On a New Two‐Step Air Cooling Method Following Thermomechanically Controlled Rolling: Microstructural Evolution and Mechanical Properties of a High‐Strength Multiphase Medium Carbon Microalloyed Steel

2020 ◽  
pp. 2000563
Author(s):  
Hari Srinivasa Rao Magham ◽  
Nandakumar Maheswari ◽  
Kumar Dinesh ◽  
Lakshmanan Vijayaraghavan ◽  
Shanmugam Sankaran ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructural Evolution ◽  
Microalloyed Steel ◽  
High Strength ◽  
Controlled Rolling ◽  
Air Cooling ◽  
Multiphase Medium ◽  
Medium Carbon ◽  
Cooling Method ◽  
Carbon Microalloyed

Obtaining Ultrafine and Nanocrystalline Structure by Hot and Warm Deformation in Microalloyed Steel X90

2012 ◽  
Vol 706-709 ◽  
pp. 1624-1629 ◽  
Author(s):  
Dmitry Ringinen ◽  
Nicolay G. Kolbasnikov ◽  
Oleg G. Zotov ◽  
Andrey Rudskoy
Keyword(s):  
Mechanical Properties ◽  
Microalloyed Steel ◽  
Nanocrystalline Structure ◽  
High Strength ◽  
Controlled Rolling ◽  
Bainite Transformation ◽  
Warm Deformation ◽  
Processing Mode ◽  
Steel Strength ◽  
Different Temperatures

In this paper we have investigated the possibility of increasing the complex mechanical properties of steel strength category X90 by refinement the structure of hot and warm deformation. Were carried out tests to determine the critical points of recrystallization and built thermokinetic curves of austenite decomposition. After that, for produce disperse ferrite in samples has been applied to the processing mode, which is exactly the same mode of controlled rolling, then, to obtain nanoscale state of the metal deformed at temperatures of bainite transformation with varying degrees of deformation at different temperatures. It was shown that the dispersion and morphology of the structure and, consequently, the mechanical properties vary depending on temperature and strain, and samples show satisfactory ductility at high strength.

OVAKO CROMAX IH 482

Alloy Digest ◽  
2016 ◽  
Vol 65 (2) ◽  
Keyword(s):  
Heat Treatment ◽  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Tensile Properties ◽  
Microalloyed Steel ◽  
High Strength ◽  
Medium Carbon ◽  
Hydraulic Cylinders ◽  
Rolled Condition ◽  
Carbon Microalloyed

Abstract Induction hardened Cromax IH 482 is based on a medium carbon, microalloyed steel, which is characterized by high strength in the as-rolled condition, i.e., without heat treatment. The alloy is used for the manufacture of piston rods, pistons, and eyes for hydraulic cylinders. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance and surface qualities as well as forming, machining, and joining. Filing Code: SA-742. Producer or source: Ovako Cromax AB.

Precipitation Strengthening in a Low Carbon Nb-Microalloyed Steel

2005 ◽  
Vol 500-501 ◽  
pp. 481-488 ◽  
Author(s):  
D.Q. Bai ◽  
F. Hamad ◽  
J. Asante ◽  
S. Hansen
Keyword(s):  
Mechanical Properties ◽  
Microalloyed Steel ◽  
High Strength Steels ◽  
Aging Treatment ◽  
High Strength ◽  
Precipitation Strengthening ◽  
Microalloyed Steels ◽  
Low Carbon ◽  
Nb Microalloyed Steel ◽  
Carbon Microalloyed

Among modern weldable high strength steels, low carbon microalloyed steels have been widely used for linepipe, construction, and automobile industries. One of the major technical components to successfully produce these steels is to effectively use precipitation strengthening. In the present paper, the effect of an aging treatment on the microstructure and mechanical properties of a low carbon Nb-microalloyed steel is analyzed.

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