Abstract
Abstract The effects of chemical compositions, rolling conditions, and homogenization treatment on hydrogen induced cracking (HIC) have been studied metallurgically using laboratory heats of chemical compositions corresponding to those of the center segregation zones in continuous cast slabs. The hardness of the center segregation zones in steel plates is one of the predominant factors affecting the HIC susceptibility of high-strength line pipe steels. An increase of the carbon equivalent (Ceq) or phosphorus content hardens the center segregation zones in conventional carbon steels produced by the controlled rolling (CR) process. Lowering the carbon content to the range of 0.01 to 0.05% markedly decreases the hardness of center segregation zone and reduces the HIC susceptibility, regardless of the increases in other alloy elements. Hot rolling at relatively lower temperature increases the hardness of the center segregation zone and results in a slightly high HIC susceptibility. The design of the chemical ...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.