Sub-Microstructure of Surface and Subsurface Layers after Electrical Discharge Machining Structural Materials in Water

The material removal mechanism, submicrostructure of surface and subsurface layers, nanotransformations occurred in layers during electrical discharge machining two structural materials such as anti-corrosion X10CrNiTi18-10 (12kH18N10T) steel austenite class 2024 (D16) duralumin a deionized water medium were researched. was conducted using brass tool 0.25 mm diameter. measured gap is 45–60 µm for 105–120 duralumin. Surface roughness parameters are arithmetic mean deviation (Ra) 4.61 µm, 10-point height (Rz) 28.73 maximum peak-to-valley (Rtm) 29.50 spacing between peaks (Sm) 18.0 steel; Ra 5.41 Rz 35.29 Rtm 43.17 Sm 30.0 recast layer with adsorbed components the wire electrode carbides observed up to depth 4–6 2.5–4 Levenberg–Marquardt algorithm used mathematically interpolate dependence interelectrode on resistance material. microstructures provide grounding nature wear nanomodification obtained surfaces.