Microwave heating with a sintered Fe-Al powder mixtures combine with stud welding

In this study, the compatibility of stud welding for the joining of Fe and Al mixtures, containing Fe and Al powders at variour ratios, that were compressed at high compaction pressure and sintered by microwave radiation by different discharge voltage has been investigated. The amount of Al in Fe Al powder mixtures drastically affects the efficiency and properties of the joints.Flash welding or Stud welding is capacitor discharge welding by which high voltage is passed through a metal screw and heat is generated due to electrical resistance. This method is very commonly applied in industry and can used to join different metals and alloys. It is fast and requires low energy heat input and therefore the extent of damage is kept to a minimum. This ensures good bonding by limiting the heat affected zone depth and prevents the formation of critical transition region in which various segregation occurs. This method produces good results in construction industry where high strength requirements are stringent and in addition to this it is also successfully employed on very thin plates and specimens.The use of powder metallurgy is of extreme importance for the industry since it is widely used for manufacturing of countless parts ranging from automotive and machine parts as well as toys etc? High compaction pressure and sintering are the main process steps in this method and sintering can be done using conventional methods as well as unconventional methods such as microwave sintering which gives better results compared to conventional furnaces.Iron aluminides are a group of advanced materials which is promising for applications such as very good high temperature corrosion performance and good high temperature creep properties. For these, Iron Aluminides are being investigated by many researchers and its area of use is attempted to be enlarged.