Transverse tension testing was carried out on an X80 grade linepipe to investigate the deformation behavior and the evolution of microstructure by means of SEM-EBSD (Electron Backscattered Diffraction) technique. Test results show that uniform elongation could achieve up to 7% in transverse tension for an X80 linepipe. Microstructural analysis shows that primary equiaxed ferrite grains obviously changed after the tension test to elongate along the length of pipeline body, but the substructure did not increase much revealing that the ferrite in X80 steel could contribute to a certain extent for ductile deformation. Orientation imaging of EBSD analysis displays that the texture components, such as γ-texture, and a little Goss and Copper texture, occurred after deformation. Otherwise, a small amount of primary α-texture still remains. It can be recognized that X80 has good deformational stability.
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2010 8th International Pipeline Conference
September 27–October 1, 2010
Calgary, Alberta, Canada
Conference Sponsors:
- International Petroleum Technology Institute and the Pipeline Division
ISBN:
978-0-7918-4421-2
PROCEEDINGS PAPER
EBSD Study on Transverse Tensile X80 Grade Pipeline Steel
Lingkang Ji
,
Lingkang Ji
Xi’an Jiaotong University; CNPC Tubular Goods Research Institute, Xi’an, China
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Li Meng
,
Li Meng
University of Science & Technology Beijing, Beijing, China
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Yang Li
,
Yang Li
CNPC Tubular Goods Research Institute, Xi’an, China
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Chunyong Huo
,
Chunyong Huo
CNPC Tubular Goods Research Institute, Xi’an, China
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Yaorong Feng
Yaorong Feng
CNPC Tubular Goods Research Institute, Xi’an, China
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Lingkang Ji
Xi’an Jiaotong University; CNPC Tubular Goods Research Institute, Xi’an, China
Li Meng
University of Science & Technology Beijing, Beijing, China
Yang Li
CNPC Tubular Goods Research Institute, Xi’an, China
Chunyong Huo
CNPC Tubular Goods Research Institute, Xi’an, China
Yaorong Feng
CNPC Tubular Goods Research Institute, Xi’an, China
Paper No:
IPC2010-31251, pp. 447-452; 6 pages
Published Online:
April 4, 2011
Citation
Ji, L, Meng, L, Li, Y, Huo, C, & Feng, Y. "EBSD Study on Transverse Tensile X80 Grade Pipeline Steel." Proceedings of the 2010 8th International Pipeline Conference. 2010 8th International Pipeline Conference, Volume 2. Calgary, Alberta, Canada. September 27–October 1, 2010. pp. 447-452. ASME. https://doi.org/10.1115/IPC2010-31251
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