- Tytuł:
- Effect of the Austempering Process on the Microstructure and Mechanical Properties of 27MnCrB5-2 Steel
- Autorzy:
-
Morri, A.
Ceshini, L.
Pellizzari, M.
Menapace, C.
Vettore, F.
Veneri, E. - Powiązania:
- https://bibliotekanauki.pl/articles/356545.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
27MnCrB5-2
austempering
microstructure
mechanical properties
low temperature - Opis:
- The effect of austempering parameters on the microstructure and mechanical properties of 27MnCrB5-2 steel has been investigated by means of: dilatometric, microstructural and fractographic analyses; tensile and Charpy V-notch (CVN) impact tests at room temperature and a low temperature. Microstructural analyses showed that upper bainite developed at a higher austempering temperature, while a mixed bainiticmartensitic microstructure formed at lower temperatures, with a different amount of bainite and martensite and a different size of bainite sheaf depending on the temperature. Tensile tests highlighted superior yield and tensile strengths (≈30%) for the mixed microstructure, with respect to both fully bainitic and Q&T microstructures, with only a low reduction in elongation to failure (≈10%). Impact tests confirmed that mixed microstructures have higher impact properties, at both room temperature and a low temperature.
- Źródło:
-
Archives of Metallurgy and Materials; 2017, 62, 2A; 643-651
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł