Mathematical modeling of steel chemical composition and modes of thermomechanical treatment influence on hot-rolled plate mechanical properties

2017 ◽  
Vol 92 (9-12) ◽  
pp. 3725-3738
Author(s):  
D. Chikishev ◽  
E. Pozhidaeva
Keyword(s):  
Mathematical Modeling ◽  
Mechanical Properties ◽  
Chemical Composition ◽  
Thermomechanical Treatment ◽  
Rolled Plate ◽  
Hot Rolled

Influence of Steel Chemical Composition and Modes of the Thermomechanical Treatment on Mechanical Properties of a Hot Rolled Plate

2016 ◽  
Vol 870 ◽  
pp. 584-592
Author(s):  
V.M. Salganik ◽  
D.N. Chikishev ◽  
E.B. Pozhidaeva
Keyword(s):  
Mechanical Properties ◽  
Chemical Composition ◽  
Process Parameters ◽  
Low Cost ◽  
Rolled Plate ◽  
Microalloyed Steels ◽  
Neural Network Modeling ◽  
Element Analysis ◽  
The Neural Network ◽  
Hot Rolled

A mathematical model for calculation of rolling pipe mechanical properties has been developed. The influence of alloying elements in steel by means of optimal process parameters of thermomechanical rolling was analyzed. There are two methods of mathematical modeling used in the study: the neural network modeling used to select the optimal chemical composition and the finite element analysis used to optimize the process parameters. Due to large availability, low cost and high accuracy of the results, these methods are considered to be the most promising ones. Two ways to reduce the cost of a hot-rolled plate from microalloyed steels have been developed. A complex of technological processing replacement was developed.

Correlation among Microstructure, Texture, and Properties along the Thickness Direction in As-Hot-Rolled and As-Solution-Quenched Al7055 Thick Plates

2021 ◽  
Vol 1026 ◽  
pp. 65-73
Author(s):  
Kai Zhu ◽  
Hong Wei Yan
Keyword(s):  
Mechanical Properties ◽  
Yield Strength ◽  
Tensile Tests ◽  
Rolled Plate ◽  
Uniaxial Tensile ◽  
Thickness Direction ◽  
Electron Backscattered Diffraction ◽  
Thick Plates ◽  
Aluminum Plates ◽  
Hot Rolled

Both microstructure inhomogeneity and mechanical property diversity along the thickness direction in rolled thick aluminum plates have been considered to have a remarkable impact on the performance and properties of the products made from the plates. In this study, scanning electron microscopy (SEM) and electron backscattered diffraction (EBSD) characterizations of microstructure and texture types along the thickness directions of Al7055 thick plate specimens prepared using two conditions, hot-rolling and solution-quenching, were performed. To examine the mechanical properties, uniaxial tensile tests were also carried out on specimens machined from both types of thick plates, using a layered strategy along the thickness direction. The results indicate that both the microstructure and mechanical properties are inhomogeneous under the two conditions. Furthermore, it is evident that there is a hereditary relationship between the mechanical properties of the two plates—areas with higher yield strength in the as-hot-rolled plate correspond to areas with the higher yield strength in the as-solution-quenched plate

Application of Quenching-Partitioning-Tempering Process in Hot Rolled Plate Fabrication

2010 ◽  
Vol 654-656 ◽  
pp. 82-85 ◽  
Author(s):  
Shu Zhou ◽  
Ying Wang ◽  
Nai Lu Chen ◽  
Yong Hua Rong ◽  
Jian Feng Gu
Keyword(s):  
Mechanical Properties ◽  
Retained Austenite ◽  
High Strength Steels ◽  
High Strength ◽  
Significant Fraction ◽  
Rolled Plate ◽  
Quenching And Partitioning ◽  
Good Ductility ◽  
Hot Rolled ◽  
Rolled Plates

The quenching-partitioning-tempering (Q-P-T) process, based on the quenching and partitioning (Q&P) treatment, has been proposed for producing high strength steels containing significant fraction of film-like retained austenite and controlled amount of fine martensite laths. In this study, a set of Q-P-T processes for C-Mn-Si-Ni-Nb hot rolled plates are designed and realized. The steels with Q-P-T processes present a combination of high strength and relatively good ductility. The origin of such mechanical properties is revealed by microstructure characterization.

Thixoforming of Semisolid Slurry with High Fraction Solid Fabricated by Partial Melting of Commerical Wrought Aluminum Alloys

2019 ◽  
Vol 285 ◽  
pp. 210-218
Author(s):  
Ju Fu Jiang ◽  
Ying Zhe Liu ◽  
Guan Fei Xiao ◽  
Ying Wang
Keyword(s):  
Mechanical Properties ◽  
Partial Melting ◽  
Recrystallization Temperature ◽  
Rolled Plate ◽  
Continuous Heating ◽  
Semisolid Slurry ◽  
Semisolid State ◽  
High Fraction ◽  
Hot Rolled ◽  
Wrought Aluminum

Semisolid slurries of four wrought alloys were fabricated via partial melting of commerical wrought aluminum alloy. Thixoforming experiments of four typical parts were performed. The results showed that a large amount of equiaxed grains before soaking in semisolid state were created due to recrystallization occurred in the continuous heating from room temperature to a given temperature above recrystallization temperature. It provides a desirable microstructure to form spheroidal grains during the next soaking process in semisolid state. The microstructure of the 2A12,7A04 and 7075 semisolid slurry consisted of fine and spheroidal grains. The elongation of the thixoformed parts were higher those of the hot-rolled plate. The UTS of the thixoformed parts were close or ever higher than those of the hot-rolled plate. Although the grain size and roundness of the 5A06 semisolid slurry are not very desirable, the mechanical properties of the thixoformed part are close or ever than those of the hot-rolled plate. The high mechanical properties of the thixoformed parts further confirmed the feasibility of short-process thixoforming route

Effect of Modes of Rolling on Mechanical Properties, Texture and Ballistic Performance of Al-7017 Alloy

2011 ◽  
Vol 702-703 ◽  
pp. 979-982
Author(s):  
Pradipta Kumar Jena ◽  
Chandan Mondal ◽  
K. Siva Kumar ◽  
A.K. Singh
Keyword(s):  
Mechanical Properties ◽  
Hot Rolling ◽  
Charpy Impact ◽  
Rolled Plate ◽  
Ballistic Performance ◽  
Rolled Material ◽  
Hot Rolled ◽  
Hot Rolling Conditions

This study describes the influence of texture and associated mechanical properties on ballistic performance of Aluminium-7017 alloy in two different (unidirectional and clock) hot rolling conditions. The change in texture has been explained in terms of β fiber in hot rolled and T6 tempered condition. A marginal variation in strength and hardness is observed with changing the mode of rolling, whereas Charpy impact values are found to be varying considerably. Results show that the unidirectional rolled material exhibits improved ballistic performance than that of the clock rolled plate. This has been attributed to different textures present in both the plates.

Performance Analysis of Fire-Resistant H-Beam Steel

2010 ◽  
Vol 163-167 ◽  
pp. 2949-2952
Author(s):  
Jian Qing Qian ◽  
Ji Ping Chen ◽  
Bao Qiao Wu ◽  
Jie Ca Wu
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Chemical Composition ◽  
Room Temperature ◽  
High Temperature Strength ◽  
High Temperature Mechanical Properties ◽  
H Beam ◽  
Hot Rolled ◽  
Very High ◽  
Room Temperature Strength

The fire-resistant hot-rolled H-beam steel is the newly developed structure material. The development situation of the fire-resistant H-beam steel is briefly introduced. The chemical composition, microstructure, room temperature and high temperature mechanical properties and weldability of several batches of the developed domestic fire-resistant hot-rolled H-beam steels are comprehensively analyzed. The results show that the newly developed hot-rolled fire-resistant H-beam steel has very high room temperature strength, certain high temperature strength, good welding performance, but the toughness needs to be further improved. The performance of web and flange of H-beam steel has large gap.

scholarly journals Mathematical Modeling in View of Property Prediction of DD11 Steel Laminated in LBC Liberty Galati

2021 ◽  
Vol 44 (2) ◽  
pp. 5-10
Author(s):  
Marian-Iulian NEACȘU
Keyword(s):  
Mathematical Modeling ◽  
Mechanical Properties ◽  
Mathematical Model ◽  
Rolling Mill ◽  
Property Prediction ◽  
Significant Time ◽  
Active Experiment ◽  
Hot Rolled ◽  
Made In ◽  
Rolled Tape

The paper presents a mathematical model for predicting the mechanical properties of hot rolled strips. The realization of this mathematical model relied on statistical measurements of the mechanical properties (Rm, Rp0,2 and A5) for the laminated strip in the LBC rolling mill from the Liberty Steel Galati steel plant. To achieve this mathematical model, there has been used the active experiment method.By means of this mathematical model, significant time and material savings can be made in the process of testing the mechanical properties for hot rolled tape.

Establish Dependency Relations between Chemical Composition and Mechanical Properties of Aluminum Alloy 6082 AlSi1MgMn

2016 ◽  
Vol 822 ◽  
pp. 389-396
Author(s):  
Laura Diana Grigorie ◽  
Alina Elena Romanescu ◽  
Daniela Vintilă
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Chemical Composition ◽  
Mathematical Models ◽  
Heat Treatments ◽  
Coefficient Of Determination ◽  
Fisher Test ◽  
Alloy Type ◽  
Optimal Coefficient ◽  
Hot Rolled

This paper presents mathematical models derived from the study of the chemical composition and mechanical properties of aluminum alloy type 6082 AlSi1MgMn. They were determined based on the study of the chemical composition of 30 batches of alloy 6082 and their mechanical properties. Mathematical models obtained were checked by Fisher test, and the two of them had the optimal coefficient of determination. Aluminum alloy was hot rolled and hardened through heat treatments.

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