Quantification of Splitting in X80 Pipeline Steel

Autor: Alexey Gervasyev, Roumen Petrov, Chunyong Huo, Igor Pyshmintsev, Frank J. Barbaro
Rok vydání: 2018
Předmět:
Zdroj: Volume 3: Operations, Monitoring, and Maintenance; Materials and Joining.
DOI: 10.1115/ipc2018-78389
Popis: The results of in-depth analysis of microstructure and crystallographic texture of several industrial batches of line pipes with known full-scale burst test results are presented. Several microstructural features promoting splitting are highlighted and quantified using electron back-scattered diffraction (EBSD) data. The actual splitting intensity is evaluated by means of Charpy tests in the direction of pipe wall thickness (Z-direction) and correlates with the microstructural parameters determined by EBSD analysis. This knowledge can be used in the design of thermo-mechanical controlled processing (TMCP) dedicated to production of splitting-free steel.
Databáze: OpenAIRE