Effect of the welding mode and filler content on the structure of microalloyed Nb/Ti steel weldments
- 97 Downloads
We describe the changes in the proportions of some microconstituents in the structure of the weld metal and the heat-affected zone and analyze the mechanical and technological properties of the welded joints of high-strength microalloyed Nb/Ti steel made by the E-process and MAG-process of welding with modification of the composition of the filler and welding parameters. The influence of different structures of the filler material and welding parameters on the microstructures of the HAZ and weld metal is studied with an aim to explain the changes in the mechanical and technological properties of the welded joints of microalloyed Nb/Ti steel.
Keywordsmicroalloyed steels weld metal heat-affected zone thermomechanical processing microstructure
Unable to display preview. Download preview PDF.
- 3.N. Bajić and V. Šijački-Žeravčić, “The analysis of change of structural and mechanical properties of welded joints of microalloyed NB/V steel grade by changing the composition of filler material,” in: Internat. Conf. on Welding, 2003, Belgrade (2003).Google Scholar
- 4.N. Bajić, Analysis of the Influence of the Filler Material and Welding Parameters on the Properties of Welded Joints of New Generation of High-Strength Microalloyed Steels [in Serbian], Ph.D. Dissertation, Faculty of Mechanical Engineering, Belgrade (2004).Google Scholar
- 5.Z. Zhang and R. A. Farrar, An Atlas of Continuous Cooling Transformation (CCT) Diagrams Applicable to Low-Carbon Low-Alloy Weld Metals, Institute of Materials, London (1995).Google Scholar