1T CT specimens are used to evaluate the fracture toughness of Chinese Q345R steel in the ductile-brittle transition regime by Master Curve method. Tensile tests, Charpy impact tests and drop-weight tests of Q345R steel are also carried out to get the ductile-brittleness transition temperature and nil-ductility transition temperature. Master Curves are compared with the empirical formulas adopted in ASME, API and BS codes. Results show that the reference temperature T0 values derived from single-temperature and multi-temperature method by 1T specimen are basically consistent. Master Curve can well envelop the fracture toughness and temperature curves derived from the empirical formulas, and is more economic and flexible than the K1C curve with sufficient conservation.
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ASME 2017 Pressure Vessels and Piping Conference
July 16–20, 2017
Waikoloa, Hawaii, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5799-1
PROCEEDINGS PAPER
Estimation of Q345R Fracture Toughness Based on Master Curve
Lele Gui,
Lele Gui
China Special Equipment Inspection and Research Institute, Beijing, China
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Tong Xu,
Tong Xu
China Special Equipment Inspection and Research Institute, Beijing, China
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Binan Shou,
Binan Shou
China Special Equipment Inspection and Research Institute, Beijing, China
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Haiyang Yu
Haiyang Yu
China Special Equipment Inspection and Research Institute, Beijing, China
Search for other works by this author on:
Lele Gui
China Special Equipment Inspection and Research Institute, Beijing, China
Tong Xu
China Special Equipment Inspection and Research Institute, Beijing, China
Binan Shou
China Special Equipment Inspection and Research Institute, Beijing, China
Haiyang Yu
China Special Equipment Inspection and Research Institute, Beijing, China
Paper No:
PVP2017-65484, V06AT06A045; 5 pages
Published Online:
October 26, 2017
Citation
Gui, L, Xu, T, Shou, B, & Yu, H. "Estimation of Q345R Fracture Toughness Based on Master Curve." Proceedings of the ASME 2017 Pressure Vessels and Piping Conference. Volume 6A: Materials and Fabrication. Waikoloa, Hawaii, USA. July 16–20, 2017. V06AT06A045. ASME. https://doi.org/10.1115/PVP2017-65484
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