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Conditions for Obtaining a Good Set of Properties for Low-Carbon Microalloyed High-Strength Steels Clad with Corrosion-Resistant Austenitic Steels
- Source :
- Metallurgist. 60:945-951
- Publication Year :
- 2017
- Publisher :
- Springer Science and Business Media LLC, 2017.
-
Abstract
- Conditions are studied for preparation with temperature and deformation treatment of a good set of mechanical properties and high quality rolled product characteristics for low-carbon Ti–Nb–V- and Mo–Timicroalloyed high-strength steels, clad with austenitic class corrosion-resistant chromium-nickel steels. It is established that an increase in uniformity of deformation for layers of a two-layer workpiece for steels of these types is facilitated by an increase in heating temperature and for the end of rolling to 1250 and 900°C, respectively. In order to provide good process ductility of corrosion-resistant austenitic steels in this temperature range, their chemical composition should satisfy a condition Crequ/Niequ not more than 1.5–1.6. On the basis of modeling results of hot rolling in a Gleeble 3500 unit and a laboratory duo 300 rolling mill, it is shown that with the use of a high temperature for workpiece heating and for the end of rolling it is possible to achieve good strength properties (ultimate strength more than 850 MPa) for lowcarbon Ti–Nb–V- and Mo–Ti-microalloyed steels. Test results for clad rolled product prepared from four two-layer workpieces with a different combination of steels in layers points to the achievement not only of high strength for low-carbon microalloyed steels of one layer, but also other mechanical properties, and also high quality layer joint properties.
- Subjects :
- Austenite
Materials science
Metallurgy
Metals and Alloys
chemistry.chemical_element
02 engineering and technology
Atmospheric temperature range
Condensed Matter Physics
020501 mining & metallurgy
0205 materials engineering
chemistry
Mechanics of Materials
Ultimate tensile strength
Materials Chemistry
Deformation (engineering)
Ductility
Carbon
Layer (electronics)
Joint (geology)
Subjects
Details
- ISSN :
- 15738892 and 00260894
- Volume :
- 60
- Database :
- OpenAIRE
- Journal :
- Metallurgist
- Accession number :
- edsair.doi...........6fa5be34660fc63585f05cd577a5e589