dynamic behavior of laserwelded CR180IF and DP600 steels. 2. Materials and Methods The investigated materials are interstitial free CR180IF and dualphase DP600 steels in the coldrolled and annealed condition. The thickness of both steel sheets is 1.9 mm. B. Forming Limits of Weld Metal in Aluminum Alloys and DP600 TWBs (1.5 mm to 1 mm) Laser-welded DP600 to DP600 TWBs (1.5 mm to 1 mm) were also tested. The total width of the laser-welded zone is small, less than 0.125 inch (3.2 mm). Sixty samples were tested, 30 samples with a transverse weld orientation and 30 samples with a longitudinal weld orientation. No failures in the
phase boundaries, while the magnification was set as va-riable, according to the observed microstructure. For fer-rite quantification, the micrographs were edited using an image-analysis software by applying proper filters to im-prove phase contrasts and minimize grayscale threshold errors (the filtering procedure was set-up for the specific case). Effects of different welding technologies on metallurgical The performance evaluation of welded automotive components made in DP steels, with respect to durability or crashworthiness, involves the quantification of the properties change of the welded joint. This work is aimed at evaluating the effects of three different welding technologies (GTAW, PAW, EBW) on DP600 steel properties. In M.J.M. Hermans Scientific.NetJournal of Biomimetics, Biomaterials and Biomedical Engineering Materials Science. Defect and Diffusion Forum
The present work describes the influence of the parameters employed in the gas tungsten arc welding process (GTAW) when nickel powder is used as a filler metal in 2304/2507 duplex stainless-steel dissimilar joints. Multi-objective optimization was applied in order to maintain the austenite/ferrite percentage in the welded zone. Mechanical Properties and Retained Austenite Through the comparison of microstructure for polygonal ferrite (PF) matrix transformation induced plasticity (TRIP) seamless steel tube at different positions before and after tensile rupture, the transformation behavior of retained austenite (RA) was studied. The results showed that there were no yield points in tensile process and the splendid elongation and tensile strength were contributed Microstructure, Tensile Properties and Work Hardening Feb 13, 2017 · In the present study, microstructure, tensile properties and work hardening behavior of a DP700 steel after gas tungsten arc welding were investigated. Formation of bainite in the fusion zone resulted in a hardness increase compared to that for the base metal (BM), whereas tempering of the pre-existing martensite in the subcritical heat-affected zone (HAZ) led to softening.
The volume fraction of martensite is approximately 20% for DP600 steel [19, 1]. The growth parameter from ferrite, pearlite, bainite or martensite to austenite has been set to 0.05s in order to obtain a good agreement to the results of the phase field predictions for welding of DP600 reported by [24, 19]. Several Publications - Ali RamazaniPeer Reviewed Proceeding Publications . A. Ramazani, U. Prahl, Modelling the process chain of cold rolled dual phase steel for automotive application, Proceedings of 2nd World Congress on Integrated Computational Materials Engineering (ICME 2013), 2013, pp. 97-102.; U. Prahl, H. Quade, A. Ramazani, W. Bleck, Influence of microstructural banding on flow curve and failure in TRIP steels Transmission Electron Microscopy Studies of Plasma Arc Oct 11, 2019 · Microstructural characteristics of keyhole plasma arc-welded DP600 steel were analyzed using optical microscopy, scanning electron microscopy, and analytical transmission electron microscopy. The fusion zone (FZ) was observed to consist of allotriomorphic, Widmanstätten, and acicular ferrite along with bainite and martensite leading to enhancement in the hardness compared with the base
Phases quantification in DP600 steel welded by GTAW process using SEM and atomic force microscopy By G.Y. Pérez Medina, E. Hurtado Delgado, A. F. Miranda Pérez and H. Lopez Ferreira Cite