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Crystals
Special Issues
Microstructure and Properties of Metals and Alloys
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Microstructure and Properties of Metals and Alloys

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

Deadline for manuscript submissions: 31 December 2024 | Viewed by 565

Special Issue Editors

Dr. Zhongquan Zhang

E-Mail Website
Guest Editor
College of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China
Interests: microstructure; internal stress; wear resistance; corrosion resistance; nano metal and alloy coatings
Prof. Dr. Shouxun Ji

E-Mail Website
Guest Editor
Brunel Centre for Advanced Solidification Technology (BCAST), Brunel University London, Uxbridge, Middlesex UB8 3PH, UK
Interests: solidification of metallic alloys; aluminum alloys; magnesium alloys; phase transformation; microstructure and mechanical properties; dissimilar metals and alloys: microstructure and mechanical properties; laser welding
Special Issues, Collections and Topics in MDPI journals
Dr. Ze Chai

E-Mail Website
Guest Editor Assistant
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
Interests: metals/alloys; coatings/film; deposition; additive manufacturing; microstructure; mechanical properties; corrosion; nanocrystalline; defective lattice; microstrain

Special Issue Information

Dear Colleagues, 

Researchers and engineers in the materials science community have been devoted to enhancing material properties governed by material structures. This Special Issue invites research focusing on the review, investigation, and innovations of the microscopic structure and properties of ferrous and non-ferrous metals/alloys. Structures widely cover the phase constituent, grain morphology, crystallographic orientation, grain boundary, crystal lattice, etc., and properties include, but are not limited to, mechanical, magnetic, electrical, and anti-corrosive performances. Topics regarding advanced preparation and characterization techniques, tailored structure or design, numerical simulation, thermodynamics, kinetics, and the relationship between processing, microstructures, and properties are also highly desirable. 

Dr. Zhongquan Zhang
Prof. Dr. Shouxun Ji
Guest Editors

Dr. Ze Chai
Guest Editor Assistant

Manuscript Submission Information

Manuscripts should be submitted online at mdpi.longhoe.net 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. Crystals 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 2100 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

  • metals/alloys
  • bulk materials
  • coatings
  • films
  • microstructure
  • phase
  • grain
  • interface
  • lattice
  • dislocation
  • vacancy
  • diffusion
  • mechanical property
  • strengthening
  • deformation
  • strain
  • electrical property
  • anti-corrosive property
  • magnetic property

Published Papers (1 paper)

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Research

20 pages, 3405 KiB  
Article
Effect of Nb and B on the Precipitation Behaviors in Al-Ti-Nb Balanced-Ratio Ni-Based Superalloy: A Phase-Field Study
by Na Ta, Hongguang Zhou, Cong Zhang, Ruijie Zhang and Lijun Zhang
Crystals 2024, 14(7), 614; https://doi.org/10.3390/cryst14070614 - 30 Jun 2024
Viewed by 294
Abstract
In this paper, quantitative two-dimensional (2-D) phase-field simulations were performed to gain insight into the effects of B and Nb for Al-Ti-Nb balanced-ratio GH4742 alloys. The microstructure evolution during the precipitation process was simulated using the MICRESS (MICRostructure Evolution Simulation Software) package developed [...] Read more.
In this paper, quantitative two-dimensional (2-D) phase-field simulations were performed to gain insight into the effects of B and Nb for Al-Ti-Nb balanced-ratio GH4742 alloys. The microstructure evolution during the precipitation process was simulated using the MICRESS (MICRostructure Evolution Simulation Software) package developed in the formalism of the multi-phase field model. The coupling to CALPHAD (CALculation of PHAse Diagram) thermodynamic databases was realized via the TQ interface. The morphological evolution, concentration distribution, and thermodynamic properties were extensively analyzed. It is indicated that a higher Nb content contributes to a faster precipitation rate and higher amounts and the smaller precipitate size of the γ′ phase, contributing to better mechanical properties. The segregation of the W element in γ′ precipitate due to its sluggish diffusion effect has also been observed. Higher temperatures and lower B contents accelerate the dissolution of boride and reduce the precipitation of borides. With the increased addition of B, the formation of borides may have a pinning effect on the grain boundary to hinder the kinetic process. In addition, borides are prone to precipitate around the interface rather than in the bulk phase. Once the M3B2 borides nucleate, they grow in the consumption of γ′ phases. Full article
(This article belongs to the Special Issue Microstructure and Properties of Metals and Alloys)
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