CHANGES IN THE STRUCTURE AND PROPERTIES OF LOW-CARBON LOW-ALLOY PIPE STEELS UPON INOCULATION WITH REM

摘要

The influence of REM additives on the structure, mechanical properties and corrosion resistance of low-car bon low-alloy steels is studied. The effect of inoculation with rare-earth metals on the content of sulfur and oxygen in the steels and on the degree of their contamination with nonmetallic inclusions are investigated. The resistance of the steels to stress sulfide corrosion cracking, hydrogen cracking and total, local, carbon dioxide and bacterial corrosion is determined.