Special Issue "Advanced High Strength Steels by Quenching and Partitioning"

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: 30 September 2019

Special Issue Editors

Guest Editor
Dr. Ilchat Sabirov

IMDEA Materials Institute, Calle Eric Kandel 2, Getafe, 28906 Madrid, Spain
Website | E-Mail
Interests: physical simulation of metallurgical processes; thermo-mechanical processing of metallic materials; processing-structure-property relationship in metallic materials
Guest Editor
Prof. Maria J. Santofimia

Department of Materials Science and Engineering, Technical University of Delft, Mekelweg 2, 2628 CD Delft, The Netherlands
Website | E-Mail
Interests: solid-solid phase transformations in metals: theoretical analysis, experimental studies and simulations; microstructural control during processing in metals; relationships between microstructure and properties in metallic materials; design of novel metallic alloys
Guest Editor
Prof. Roumen Petrov

Department of Electrical Energy, Metals, Mechanical Constructions & Systems,Ghent University, B-9052 Ghent, Belgium
Website | E-Mail
Interests: thermal and thermo-mechanical processing of metallic materials; microstructural characterization including texture -SEM, EBSD, TEM, XRD; processing-structure-property relationship in metallic materials; damage and fracture

Special Issue Information

Dear Colleagues,

Quenched and partitioned (Q&P) steels are complex, sophisticated materials, with carefully-selected chemical compositions and multiphase microstructures resulting from precisely controlled heating and cooling processes. The concept of the quenching and partitioning process was first proposed in 2003 by Speer and his colleagues. The key treatment parameters include annealing temperature, quenching temperature, partitioning temperature and time. Manipulation with these parameters along with the steel chemistry leads to a variety of multiphase microstructures showing a wide range of properties.

The principles of microstructural design in Q&P steels for improvement of their mechanical strength with no (or very low) reduction of tensile ductility have been understood to a satisfactory level by now. However, the steel performance for a specific industrial application is not governed just by its mechanical strength and ductility under uniaxial tension. Enhanced mechanical properties need to be combined with improved performance properties (such as fatigue, fracture, weldability, galvanability, etc.), which have been studied to a lesser extent.

For this Special Issue in Metals, we welcome research articles and reviews addressing theoretical and experimental design of steels and Q&P process, microstructure of Q&P treated steels, their mechanical and performance properties, Q&P process–microstructure –properties relationship, as well as examples of their industrial applications. The Special Issue is oriented to researchers from universities and industrial research centers and to steel producers directly involved in the production and product development.

Dr. Ilchat Sabirov
Prof. Maria J. Santofimia
Prof. Roumen Petrov
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 papers will be 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 1200 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

  • advanced high strength steels
  • quenching and partitioning
  • microstructure
  • retained austenite
  • mechanical properties
  • performance properties

Published Papers (2 papers)

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Research

Open AccessArticle Superior Mechanical Properties and Work-Hardening Ability of Ultrafine-Grained Quenched and Partitioned Steels Processed by a Novel Approach Involving Asymmetric Hot Rolling
Metals 2018, 8(11), 872; https://doi.org/10.3390/met8110872
Received: 8 October 2018 / Revised: 20 October 2018 / Accepted: 23 October 2018 / Published: 25 October 2018
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Abstract
An approach is proposed to enhance the mechanical properties and work-hardening (WH) ability of low-alloy steels. Using asymmetric hot rolling (AHR) and subsequent direct quenching (DQ) prior to the quenching and partitioning (Q&P) process, an ultrafine-grained Q&P steel with excellent combination of tensile
[...] Read more.
An approach is proposed to enhance the mechanical properties and work-hardening (WH) ability of low-alloy steels. Using asymmetric hot rolling (AHR) and subsequent direct quenching (DQ) prior to the quenching and partitioning (Q&P) process, an ultrafine-grained Q&P steel with excellent combination of tensile strength of ~1000 MPa and total elongation of ~35% was obtained, which exhibited high WH exponent at higher strain induced by the higher volume fraction and higher stability of film-like retained austenite located between the martensite laths. Full article
(This article belongs to the Special Issue Advanced High Strength Steels by Quenching and Partitioning)
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Open AccessArticle A Study of the Optimum Quenching Temperature of Steels with Various Hot Rolling Microstructures after Cold Rolling, Quenching and Partitioning Treatment
Metals 2018, 8(8), 579; https://doi.org/10.3390/met8080579
Received: 4 June 2018 / Revised: 9 July 2018 / Accepted: 24 July 2018 / Published: 26 July 2018
Cited by 1 | PDF Full-text (3602 KB) | HTML Full-text | XML Full-text
Abstract
Quenching and partitioning (Q&P) processes were applied to a cold-rolled high strength steel (0.19C-1.26Si-2.82Mn-0.92Ni, wt %). The effects of the prior hot-rolled microstructure on the optimum quenching temperature of the studied steels were systematically investigated. The microstructure was analyzed by means of transmission
[...] Read more.
Quenching and partitioning (Q&P) processes were applied to a cold-rolled high strength steel (0.19C-1.26Si-2.82Mn-0.92Ni, wt %). The effects of the prior hot-rolled microstructure on the optimum quenching temperature of the studied steels were systematically investigated. The microstructure was analyzed by means of transmission electron microscope (TEM), electron backscatter diffraction (EBSD) and X-ray diffraction (XRD). Compared with the ferrite pearlite mixture matrix, the lower martensite start (Ms) temperature and smaller prior austenite grain size in the cold-rolled martensite matrix are the main reasons for the optimum quenching temperature shifting to a lower temperature in the Q&P steels. We found that an empirical formula that only considers the influence of the alloy composition in the calculation of the Ms temperature will cause a certain interference to the pre-determined optimum quenching temperature of the Q&P steel. Full article
(This article belongs to the Special Issue Advanced High Strength Steels by Quenching and Partitioning)
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Figure 1

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