00835naa#a2200205#i#450# EN\\bibl\48161 20241218223855.3 2223-4608 20220128b2022####ek#y0engy0150####ca RU Hardening of a quick-speed steel tool through nitration process with nitrogen controlled potential Journal article Bryansk Bryansk State Technical University 2022 7 с. Journal article local Общее машиностроение. Ядерная техника. Электротехника. Технология машиностроения в целом. 621 Petrova Larisa Georgievna Alexandrov Vladimir Alekseevich Vdovin Viktor Maximovich Demin Pyotr Evgenievich bstu.editorum.ru