Which technique is useful to do the welding of Al-Al2O3 composite? Will the reinforcement (Al2O3) melt during welding? If so, what will happen to the reinforcement (Al2O3) during the melting and solidification? Is there any chance for grain refinement due to the heterogeneous nucleation by Al2O3?
Please provide me some publications related to this topic...
I believe the most appropriate technique will be friction stir welding all the more that one of the composite structure winning method if FSW too. Since no melting occurs in the process, the grain size refining is common with this method.
Dr. Sergei Tarasov,
Thank You for your answer. Can We use any fusion welding technique for the same? If so, grain refinement will be there?
Fusion techniques are standard ones for some aluminum alloys mostly for wrought alloys which are not too sensitive to overheating in HAZ. However, grains will not be so small as after FSW snce they grow from the liquid phase, including liqation, etc. Also it may happen that all your alumina particles will float up and segregate in the upper part.
Ultrasonics welding may be useful too for your composites.
Dr. Sergei Tarasov,
Is it worth trying TIG welding on the composite processed by powder metallurgy route (after sintering), atleast for academic interests?
Can we incorporate any vibration techniques for specimens to avoid alumina to float on top during TIG welding?
Thanking You
friction welding. next apart from your engineering study strength , wear....hardness , you can go for corrosion resistance study also. for this aspect I will help you
Prof S Rajendran
RVS School of Engg and Tech, Dindigul, India