Ophus, C., Mohjammadi, R., Kuntz, M.L., Zhou, Y., The Minerals, Metals & Materials Society, 39, 593–603, (2008)Google Scholar
Papaefthymiou, S., Prahl, U., Bleck, V., Zwaag, S., Int. J. Mater. 97, 1723–1731, (2006).CrossRefGoogle Scholar
Cheng, X., Petrov, R., Zhao, L., Janssen, M., Eng. Fract. Mech. 75, 739–749, (2008).CrossRefGoogle Scholar