Recent Innovations in Alloy Design and Processing of Microalloyed Steels
A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Casting, Forming and Heat Treatment".
Deadline for manuscript submissions: closed (31 October 2021) | Viewed by 9503
Special Issue Editor
Interests: microalloyed steel; thermo-mechanical processing; microstructure–property relationships; welding; hydrogen embrittlement; mining; sustainability
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Microalloyed steels have been produced globally by the steel industry for around 50 years at an ever-increasing volume. The metallurgical fundaments of microalloying were established in the 1960s while significant industrial implementation started in the 1970s. Pipeline steels with superior combinations of strength and toughness emerged as the first major application, followed by structural steels and automotive steels. The application of microalloying in steels is relevant to flat products such as plate and strip, long products such as beams and sections, engineering steels, castings, as well as forgings. The well-known metallurgical effects are related to microstructural refinement and precipitation of microalloy particles in the form of carbides or nitrides. Utilizing these mechanisms have allowed designing low-carbon steels with high strength while having excellent weldability and formability.
Over the years, the knowledge on the physical metallurgy of microalloys has been steadily increasing as new characterization techniques have allowed deeper insights into the specific functionality of microalloying elements and their interactions with other alloying elements. This has initiated new applications for microalloys in areas where they have not previously been considered. A prominent example is medium and higher carbon steels, in which microalloying elements are increasingly used for improving the resistance against hydrogen embrittlement. Furthermore, the ongoing quest for more efficient production and manufacturing processes offers new opportunities for microalloying.
This Special Issue invites authors to report on recent innovations in alloy design and processing of microalloyed steels. Contributions should focus on physical metallurgical effects and the interaction with processing and application properties. Reviews reflecting on the state-of-the-art as developed over the more than five decades of microalloying are also welcome.
Prof. Dr. Hardy Mohrbacher
Guest Editor
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Keywords
- microstructural control
- grain refinement
- precipitation
- solute drag
- segregation
- hydrogen embrittlement
- diffusivity
- recrystallization delay
- weldability
- formability