Phase Transformation and Microstructure Evolution of Alloys

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Crystalline Metals and Alloys".

Deadline for manuscript submissions: 25 December 2025 | Viewed by 250

Special Issue Editors


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Guest Editor
School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
Interests: steels; phase transformation; plastic deformation; surface engineering; corrosion

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Guest Editor
505B Materials Blg#A, Shanghai Jiao Tong University, 800 Dongchuan Rd, Minhang District, Shanghai, China
Interests: structural materials; phase transformation; strengthening and toughening; hydrogen embrittlement; stress corrosion cracking

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Guest Editor
Scientific Center for Optical and Electron Microscopy (ScopeM), Laboratory for Nanometallurgy (LNM), Swiss Federal Institute of Technology (ETH) Zürich, HCI G507, Vladimir-Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
Interests: phase reaction; phase transformations in metals and alloys; defect structure in crystals; thin films; microstructure characterization by TEM/STEM; elemental content and composition analyses of compounds by spectroscopic techniques; in-situ TEM; oxygen evolution and catalytic reactions by in-situ TEM
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Special Issue Information

Dear Colleagues,

Phase transformations in alloys involve changes in the atomic structure and arrangement, leading to alterations in microstructure and, consequently, material properties. Understanding these transformations is crucial for controlling the final properties of steels and alloys. This Special Issue will underline the most recent discoveries and progress in phase transformation and microstructure evolution of metals and alloys. Topics of interest include, but are not limited to, green steel, phase transformation, hydrogen embrittlement, microstructure evolution, mechanical properties, strengthening mechanisms, precipitates, surface engineering, corrosion, and thermodynamics. We believe that this Special Issue will serve as an effective platform for presenting new progress in the related areas of alloys.

Prof. Dr. Bo Wang
Dr. Yuantao Xu
Dr. Alla S. Sologubenko
Guest Editors

Manuscript Submission Information

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Keywords

  • metals and alloys
  • phase transformation
  • hydrogen embrittlement
  • microstructure evolution
  • stress corrosion cracking
  • mechanical property
  • strengthening and toughening
  • precipitates
  • surface engineering
  • corrosion
  • thermodynamics

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Published Papers (1 paper)

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Research

22 pages, 4820 KiB  
Article
Microstructure and Properties of Corrosion-Resistant Steel Produced by CASTRIP
by Kai Lei, Long Chen, Hengchang Lu, Xintong Lian, Qingxiao Feng, Hualong Li and Han Dong
Crystals 2025, 15(7), 595; https://doi.org/10.3390/cryst15070595 - 24 Jun 2025
Viewed by 191
Abstract
The CASTRIP process is an innovative method for producing flat rolled low-carbon and low-alloy steel at very thin thicknesses. By casting steel close to its final dimensions, enormous savings in time and energy can be realized. In this paper, an ultra-high-strength low-alloy corrosion-resistant [...] Read more.
The CASTRIP process is an innovative method for producing flat rolled low-carbon and low-alloy steel at very thin thicknesses. By casting steel close to its final dimensions, enormous savings in time and energy can be realized. In this paper, an ultra-high-strength low-alloy corrosion-resistant steel was produced through the CASTRIP process. Microstructure and properties were investigated by means of optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), laser confocal microscopy (LSCM), electron backscattered diffraction (EBSD), and tensile testing. The results show that the microstructure is mainly composed of polygonal ferrite, bainite ferrite, and acicular ferrite. The bainite ferrite forms parallel lath bundles nucleating at austenite grain boundaries, propagating perpendicularly into the parent grains. The acicular ferrite exhibits a cross-interlocked morphology preferentially nucleating at oxide/sulfide inclusions. Microstructural characterization confirms that the phase transformation of acicular ferrite and bainite ferrite introduces high-density dislocations, identified as the primary strengthening mechanism. Under the CASTRIP process, corrosion-resistant elements such as Cu, P, Sb, and Nb are completely dissolved in the matrix without grain boundary segregation, thereby contributing to solid solution strengthening. Full article
(This article belongs to the Special Issue Phase Transformation and Microstructure Evolution of Alloys)
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