Formation of Zones of Plastic Strain in Quenched and Tempered Steel 09G2S During Dynamic Tests

详细

The shape and size parameters of zones of plastic strain under fracture surfaces of quenched and tempered steel 09G2S are estimated. The shapes of the zones of plastic strain (PSZ) are studied after all the tested modes of heat treatment. Maps of distribution of the microhardness are plotted for complete PSZ of specimens standardized by GOST 9454–78 with relative crack length 0.55 and for specially prepared specimens with additional side V-notches with relative crack length 0.5.