Abstract
In this paper, heat affected zone characteristics of DP1000 steels was investigated during diode laser beam welding (LBW). A butt-welded joint of specimen in dimension of 300 x 150 mm each (according to EN15614-11:2002) with 1 mm thickness is used for the experimental purpose. The welding thermal cycle and the cooling circumstances in the HAZ was determined by real experiment and the physical simulation. A Gleeble 3500 thermo-physical simulator was used to physically simulate the coarse grain heat affected zone (CGHAZ) on the base material specimens by the utilization of the thermal cycles for t8/5 =2.5 s. The results of the physical simulation were validated by real welding experiments. The properties of the simulated and the real HAZ was examined by optical microscopic, scanning electron microscope and hardness tests.
Publisher
Trans Tech Publications, Ltd.
Reference21 articles.
1. K. Zsuzsanna, N. Gyula and L. János, COD assessment of S960M grade steel at different temperatures, 72nd IIW Annual Assembly and International Conference: Proceedings of International Conference (2019) Paper: IIW-DOC X-1958-19.
2. M. Eshraghi, M.A. Tschopp, M.A. Zaeem and S. D. Felicelli, A Parametric Study of Resistance Spot Welding of a Dual-Phase Steel Using Finite Element Analysis, The 8th Pacific Rim International Congress on Advanced Materials and Processing, (TMS) The Minerals, Metals & Materials Society), (2013) 3073-3080.
3. A. Wrozyna, M. Pernach, R. Kuziak, and M. Pietrzyk, Experimental and Numerical Simulations of Phase Transformations Occurring During Continuous Annealing of DP Steel Strips, Journal of Materials Engineering and Performance, 25(4) (2016) 1481–1491,.
4. Ádám, Dobosy and János Lukács, Welding Properties and Fatigue Resistance of S690QL High Strength Steels, Materials Science Forum 812 pp.29-34. 6 p. (2015).
5. G. C. C. Correard, G. P. Miranda and M. S. F. Lima, Development of laser beam welding of advanced high-strength steels, Int. J. Adv. Manuf. Technol. 83 (2016) 1967–(1977).