Research on the Reverse Loading Hardening Model of the X80 Pipeline Steel

Xing Zhou Cai; Lin Feng Wang; Shi Yan Zhao; Bao Feng Guo; Yu Xin Zhu

doi:10.4028/www.scientific.net/AMR.750-752.370

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 750-752Research on the Reverse Loading Hardening Model of...

Research on the Reverse Loading Hardening Model of the X80 Pipeline Steel

Abstract:

Based on the reverse uniaxial loading test, the influences of the plastic deformation on the strength properties are studied. The softening of the X80 pipeline steel is observed which reveals the hardening type is mixed hardening. The expression of mixed hardening factor M and the material parameters of the nonlinear mixed hardening model under different M can be obtained. The results show that, if the pre-strain increases and ranges from 0.55% to 2.5%, the mixed hardening characteristics of the X80 pipeline steel will be more obvious and its M will also increase.

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Periodical:

Advanced Materials Research (Volumes 750-752)

Pages:

370-374

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.750-752.370

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Online since:

August 2013

Authors:

Xing Zhou Cai, Lin Feng Wang, Shi Yan Zhao, Bao Feng Guo, Yu Xin Zhu

Keywords:

Hardening Model, Pipeline Steel, Pre-Strain, Reverse Loading, Yield Strength

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