Microstructural Effects on J‐Integral Fracture Toughness of Welded High‐Mn Steels at 298 and 77 K

Park, Sangeun; Kayani, Saif Haider; Park, Eun Hye; Kim, Jung Gi; Kim, Sangshik; Sung, Hyokyung; Seol, Jae Bok

doi:10.1002/srin.202200259

Cited by 1 publication

(1 citation statement)

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“…Comparing the estimated CTOD initiation values by the standards with the estimated values using the stretch zone width (Table 12), it can be realized that the standard estimated values are as high as approximately 2.56 times the values estimated by the width of the stretch zone depending on the standard and orientation. Since the stretch zone width is defined as physical evidence of the ductile tearing initiation [9,17,[68][69][70], this implies some concerns about the methodology adopted by both ASTM E1820 [6] and ISO 12135 [7] using the 0.2 mm offset line and emphasizes the necessity of estimating the fracture initiation toughness based on the stretch zone measurement.…”

Section: Data Availability Statementmentioning

confidence: 99%

Ductile Fracture Behavior of ASTM A516 Gr.70 Pressure Vessel Steel by ASTM and ISO Fracture Toughness Standards

Coelho

Silva

Santos

et al. 2023

Metals

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Fracture toughness determination is crucial for the design phase of pressure vessels, and, although ASTM E1820 and ISO 12135 fracture toughness standards have existed for some time, some differences have been reported in the determination of this property. This study investigates the ductile fracture behavior of ASTM A516 Gr.70 pressure vessel steel and assesses the differences in estimating both standards. The steel’s tensile properties and initiation fracture toughness (JIC) were evaluated, taking into account the parallel and perpendicular orientations to the rolling direction. The results reveal the properties’ dependence on the rolling direction, mainly attributed to perlite banding. Additionally, as for the JIC determination, the differences were associated with the different blunting line slope estimations on each standard, reinforcing the necessity of a work-hardening-based blunting line for each material assessed.

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Section: Data Availability Statementmentioning

confidence: 99%

Ductile Fracture Behavior of ASTM A516 Gr.70 Pressure Vessel Steel by ASTM and ISO Fracture Toughness Standards

Coelho

Silva

Santos

et al. 2023

Metals

View full text Add to dashboard Cite

show abstract

Microstructural Effects on J‐Integral Fracture Toughness of Welded High‐Mn Steels at 298 and 77 K

Abstract: The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/srin.202200259.

Cited by 1 publication

References 32 publications

Ductile Fracture Behavior of ASTM A516 Gr.70 Pressure Vessel Steel by ASTM and ISO Fracture Toughness Standards

Ductile Fracture Behavior of ASTM A516 Gr.70 Pressure Vessel Steel by ASTM and ISO Fracture Toughness Standards

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