The hardness measurements were taken across the fusion zone. The mechanical and corrosion resistant properties of cladded components depend on the clad bead geometries, which in turn Microstructure investigation demonstrated that vanadium nitride precipitation was prevented to grow initial austenite and was caused the formation of finer ferrite in the microstructure of weld layers and consequently, the improvement of properties. F��v�%��9�V+Iu��j�ܹ{��ٳwv�6tttpt`�s���{5������Ә����0�1�Y��`����@��? The numerous advantages SAW offers for productivity and weld quality — especially when paired with cored wire specifically formulated for the process — make the investment one to consider for many heavy industrial applications. Tujuannya untuk mengetahui apakah sambungan pipa ini memenuhi persyaratan dari peraturan DNVGL ditinjau dari aspek kekuatan tarik, impak dan ketangguhan. The results of the PhD thesis shed light on the feasibility of AH-40 FCA steel welding with metal cored wire. PRA (Prediction of the Reinforcement Area) calculates the theoretical reinforcement area in a Stringer bead (for this reason it is designated as PRA-S). This report describes recent trends that have been used in material science and computational methods to mitigate the development of micro-cracks and crack propagation in polymer composites. The increased parameters will affected to the grain size. 'flux cored arc welding’ means a welding process that uses composite tubular filler metal electrodes consisting of a metal sheath and a core of various powdered materials, producing an extensive slag cover on the face of a weld bead. 1877-7058 © 2012 Published by Elsevier Ltd. International Symposium on Robotics and Intel, Flux Core Arc Welding (FCAW) is an arc welding process that us, using robotic welding with the variables in welding current, speed, and hardness measurement. Globular down hand had higher mechanical properties than spray down hand. There are new kinds of welding processes and goods, some of these methods used are shielded metal arc welding (SMAW) [56], gas tungsten arc welding (GTAW) [57], flux-cored arc welding (FCAW), Gas Metal Arc Welding (GMAW) process is leading in the development in arc welding process which is higher productivity and good in quality. The effect of welding current to the hardn, Figure 5 below shown that at the certain parameters the hardne, Heat Affected Zone (HAZ). The correlation between the heat input and fillet weld bead can be displayed in a unique trend-line graph. The microstructural characterization was performed with optical microscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and microhardness testing with the Vickers method. The shape of the fusion zone depends upon a number of parameters such as gas flow rate, voltage, travel speed and wire feed rate. H��W]o�F��}��d����}v�(q��Ȋt/xw�G�.��;���� �N/���VMoQ]Uݾ�#�M�bjX�It��":�����4��w4�H��>�@ �q��h��F�����:}����?�m��g�A��g�rc:5������m����@��u��6guD����T�����P�(%)���� The hardness wi. The experiments led to the quantification of the toughness parameters comparatively for the weld metal and the base metal by testing appropriate notched specimens extracted from both regions. The micro Vickers tests were then applied gradually at the cross-sectional surface with a distance of 0, 5, 10 and 15 mm from weld centreline using the load of 300 g for indentation time of 15 s. A series of microstructural observations were subsequently directed on cross-sectional weld joint regions including base metal, heat-affected zone (HAZ) and weld metal to investigate the microstructural transformation.

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