1 Обозначение марок сталей в стандартах разных стран мира Manganese sulfide inclusions in wrought AISI1214 free-machining carbon steel (longitudinal plane), - презентация

1 1 Обозначение марок сталей в стандартах разных стран мира Manganese sulfide inclusions in wrought AISI1214 free-machining carbon steel (longitudinal plane), x 200 Задание 1. Внимательно изучите предлагаемую информацию о зарубежных сталях. Для каждой марки стали определите примерный химический состав и подберите российский аналог.

2 2 Ferrite (light) and pearlite (dark) bands in 1020 steel hot-rolled plate. Light micrograph, longitudinal section, nital etch.

3 3 Microstructure at the surface and core of carburized AISI 1020 carbon steel slowly cooled from carburizing temperature, x 200

4 4 Comparison of austenitic grain size in (a) coarse-grained SAE1015 steel and (b) fine-grained SAE4615 after carburizing. Light micrograph, original magnification at 1000x

5 5 Central and near-surface fracture areas of martensitic 41XX steel tensile specimens tempered at C: a – 4130; b – 4140; c – 4150.

6 6 Microstructure of annealed type 316L austenitic stainless steel: a, b – various etching reagents.