Charpy Impact Toughness and Transition Temperature for API 5L X52 Seamless Pipeline

IF 0.7 4区 材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING
S. Capula-Colindres, G. Terán, J. C. Velázquez, D. Angeles-Herrera, E. Torres-Santillán
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引用次数: 0

Abstract

This work presents the Charpy energy values (CVN) in the ductile-to-brittle transition (DBT) temperature zone for different directions with respect to the longitudinal direction of API 5L X52 seamless pipeline steel. The material-processing directions were L-T, T-L, S-T, T-S, L-S, S-L, and 45°. At the same time, the temperature variation was –100, 0, 25, 50, and 100°C. Charpy impact specimens were machined in accordance with the ASTM E23 standard, with dimensions of 10×10×55 mm. In addition, the microstructures and fracture surfaces were examined using scanning electron microscopy. The energy values for all directions show lower shelf behavior at –100°C, a transition zone from –100 to 50°C, and an upper shelf behavior above 50°C as the characteristics of this type of grade pipeline.

Abstract Image

API 5L X52 无缝钢管的夏比冲击韧性和过渡温度
本研究给出了 API 5L X52 无缝管线钢在韧性-脆性转变(DBT)温度区域内,与纵向方向不同的夏比能量值(CVN)。材料加工方向为 L-T、T-L、S-T、T-S、L-S、S-L 和 45°。同时,温度变化为 -100、0、25、50 和 100°C。夏比冲击试样按照 ASTM E23 标准加工,尺寸为 10×10×55 毫米。此外,还使用扫描电子显微镜检查了微观结构和断裂面。所有方向的能量值都表明,这种级别的管道在 -100°C 时具有较低的搁架行为,在 -100 至 50°C 之间有一个过渡区,在 50°C 以上则具有较高的搁架行为。
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来源期刊
Strength of Materials
Strength of Materials MATERIALS SCIENCE, CHARACTERIZATION & TESTING-
CiteScore
1.20
自引率
14.30%
发文量
89
审稿时长
6-12 weeks
期刊介绍: Strength of Materials focuses on the strength of materials and structural components subjected to different types of force and thermal loadings, the limiting strength criteria of structures, and the theory of strength of structures. Consideration is given to actual operating conditions, problems of crack resistance and theories of failure, the theory of oscillations of real mechanical systems, and calculations of the stress-strain state of structural components.
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