Microstructure, Tensile Properties and Creep Behavior of Metallic Materials
A special issue of Metals (ISSN 2075-4701).
Deadline for manuscript submissions: 30 April 2025 | Viewed by 206
Special Issue Editors
Interests: creep; stress relaxation; constitutive modeling; microstructural characterization
Interests: creep behavior; multi-scale modeling; microstructural evolution
Interests: complicate component; creep age forming; aluminum alloy
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Under sustained stress, metallic materials undergo creep deformation at a low strain rate, which can been seen in various industries. For example, in the field of forming manufacturing, creep can be used to shape large sheet metal components, while for the supercritical power generating units, creep at high temperatures can reduce the reliability of components. During the creep process, time-varying dislocations, grains, second phases and other microstructures are interact, making the microstructural evolution extremely complex and affecting the macroscopic mechanical properties of the metallic material. Understanding the microscopic mechanism of this process is of great significance for the effective regulation of material properties and reliable prediction of material life.
In this Special Issue, we welcome research on the creep behavior of metallic materials ranging from their microstructural evolution to their macroscopic properties. Cross-scale analysis is of particular interest.
Dr. Youliang Yang
Dr. Ziyao Ma
Prof. Dr. Lihua Zhan
Guest Editors
Manuscript Submission Information
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Keywords
- creep behavior
- microstructural evolution
- multi-scale modeling
- dislocations
- grains
- second phases
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Planned Papers
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Strong strain hardening in a cost-effective Fe60Cr15Ni16Al9 medium entropy alloy via carbon alloying
Authors: Xinghua Zhang; Shilin Feng; Yongfu Cai; Zhimin Yang; Ran Wei; Jianwei Tang
Affiliation: Zhengzhou University, Zhengzhou, 450001, China
Abstract: The influence of carbon addition on the microstructure and room-temperature mechanical properties of a FCC+BCC dual phase Fe60Cr15Ni16Al9 medium entropy alloy (MEA) was investigated. The results show that the addition of carbon increases the volume fraction of FCC phase and the strain hardening ability, resulting in a superior combination of an ultimate tensile strength (UTS) of 1340 MPa and an elongation of 28%. Specifically, the current MEA exhibits a higher ratio of UTS-to-raw-material prices compared to the majority of Fe-based MEAs and medium/high entropy alloys. The experimental and molecular dynamics simulation results show that the stronger strain hardening induced by carbon is primarily attributable to the stronger transformation-induced plasticity effects and higher dislocation density.
