Effect of Annealing Treatments on the Microstructure and Texture Development in API 5L X60 Microalloyed Pipeline Steel

Joodaki, R.; Zaree, S. R. Alavi; Gheisari, Kh.; Eskandari, M.

doi:10.1007/s11665-017-2673-z

Cited by 15 publications

(3 citation statements)

References 28 publications

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“…21. Consistent with previous works [38,39], it is seen that grains with {001} orientations, mainly the rotated cube component {001}〈110〉 " , were more vulnerable to crack propagation. Also, as shown in Fig.…”

Section: Fractographysupporting

confidence: 90%

Promising bending properties of a new as-rolled medium-carbon steel achieved with furnace-cooled bainitic microstructures

Javaheri

Pallaspuro

Kaijalainen

et al. 2020

Materials Science and Engineering: A

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Section: Fractographysupporting

confidence: 90%

Promising bending properties of a new as-rolled medium-carbon steel achieved with furnace-cooled bainitic microstructures

Javaheri

Pallaspuro

Kaijalainen

et al. 2020

Materials Science and Engineering: A

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“…Figure 10a shows the ODF sections which contain the important fibers in bcc metals. The important fibers are defined as follows [35] For the BM (Fig. 10b), a high orientation density was observed along the α and γ fibers.…”

Section: Micro-texturementioning

confidence: 99%

EBSD Characterization of Microstructure and Micro-texture in a Friction Stir-Welded DP600 Steel

Ashrafi

Shamanian

Sanayei

et al. 2023

Acta Metall. Sin. (Engl. Lett.)

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The microstructure and micro-texture in different areas of a friction stir (FS)-welded DP600 steel were investigated by means of electron backscatter diffraction. The volume fraction of martensite and non-polygonal ferrite was evaluated based on the image quality (IQ) parameter. Analysis of grain boundaries revealed that the fraction of sub-grain boundaries as well as that of low-angle grain boundaries in the heat-affected zone (HAZ) and stir zone (SZ) was more than doubled compared to those in the DP600 steel base metal (BM). The micro-texture examination of the BM showed strong {112} < 110 > and {111} < 112 > components with an intensity 4.6 times of that random texture. The texture showed a memory effect in the HAZ, with a reduced overall intensity. Within the SZ, D 1 , D 2 and E shear texture components together with a cube component were developed. Formation of these texture components of ferrite were attributed to the transformation of B and R texture components of prior austenite, which are evidences of continuous dynamic recrystallization mechanism in the SZ of the friction stir-welded DP600 steel.

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“…Grain boundaries are an important 2D defect in steel materials; low‐energy coincidence site lattice (CSL) boundaries and low‐angle grain boundaries (LAGBs) create a resistant against hydrogen induced cracking (HIC) crack . Also, grain‐boundary strengthening is a significant mechanism on the comprehensive mechanical properties of steel . Grain refinement in pipeline steel increases the length of grain boundaries, disperses the plastic deformation to other grains, and lowers the internal stress concentration, such that the strength of the material is improved .…”

Section: Introductionmentioning

confidence: 99%

An Investigation on the Strengthening Mechanism Based on Grain‐Boundary Misorientation of High‐Strength Pipeline Steel

Duan

Pan

et al. 2019

steel research int.

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The microstructure and grain-boundary misorientation of X80 high-strength pipeline steel are analyzed using the scanning electron microscope, the electron backscatter diffraction, and the transmission electron microscope, and the effect of grain-boundary orientation on slip dislocation is investigated by constructing a grain-boundary dislocation model. The results show that the anisotropy of the mechanical properties of X80 pipeline steel is related not only to grain size and microstructure type but also to grain-boundary orientation, which the obstruction effect of the high-angle grain boundary on slip dislocation is significantly greater than that of the low-angle grain boundary. The larger the orientation difference is, the more disorderly the arrangement of atoms on both sides of grain boundary is, and the more difficult it is for dislocations to slip across grain boundary, so the strengthening effect is more remarkable. Also, when the grain-boundary misorientation is greater than 15 , the strengthening effect tends to stabilize due to the influence of the interfacial superposition.

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Effect of Annealing Treatments on the Microstructure and Texture Development in API 5L X60 Microalloyed Pipeline Steel

Cited by 15 publications

References 28 publications

Promising bending properties of a new as-rolled medium-carbon steel achieved with furnace-cooled bainitic microstructures

Promising bending properties of a new as-rolled medium-carbon steel achieved with furnace-cooled bainitic microstructures

EBSD Characterization of Microstructure and Micro-texture in a Friction Stir-Welded DP600 Steel

An Investigation on the Strengthening Mechanism Based on Grain‐Boundary Misorientation of High‐Strength Pipeline Steel

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