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Effect of Prestrain and Aging on Mechanical Properties of X100 Pipeline Steels
Harsh environments that may displace a given pipeline beyond the elastic limit include: seismic areas (that may be susceptible to soil liquefaction, fault displacement or soil instabilities), continuous or discontinuous permafrost (that may result in thaw settlement and frost heave), and construction. Then, strain aging generally occurs in steels which undergo a deformation process followed by thermal exposure. Under this background, the research of strain aging on X100 line pipe steels was developed. This paper introduces the development of X100 pipeline steels and focuses on the influence of strain aging on the mechanical properties of the base material. Line pipe mechanical properties of interest include: longitudinal and transverse yield strength, tensile strength, yield-to-tensile strength ratio, and Charpy impact energy. The main factors influencing the mechanical properties of interest include pre-strain and temperature. So, the effect of the law of strain aging on the mechanical properties of X100 pipeline steels can be clearly identified.
Effect of Prestrain and Aging on Mechanical Properties of X100 Pipeline Steels
Harsh environments that may displace a given pipeline beyond the elastic limit include: seismic areas (that may be susceptible to soil liquefaction, fault displacement or soil instabilities), continuous or discontinuous permafrost (that may result in thaw settlement and frost heave), and construction. Then, strain aging generally occurs in steels which undergo a deformation process followed by thermal exposure. Under this background, the research of strain aging on X100 line pipe steels was developed. This paper introduces the development of X100 pipeline steels and focuses on the influence of strain aging on the mechanical properties of the base material. Line pipe mechanical properties of interest include: longitudinal and transverse yield strength, tensile strength, yield-to-tensile strength ratio, and Charpy impact energy. The main factors influencing the mechanical properties of interest include pre-strain and temperature. So, the effect of the law of strain aging on the mechanical properties of X100 pipeline steels can be clearly identified.
Effect of Prestrain and Aging on Mechanical Properties of X100 Pipeline Steels
Zhang, Weiwei (author) / Qi, Lihua (author) / Li, Yang (author) / Xiong, Qingren (author) / Ji, Lingkang (author)
International Conference on Pipelines and Trenchless Technology ; 2013 ; Xi'an, China
ICPTT 2013 ; 1022-1032
2013-10-01
Conference paper
Electronic Resource
English
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