Influence of TMCP Parameters on Structure and Properties of Low Carbon Cu Bearing Ultra-High Strength Steel

Mandal, G.; Ghosh, S. K.; Chakrabarti, Debalay; Chatterjee, S.

doi:10.1134/s0031918x2002012x

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…Since the percentage elongation of EH46 steel is 17%, all three data sets were well below the maximum strain value of the material. bon, copper bearing, ultra-high strength steels [21]. EH46 steel is low carbon and ultrahigh strength, and 20 mm plate contains 0.21 wt% copper [11].…”

Section: Resultsmentioning

confidence: 99%

“…It is also interesting to note that while the yield stress of normal EH46 steel is stated as 460 MPa, the steel used in the construction of the flight deck and hangar decks of the QEC carriers is TMCP. TMCP improves the yield strength of low carbon, copper bearing, ultra-high strength steels [21]. EH46 steel is low carbon and ultra-high strength, and 20 mm plate contains 0.21 wt% copper [11].…”

Section: Resultsmentioning

confidence: 99%

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Computational Analysis of Flight Deck Structural Behaviour under Variable Loadings

Carter

Rizvi

2021

JMSE

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The flight deck of an aircraft carrier is subjected to various loads. In addition, the operation of fixed-wing aircraft presents unique structural requirements for the deck. This paper, therefore, compares the structural behaviour of a flight deck which was designed following the guidelines of three classification societies: Lloyd’s Register (LR), Det Norske Veritas Germanischer Lloyd (DNV), and Registro Italiano Navale (RINA). The loading scenarios considered in this work represent the operation of an F-35B Lightning jet from a Queen Elizabeth-class (QEC) aircraft carrier. A commercial finite element analysis (FEA) software ANSYS was also used to investigate the deflection, stress and strain on the deck plates. The analysis identified that only the calculated deck thickness values based on the LR regulations would meet the requirement for the class. This finding was further supported by the FEA.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Computational Analysis of Flight Deck Structural Behaviour under Variable Loadings

Carter

Rizvi

2021

JMSE

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“…NiCrMo high-strength steels have been widely used in the field of shipbuilding and engineering fields such as mining and dredging due to their mechanical properties of high strength with good toughness and ductility [ 1 ]. In recent years, extensive welding during shipbuilding has increased the demand for hull steel’s weldability; hence, Cu-bearing high-strength low-alloy (HSLA) steel has been developed to meet the demand [ 2 , 3 , 4 , 5 ]. The precipitation of Cu-rich particles makes up for the loss in strength, which is caused by the decrease in the alloy element content.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Direct Quenching on the Microstructure and Mechanical Properties of NiCrMo and Cu-Bearing High-Strength Steels

Zhou,

Chai,

Luo

et al. 2024

Materials

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In this work, two types of 590 MPa grade steels, composed of NiCrMo steel and Cu-bearing steel, were processed using traditional offline quenching and tempering and direct quenching (DQ) and tempering. The influence of DQ on microstructural evolution and strengthening mechanisms of these two types of steel was investigated. Grain refinement and dislocation density increase were determined by controlled rolling and following the DQ process in both two types of steel. In Cu-bearing steels, the refined grains and high-density dislocation further promoted the precipitation behavior of Cu-rich particles and alloyed carbides during the tempering treatment. Compared with traditionally quenched and tempered steels, NiCrMo steels after the direct quenching and tempering (DQT) process achieved 106 MPa higher yield strength through grain refinement strengthening and dislocation strengthening, while the Cu-bearing steels after the DQT process achieved 159 MPa higher yield strength through grain refinement strengthening, dislocation strengthening, and precipitation strengthening. The contribution degree of different strengthening mechanisms was quantitatively analyzed. Grain refinement also compensated for the toughness loss caused by the increase in dislocation, leading to an impact energy of 237 J and 248 J at −84 °C for NiCrMo and Cu-bearing steels after DQT, respectively.

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Improvement of strength and toughness of 1 GPa Cu-bearing HSLA steel by direct quenching

Kan¹,

Ye²,

Wang³

et al. 2022

Materials Science and Engineering: A

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Influence of TMCP Parameters on Structure and Properties of Low Carbon Cu Bearing Ultra-High Strength Steel

Cited by 4 publications

References 11 publications

Computational Analysis of Flight Deck Structural Behaviour under Variable Loadings

Computational Analysis of Flight Deck Structural Behaviour under Variable Loadings

The Effect of Direct Quenching on the Microstructure and Mechanical Properties of NiCrMo and Cu-Bearing High-Strength Steels

Improvement of strength and toughness of 1 GPa Cu-bearing HSLA steel by direct quenching

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