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Research on Microstructure and Performance Mechanisms of Advanced Steels and...
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Research on Microstructure and Performance Mechanisms of Advanced Steels and Alloys

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: 30 September 2025 | Viewed by 2530

Special Issue Editor

Dr. Weina Zhang

E-Mail Website
Guest Editor
State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China
Interests: steels; alloys; materials processing; mechanical properties; microstructure; mechanism

Special Issue Information

Dear Colleagues,

Advanced steels and alloys, such as stainless steels, HSLA steels, high-manganese steels, Al alloys, Cu alloys, and high-entropy alloys, are important cornerstones for the development of modern industries, agriculture, livelihoods, the military, and other fields. At present, there is a demand for ways to reduce the weight, lower the cost, extend the service life, and improve the performance of steels and alloys components. The contradictory requirement of higher strength without compromising toughness has posed considerable challenges and led to the development of a large array of steels and alloys tailored for specific applications, such as aerospace, shipbuilding, marine engineering, automotive, electric power, and engineering machinery. To keep up with ever-increasing demands, it is necessary to develop high-performance steels with excellent mechanical properties and high-performance alloys with better physical and chemical properties. The chemical composition design, microstructure evolution, and manufacturing processes collectively determine the mechanical properties of the materials.

The main aim of the Special Issue is to discuss the topics of materials processing, manufacturing, mechanical properties, microstructure, mechanism, and applications in advanced steels and alloys. All of the advanced steels and alloys as well as composite materials in metals are of interest.

It is our pleasure to invite you to submit a manuscript for this Special Issue.

Dr. Weina Zhang
Guest Editor

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. Metals is an international peer-reviewed open access monthly 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

  • steels
  • alloys
  • materials processing
  • mechanical properties
  • microstructure
  • mechanism

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

10 pages, 2840 KiB  
Article
The Effect of Final Cooling Temperature on Nano Cu Precipitation in a Cu-Bearing High-Strength Low-Alloy Steel
by Haitao Cui, Haicheng Liang, Xinglong Sun, Yonghua Li, Zhanjie Gao and Jinsong Liu
Metals 2025, 15(2), 150; https://doi.org/10.3390/met15020150 - 1 Feb 2025
Viewed by 544
Abstract
Nano Cu precipitation plays a crucial role in significantly improving the performance of the Cu-bearing high-strength low-alloy steel. The final cooling temperature effects the transformation products of austenite during the continuous cooling process, as well as the nano precipitations of steel. This study [...] Read more.
Nano Cu precipitation plays a crucial role in significantly improving the performance of the Cu-bearing high-strength low-alloy steel. The final cooling temperature effects the transformation products of austenite during the continuous cooling process, as well as the nano precipitations of steel. This study investigated the microstructure and hardness at different final cooling temperatures (750, 700, 650, 600, 550, and 500 °C) using the MMS-300 thermal simulation experimental machine (Northeastern University, Shenyang, China) and Vickers hardness tester. The changes in microstructure and the phase transformation law of austenite were determined during continuous cooling and then analyzed. The precipitation reaction of nano Cu precipitation during continuous cooling was studied using transmission electron microscopy (TEM), revealing the precipitation state under different final cooling temperature conditions. The results showed that the precipitations led to an increase and then a decrease in the microhardness, and the microhardness reaches its peak at 550 °C. The precipitations changed from spherical to elliptical, and the size gradually increased when the final cooling temperature increased. Full article
(This article belongs to the Special Issue Research on Microstructure and Performance Mechanisms of Advanced Steels and Alloys)
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12 pages, 6264 KiB  
Article
Hot Deformation Behavior and Hot Processing Map of 50CrVA Spring Steel
by Yang Zhao, Jian Zheng, Zhi Liu and Liqing Chen
Metals 2024, 14(12), 1391; https://doi.org/10.3390/met14121391 - 4 Dec 2024
Viewed by 799
Abstract
It is important to explore the hot deformation behavior and establish the hot processing map of steel to design and optimize the hot rolling process. In this paper, 50CrVA spring steel was used as the experimental material. Single-pass compression tests were performed at [...] Read more.
It is important to explore the hot deformation behavior and establish the hot processing map of steel to design and optimize the hot rolling process. In this paper, 50CrVA spring steel was used as the experimental material. Single-pass compression tests were performed at 850–1150 °C and 0.01–5 s−1 on an MMS-300 thermo-mechanical simulation testing machine to investigate the hot deformation behavior and establish the hot processing map. The results show that as the strain rate increases and the deformation temperature decreases, the flow stress of 50CrVA spring steel increases. The constitutive equation of 50CrVA spring steel is ε˙=1.01×1014[sinh(0.0094σp)]4.53exp(−364,470RT). The dynamic recrystallization critical strain model is εc=4.19×10−3Z7.31×10−2. A hot processing map of 50CrVA spring steel was constructed to determine the plastic instability region and optimal hot working region. Full article
(This article belongs to the Special Issue Research on Microstructure and Performance Mechanisms of Advanced Steels and Alloys)
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18 pages, 7054 KiB  
Article
Effects of Ti Addition on Microstructure, Mechanical Properties and Corrosion Resistance of the Cu-Zn-Ni Alloy
by Xinglong Sun, Yulian Wang, Jinchuan Jie, Tingju Li, Zhigang Yuan, Haitao Cui and Jinsong Liu
Metals 2024, 14(12), 1360; https://doi.org/10.3390/met14121360 - 28 Nov 2024
Viewed by 817
Abstract
The effects of Ti addition on the microstructure, mechanical properties and corrosion resistance of the Cu-30Zn-6Ni-1.5Ti (wt.%) alloy were investigated in the present study. Microstructure analysis confirms that the Ni3Ti and NiTi phases are formed in the Cu-Zn-Ni-Ti alloy. Most of [...] Read more.
The effects of Ti addition on the microstructure, mechanical properties and corrosion resistance of the Cu-30Zn-6Ni-1.5Ti (wt.%) alloy were investigated in the present study. Microstructure analysis confirms that the Ni3Ti and NiTi phases are formed in the Cu-Zn-Ni-Ti alloy. Most of the Ni3Ti particles dissolve into the matrix, whereas NiTi particles remained after the solution treatment. Moreover, nano-sized Ni3Ti and Cu2NiZn phases are precipitated from the matrix during the aging process. The yield strength improvement of the studied alloy is attributed to the Orowan strengthening (accounting for 42.5% of the total yield strength), then the grain boundary strengthening (31.1%), the dislocation strengthening (16.9%), the twin boundary strengthening (5.0%) and the solid solution strengthening (0.5%). After cold rolling with 90% deformation and aging at 440 °C for 1 h, the designed alloy has a hardness of 327.1 HV, a yield strength of 1192 MPa, an ultimate tensile strength of 1297 MPa, an elongation of 1.8%, an electrical conductivity of 11.2% IACS and a corrosion rate of 2.8 μm/month in 3.5% NaCl solution. Full article
(This article belongs to the Special Issue Research on Microstructure and Performance Mechanisms of Advanced Steels and Alloys)
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