Small specimen creep test techniques have been widely applied in the creep properties assessment of materials for the equipment in-service. In order to acquire the creep data accurately and conveniently, the creep test method with small cantilever beam specimens is proposed. On the basis of Norton-Bailey creep law, analytical creep model for the cantilever beam specimen is derived. With this model, the load can be converted to equivalent uniaxial stress and the displacement rate can be converted to equivalent uniaxial strain rate. The creep properties of Cr-Mo steel are assessed by the cantilever beam specimens creep tests. And the creep parameters are evaluated, which are compared to the uniaxial creep parameters. The results show that parameters obtained from the cantilever beam tests correspond reasonably well with those from uniaxial tests. It proves that the primary and secondary creep properties can be assessed by the cantilever beam specimen tests.
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ASME 2018 Pressure Vessels and Piping Conference
July 15–20, 2018
Prague, Czech Republic
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5168-5
PROCEEDINGS PAPER
Creep Properties Assessment of Materials by a Small Cantilever Beam Specimen
Fakun Zhuang,
Fakun Zhuang
China Special Equipment Inspection and Research Institute, Beijing, China
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Shantung Tu,
Shantung Tu
East China University of Science and Technology, Shanghai, China
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Guoshan Xie,
Guoshan Xie
China Special Equipment Inspection and Research Institute, Beijing, China
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Shanshan Shao,
Shanshan Shao
China Special Equipment Inspection and Research Institute, Beijing, China
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Luowei Cao
Luowei Cao
China Special Equipment Inspection and Research Institute, Beijing, China
Search for other works by this author on:
Fakun Zhuang
China Special Equipment Inspection and Research Institute, Beijing, China
Shantung Tu
East China University of Science and Technology, Shanghai, China
Guoshan Xie
China Special Equipment Inspection and Research Institute, Beijing, China
Shanshan Shao
China Special Equipment Inspection and Research Institute, Beijing, China
Luowei Cao
China Special Equipment Inspection and Research Institute, Beijing, China
Paper No:
PVP2018-84135, V06BT06A062; 6 pages
Published Online:
October 26, 2018
Citation
Zhuang, F, Tu, S, Xie, G, Shao, S, & Cao, L. "Creep Properties Assessment of Materials by a Small Cantilever Beam Specimen." Proceedings of the ASME 2018 Pressure Vessels and Piping Conference. Volume 6B: Materials and Fabrication. Prague, Czech Republic. July 15–20, 2018. V06BT06A062. ASME. https://doi.org/10.1115/PVP2018-84135
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