Electron-microscopic study of the structure of the surface layer in high-nitrogen 05Kh22AG15N8M2F steel after face turning
- Авторлар: Blinov E.1
-
Мекемелер:
- Baikov Institute of Metallurgy and Materials Science
- Шығарылым: Том 2016, № 1 (2016)
- Беттер: 52-57
- Бөлім: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/170326
- DOI: https://doi.org/10.1134/S0036029516010055
- ID: 170326
Дәйексөз келтіру
Аннотация
The structure of the surface layer in high-nitrogen 05Kh22AG15N8M2F steel workpieces subjected to face turning is studied by electron microscopy. It is found that improved machinability by VK8 alloy cutting tools is achieved at a cutting depth of 0.25 mm and that the cutting-tool life decreases sharply when the cutting depth increases to 1 mm. A nanocrystalline structure with nanocrystal sizes from several to several tens of nanometers forms in the surface layer upon face turning in the as-cast, hot-rolled, and thermally deformed states. The structure of the surface layer is characterized by a high dislocation density and large austenite fragments with broad subgrains and deformation twins.
Авторлар туралы
E. Blinov
Baikov Institute of Metallurgy and Materials Science
Хат алмасуға жауапты Автор.
Email: bev001@yandex.ru
Ресей, Leninskii pr. 49, Moscow, 119991