Abstract
1. The toughness of low-carbon (C<0.10%) high-manganese (6–9%) steel depends not only on the heat treatment but also the melting and deoxidizing conditions. 2. The optimal heat treatment, ensuring the highest impact toughness, is tempering in the intercritical range, which results in a structure consisting of a fine mixture of ferrite and austenite highly alloyed with manganese as well as a small amount of ɛ-phase. 3. To obtain a high impact toughness, and particularly a low cold brittleness threshold, it is necessary to neutralize the harmful effect of the elevated nitrogen concentration (up to 0.018%) in such steels by adding nitride-forming elements — aluminum (0.04–0.07%) or titanium (0.04–0.07%). 4. To obtain a high impact toughness it is important not only to combine the nitrogen into stable nitrides but also to use melting and crystallizing procedures ensuring finely dispersed and evenly distributed nitrides. This can be achieved by electroslag remelting.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
