Energy / Processes
Technical Paper

Crack nucleation and propagation in high strength welded pipes

International Seminar on Welding of High Strength Pipeline Steels

The effect of local embrittlement of the weld joint on the structural strength of high-strength pipe is discussed in the paper. The results of hydraulic tests of Х70 grade pipes having a longitudinal surface notch in the base metal and weld joint are presented. By using examples of full-scale burst tests, features of ductile fracture propagation in spiral pipes are displayed. (AU) Copyright © 2013 Companhia Brasileira de Metalurgia e Mineração (CBMM) All Rights Reserved
Technical Paper (PDF 2,39 MB)