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- Title
A High-Strength High-Ductility Ti- and Mo-Bearing Ferritic Steel.
- Authors
Huang, Yao; Zhao, Aimin; Wang, Xiaopei; Wang, Xuming; Yang, Jingbo; Han, Junke; Yang, Fengli
- Abstract
This study reports the development of a Ti- and Mo-bearing ferritic steel precipitation-strengthened by nanometer-sized carbides. The steel showed an ultimate tensile strength of 995 MPa, a tensile elongation of 20 pct, and a hole-expanding ratio of 44 pct. The precipitation of nanometer-sized carbides in this steel during isothermal transformation at 873 K, 898 K, and 973 K (600 °C, 625 °C, and 700 °C) for 60 minutes was investigated in detail. The contributions of various strengthening mechanisms were analyzed, and the maximum contribution from the nanometer-sized carbide precipitates was estimated to be about 430 MPa.
- Subjects
FERRITIC steel; DUCTILITY; STRENGTH of materials; TITANIUM steel; MOLYBDENUM alloys; CARBIDES
- Publication
Metallurgical & Materials Transactions. Part A, 2016, Vol 47, Issue 1, p450
- ISSN
1073-5623
- Publication type
Article
- DOI
10.1007/s11661-015-3232-6