Artigos Técnicos
Microstructural determination of CO2 stress corrosion cracking in high-strength carbono steel wires for flexible pipes
Abstract: The susceptibility of high-strength carbon steel wires to CO2-stress corrosion cracking (CO2-SCC) was evaluated through electrochemical monitoring, alternating load tests, EBSD, SEM, and Raman spectroscopy under identical service-simulated conditions (10.6 bar CO₂, 40 ◦C, 80 % yield stress). Only the eutectoid Steel A exhibited SCC, associated with spheroidized cementite Leia mais…