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With the growing need in technologically advanced industries for high-strength materials and advances in the field of material science, there has been an increase in the availability and use of difficult-to-machine materials. Electrical Discharge Machining (EDM) is an extensively used method to machine electrically conductive materials. EDM is a thermo-electric method in which material removal takes place through the process of controlled repetitive spark generation. The machines also specialize in cutting complex contours or flimsy geometries that would be difficult to be produced using...

This book deals with the hydrogen embrittlement phenomena in Advance High Strength steel material and prevention with the help of various surface coatings.Hydrogen embrittlement phenomena in AHSS DP980 steel were investigated and found that due to the effect of hydrogen, mechanical properties get reduced. Various surface coatings were performed to reduce the hydrogen permeation in DP980 steel and found Ni-cr and Graphene anti-corrosive spray coatings were effective in the hydrogen atmosphere and reduce the hydrogen permeation rate in the parent material. Scanning electron microscopy...