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The effects of flash allowance and upset allowance on microstructures and mechanical properties of flash butt welded RS590CL steel joints

Published online by Cambridge University Press:  14 November 2016

C.Y. Xi
Affiliation:
Key Laboratory of Automobile Materials of Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun 130022, China
D.Q. Sun*
Affiliation:
Key Laboratory of Automobile Materials of Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun 130022, China
Z.Z. Xuan
Affiliation:
Key Laboratory of Automobile Materials of Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun 130022, China
J.G. Wang
Affiliation:
Shandong Xingmin Wheel Co., Ltd., Longkou 265700, China
G.S. Song
Affiliation:
Shandong Xingmin Wheel Co., Ltd., Longkou 265700, China
*
a) Address all correspondence to this author. e-mail: psdq@126.com
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Abstract

The flash allowance and upset allowance have significant effects on characteristics of flash butt welded RS590CL steel joints. The overheated zone (OZ) widths increased with flash allowance (δf) increase, and decreased as the upset allowance (δu) increased. The coarsened upper bainite was formed in interface zone (IZ) and OZ as δf increased. With increasing δu, the large plastic deformation occurred and the interface formability improved. The hardness in IZ was a little lower than that in its vicinity OZ due to some ferrite existence and dislocation amount decreased in IZ. The tensile strengths of flash butt welding (FBW) joints were in good match with base metal and the ductilities were lower. The maximum bending crack length was 0.68 mm which indicated that the bending properties of FBW joints were good. Under this experiment, relatively large δf (10–12 mm) and δu (5.5–6.5 mm) were recommended for the benefit of high quality FBW joints.

Type
Articles
Copyright
Copyright © Materials Research Society 2016 

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References

REFERENCES

Kuziak, R., Kawalla, R., and Waengler, S.: Advanced high strength steels for automotive industry. Arch. Civ. Mech. Eng. 8, 103117 (2008).Google Scholar
Kastensson, Å.: Developing lightweight concepts in the automotive industry: Taking on the environmental challenge with the SåNätt project. J. Clean. Prod. 66, 337346 (2014).CrossRefGoogle Scholar
Keeler, S. and Kimchi, M.: Advanced High-strength Steels Application Guidelines V5 (World Auto Steel, Brussels, 2015).Google Scholar
Matlock, D.K., Speer, J.G., Moor, E.D., and Gibbs, P.J.: Recent developments in advanced high strength sheet steels for automotive applications: An overview. Eng. Sci. Technol. 15, 112 (2012).Google Scholar
Yin, N., Meng, X.T., Li, F., Cui, Y., and Zhou, Z.W.: Cracking analysis of automobile rim flash butt welding. Adv. Mater. Res. 1004, 11251128 (2014).Google Scholar
Kang, Y.L., Chen, G.J., Zhu, G.M., and Song, R.B.: Forming technology and application of new generation advanced high strength steel for automobile. Iron & Steel 45, 16 (2010).Google Scholar
Li, Y., Lin, Z., Jiang, A., and Chen, G.: Use of high strength steel sheet for lightweight and crashworthy car body. Mater. Des. 24, 177182 (2003).Google Scholar
Baptista, C.A.R.P., Versuto, B.C.B., de Oliveira, F.P., Torres, M.A.S., and Costa, D.H.S.: Mechanical and microstructural characterization of flash–welded joints in HSLA steels. Proc. of COBEM 2011, 2428 (2011).Google Scholar
Ichiyama, Y. and Saito, T.: Factors affecting flash weldability in high strength steel—A study on toughness improvement of flash welded joints in high strength steel. Weld. Int. 18, 436443 (2004).Google Scholar
Arabaci, U., Çetînkaya, C., and Akay, A.: An investigation of effects of upsetting current time and normalization heat treatment on mechanical properties of X40CrMoV5 1 and C1030 steels joined by flash butt welding. Mater. Des. 28, 23512360 (2007).Google Scholar
Wang, W., Shi, Y., Lei, Y., and Tian, Z.: FEM simulation on microstructure of DC flash butt welding for an ultra-fine grain steel. J. Mater. Process. Technol. 161, 497503 (2005).Google Scholar
Zhang, F., Lv, B., Hu, B., and Li, Y.: Flash butt welding of high manganese steel crossing and carbon steel rail. 454, 288292 (2007).Google Scholar
Min, K.B. and Kang, S.S.: A study on resistance welding in steel sheets for tailor welded blank: Evaluation of flash weldability and formability (2nd report). Mater. Sci. Eng., A 103, 218224 (2000).Google Scholar
Ziemian, C.W., Sharma, M.M., and Whaley, D.E.: Effects of flashing and upset sequences on microstructure, hardness, and tensile properties of welded structural steel joints. Mater. Des. 33, 175184 (2012).Google Scholar
Feng, Q., Li, T., Ding, Z., and Jin, J.: Research situation and development trends of flash butt welding. Mater. Sci. Technol. 1, 014 (2008).Google Scholar
Kim, D.C., So, W.J., and Kang, M.J.: Effect of flash butt welding parameters on weld quality of mooring chain. Arch. Mater. Sci. Eng. 38, 112117 (2009).Google Scholar
Connor, L.P.: Welding Handbook. Vol. I: Welding Technology (Macmillan Education, London, 1987).Google Scholar
Callister, W.D. Jr.: Fundamentals of Materials Science and Engineering, 5th ed. (John Wiley & Sons, Hoboken, 2001).Google Scholar
Xi, C.Y., Sun, D.Q., Xuan, Z.Z., Wang, J.G., and Song, G.S.: Microstructures and mechanical properties of flash butt welded high strength steel joints. Mater. Des. 96, 506514 (2016).Google Scholar
Callister, W.D. and Rethwisch, D.G.: Materials Science and Engineering: An Introduction (John Wiley & Sons, Hoboken, 2007).Google Scholar
Easterling, K.: Introduction to the Physical Metallurgy of Welding (Elsevier, Zurich, 2013).Google Scholar