Properties and Control of Hot-Rolled Steels

Yeo, R.; Melville, A. G.; Repas, P. E.; Gray, J. Malcolm

doi:10.1007/bf03378721

Cited by 6 publications

(3 citation statements)

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“…June [13][14][15][16][17]1983: Scanning Electron Microscopy and X-Ray Microanalysis; Lehigh University, Bethlehem, Pennsylvania.…”

Section: Scanning Electron Microscopymentioning

confidence: 99%

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1983

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“…June [13][14][15][16][17]1983: Scanning Electron Microscopy and X-Ray Microanalysis; Lehigh University, Bethlehem, Pennsylvania.…”

Section: Scanning Electron Microscopymentioning

confidence: 99%

“…May[16][17][18][19][20] 1983: Fifth National Conference and School on X-ray Analysis: AXAA 1983; Melbourne, Victoria, Australia. Contact Australian X-ray Analytical Association, Victorian Branch, P.O.…”

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“…The processes of the CR and CC of steel is still the subject of extensive study and analysis at scientific conferences and in journals and books [ 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 ]. Significant refining of the coarse grain (CG) structures of the polycrystalline materials can be achieved by the following procedures: thermoplastic deformation and cooling named as CR–CC (conventional methods of grain size refinement) with the diameter of the final grain size at the level of microns d ≥ 1 μm severe plastic deformation processes (SPD), which represent new methods of forming the final structure with grain-size diameter at the level of nanometers d < 1 μm [ 58 , 59 , 60 , 61 ].…”

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Overview of HSS Steel Grades Development and Study of Reheating Condition Effects on Austenite Grain Size Changes

Kvačkaj

Bidulská

Bidulský³

2021

Materials

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This review paper concerns the development of the chemical compositions and controlled processes of rolling and cooling steels to increase their mechanical properties and reduce weight and production costs. The paper analyzes the basic differences among high-strength steel (HSS), advanced high-strength steel (AHSS) and ultra-high-strength steel (UHSS) depending on differences in their final microstructural components, chemical composition, alloying elements and strengthening contributions to determine strength and mechanical properties. HSS is characterized by a final single-phase structure with reduced perlite content, while AHSS has a final structure of two-phase to multiphase. UHSS is characterized by a single-phase or multiphase structure. The yield strength of the steels have the following value intervals: HSS, 180–550 MPa; AHSS, 260–900 MPa; UHSS, 600–960 MPa. In addition to strength properties, the ductility of these steel grades is also an important parameter. AHSS steel has the best ductility, followed by HSS and UHSS. Within the HSS steel group, high-strength low-alloy (HSLA) steel represents a special subgroup characterized by the use of microalloying elements for special strength and plastic properties. An important parameter determining the strength properties of these steels is the grain-size diameter of the final structure, which depends on the processing conditions of the previous austenitic structure. The influence of reheating temperatures (TReh) and the holding time at the reheating temperature (tReh) of C–Mn–Nb–V HSLA steel was investigated in detail. Mathematical equations describing changes in the diameter of austenite grain size (dγ), depending on reheating temperature and holding time, were derived by the authors. The coordinates of the point where normal grain growth turned abnormal was determined. These coordinates for testing steel are the reheating conditions TReh = 1060 °C, tReh = 1800 s at the diameter of austenite grain size dγ = 100 μm.

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High-Strength Linepipe Steels and Physical Simulation of Production Processes

Siciliano

2018

Lecture Notes in Mechanical Engineering

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Properties and Control of Hot-Rolled Steels

Cited by 6 publications

References 6 publications

Meetings Calendar

Meetings Calendar

Overview of HSS Steel Grades Development and Study of Reheating Condition Effects on Austenite Grain Size Changes

High-Strength Linepipe Steels and Physical Simulation of Production Processes

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