Microstructures of high-speed deformation in 0.20% C carbon steel induced by high-current pulsed electron beams irradiation

A study was conducted to investigate deformation structure of low-carbon steel under high-current pulsed electron beam (HCPEB) irradiation, as steels were most commonly used engineering materials. The investigations focused on the identification of deformation microstructural features induced by HCPEB irradiation. The specimens were bombarded with 10 pulses and microstructural examinations were performed with an optical microscope and a transmission electron microscope (TEM) of type H-800. The foils used to TEM observations were obtained by preparing one-sided mechanically pre-thinned, dimpled, and electrolytical thinning of the thin plates until the electron transparency occurred. Microstructure on the irradiated surface were observed directly and the without the need for the chemical etching process for the treated samples.