Effect of coiling temperature on impact toughness of hot rolled ultra-high-strength multiphase steel strips

Mandal, Animesh; Ghosh, Abhijit; Chakrabarti, Debalay; Davis, Claire

doi:10.1016/j.msea.2021.141796

Cited by 12 publications

(2 citation statements)

References 88 publications

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“…Further insights from Figure 9 reveal the formation of shear bands during shock or impact events at the edges of the fracture surface. These shear bands play a critical role in the material's response to crack propagation, exhibiting higher resistance to this process [23]. Numerous shear bands on the otherwise smooth fracture surface of aluminium 6061 are crucial in determining the material's behaviour under impact or shock stimuli.…”

Section: The Effect Of Side Groove Depth Ratio On Fracture Morphologymentioning

confidence: 99%

Effect of V-shaped Side Groove on Shear Lips Formation of Aluminium Alloy 6061 by Charpy Impact Test

Dayang Raihanah Awang Morni,

Mohd Azhar Harimon,

Nafisah Arina Hidayati

2024

ARAM

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This study investigates the effect of V-shaped side grooves on shear lip formation in aluminium alloy 6061 through Charpy impact testing. Aluminium is used in machines and industry as a structural component due to its mechanical properties, lightweight characteristics, easy fabrication, and high specific strength. The presence of a V-shaped side groove alters the stress distribution during impact, potentially influencing the deformation behaviour and fracture characteristics of the material. In this work, the impact tests were conducted on specimens with and without a V-shaped side groove, and the resulting shear lips formation was analysed. The findings reveal that the V-shaped side groove minimises shear lip formation compared to specimens without side grooves. This can be attributed to the surface morphology, which shows a lesser shear lip area with an increasing side groove depth ratio. A smaller shear lips area in Charpy impact tests signifies reduced plastic deformation near the groove or notch region. It indicates the material’s fracture characteristic has lower ductility and limited ability to deform plastically before a fracture occurs. This implies decreased energy absorption capacity, equated to impact energy, and an increased likelihood of brittle fracture behaviour as the side groove depth ratio increases. The micrograph of the fracture surface shows dimples, shear, and cleavage patterns.

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Section: The Effect Of Side Groove Depth Ratio On Fracture Morphologymentioning

confidence: 99%

Effect of V-shaped Side Groove on Shear Lips Formation of Aluminium Alloy 6061 by Charpy Impact Test

Dayang Raihanah Awang Morni,

Mohd Azhar Harimon,

Nafisah Arina Hidayati

2024

ARAM

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“…Ultrahigh strength steel is one kind of steel alloy used to manufacture structural parts bearing high stress and is widely applied in the aviation, aerospace, and military fields [25][26][27][28]. At present, there is interest in studying the mechanical properties of ultrahigh strength steels produced via selective laser melting.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Microstructure and Mechanical Properties of an Ultrahigh Strength Martensitic Steel Fabricated Using Laser Metal Deposition Additive Manufacturing

Wang

Zhang

et al. 2022

Metals

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Ultrahigh strength steels were additively manufactured (AM) using different batches of powders by means of the laser metal deposition (LMD) technique. After quenching and tempering treatments, the microstructures, mechanical properties, and fracture modes of ultrahigh strength steels were investigated by several testing methods. The results demonstrate that martensite and Fe3C cementite were found in the three specimens after quenching and tempering treatments, and the tempered martensite microstructure had a lamellar structure in all specimens. The widths of these martensite lathes were observed to be different for the APHT-1, APHT-2, and APHT-3 samples, and their sizes were 1.92 ± 0.90 μm, 1.87 ± 1.09 μm, and 1.82 ± 0.85 μm, respectively. The martensitic steel exhibited excellent mechanical properties (tensile strength and impact toughness). The yield strength and the ultimate tensile strength of the APHT-3 sample reached 1582 MPa and 1779 MPa, respectively. Moreover, the value of the impact energy for the APHT-1 sample was 46.4 J. In addition, with the changes in the batches of ultrahigh strength steel powders, the fracture mode changed from ductile fracture to brittle fracture under tensile force and impact loads.

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Temperature modeling and analysis of transfer bar using hot coil box technology

Jiang

Wen

et al. 2022

Int J Adv Manuf Technol

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Effect of coiling temperature on impact toughness of hot rolled ultra-high-strength multiphase steel strips

Cited by 12 publications

References 88 publications

Effect of V-shaped Side Groove on Shear Lips Formation of Aluminium Alloy 6061 by Charpy Impact Test

Effect of V-shaped Side Groove on Shear Lips Formation of Aluminium Alloy 6061 by Charpy Impact Test

Investigation of the Microstructure and Mechanical Properties of an Ultrahigh Strength Martensitic Steel Fabricated Using Laser Metal Deposition Additive Manufacturing

Temperature modeling and analysis of transfer bar using hot coil box technology

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