October 10, 2025

Low Crystallinity Molten Zone Inducing Tensile Ductility Reduction in Polyethylene Pipe Butt Fusion Joints

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Authors

YSYan ShiNanjing University of Aeronautics and Astronautics YTYangji Tao YXYidong XuNingbo University of Technology

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Implication

Study reveals reduced ductility and tensile strength in polyethylene fusion joints due to cold welding defects, indicating crystallinity's role in mechanical properties.

Key Points

A pronounced decline in tensile ductility was observed with increased severity of cold welding.
The study found a reduction in crystallinity in the molten zone significantly affected the tensile strength.
Microstructural analysis highlighted relationships between heat soak time and mechanical performance of the joints.
Non-destructive testing methods were proposed to address cold welding defect challenges in joint integrity.

Cite This Study

Shi et al. (2025) studied this question.

synapsesocial.com/papers/68e8619c7ef2f04ca37e43e1 https://doi.org/10.1115/pvp2025-153529

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Implication

Study reveals reduced ductility and tensile strength in polyethylene fusion joints due to cold welding defects, indicating crystallinity's role in mechanical properties.

Low Crystallinity Molten Zone Inducing Tensile Ductility Reduction in Polyethylene Pipe Butt Fusion Joints

Discussion

Member takes

Implication

Key Points

Cite This Study

Low Crystallinity Molten Zone Inducing Tensile Ductility Reduction in Polyethylene Pipe Butt Fusion Joints

Discussion

Member takes

Implication

Key Points

Cite This Study

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