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Processing, Microstructure and Properties Relationships of Steels

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Materials Characterization".

Deadline for manuscript submissions: 20 June 2024 | Viewed by 589

Special Issue Editors


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Guest Editor
College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 0631200, China
Interests: advanced high-strength steels; phase transformations; mechanical behaviors; microstructure characterization; synchrotron radiation; heat treatment
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Guest Editor
Center for Advanced Solidification Technology (CAST), School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
Interests: special steel; phase transformation; recrystallization; microstructure characterization; mechanical properties; atmospheric corrosion; inclusion modification

Special Issue Information

Dear Colleagues,

Steel has wide applications in automobiles, high-speed air or ground transportation, clean energy, and more advanced space exploration techniques. Designing and manufacturing steel for today’s modern society demands a comprehensive understanding of the complex relationships among processing, microstructures, inclusions, and mechanical properties. Present-day research engages significantly in engineering the microstructure to improve the mechanical properties of steels. Advanced materials characterization techniques provide opportunities for obtaining microstructure information from the micro- to nanoscale of steels processed by various technologies. Investigating the relationships between processing, microstructure evolution, and the mechanical properties of steels is of great significance for promoting the development and application of steel in both academia and industry.

This Special Issue aims to cover the recent progress and new developments in the relationships among the processing, microstructure, and mechanical properties of steel. The articles presented in this Special Issue will cover, but are not limited to, the following topics: materials design, processing technologies, heat treatment, advanced characterization techniques, phase transformation, recrystallization behavior, mechanical properties, corrosion resistance, and inclusion modification.

We kindly invite you to submit a manuscript for publication in this Special Issue. Full papers, communications, and reviews are all welcome.

Dr. Minghe Zhang
Dr. Xiangyu Xu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • materials design
  • processing technologies
  • heat treatment
  • advanced characterization techniques
  • phase transformation
  • recrystallization behaviour
  • mechanical properties
  • corrosion resistance
  • inclusion modification

Published Papers (1 paper)

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Research

13 pages, 6821 KiB  
Article
Synergistic Effects of Boron and Rare Earth Elements on the Microstructure and Stress Rupture Properties in a Ni-Based Superalloy
by Qiang Tian, Shuo Huang, Heyong Qin, Ran Duan, Chong Wang and Xintong Lian
Materials 2024, 17(9), 2007; https://doi.org/10.3390/ma17092007 - 25 Apr 2024
Viewed by 384
Abstract
The synergistic effects of boron (B) and rare earth (RE) elements on the microstructure and stress rupture properties were investigated in a Ni-based superalloy. The stress rupture lifetime at 650 °C/873 MPa significantly increased with the addition of B as a single element. [...] Read more.
The synergistic effects of boron (B) and rare earth (RE) elements on the microstructure and stress rupture properties were investigated in a Ni-based superalloy. The stress rupture lifetime at 650 °C/873 MPa significantly increased with the addition of B as a single element. Furthermore, the stress rupture lifetime reached its peak (303 h), with a certain amount of B and RE added together in test alloys. Although the grain size and morphology of the γ′ phase varied a little with the change in B and RE addition, they were not considered to be the main reasons for stress rupture performance. The enhancement in stress rupture lifetime was mostly attributed to the segregation of the B and RE elements, which increased the binding force of the grain boundary and improved its strength and plasticity. In addition, the enrichment of B and RE inhabited the precipitation of carbides along grain boundaries. Furthermore, nano-scale RE precipitates containing sulfur (S) and phosphorus (P) were observed to be distributed along the grain boundaries. The purification of grain boundaries by B and RE elements was favorable to further improve the stress rupture properties. Full article
(This article belongs to the Special Issue Processing, Microstructure and Properties Relationships of Steels)
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