Alloy Steels—Properties and Applications

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

Deadline for manuscript submissions: closed (31 May 2021) | Viewed by 2006

Special Issue Editor


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Guest Editor
Department of Mechanical Engineering, Saginaw Valley State University, University Center, MI, USA
Interests: ferrous molten metal processing; nondestructive testing; failure analysis
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Special Issue Information

Dear Colleagues,

Alloy steels have a broad range of uses. Most papers on developing these steels focus on their microstructure and properties; however, interest in these alloys stems from their application. It is the use of alloy steels to solve industrial problems in automotive, railroad, industrial equipment, defense, aerospace, and mining that provides their value and spurs development. Many of these industries require improved versions of existing alloys and new ones to continue the relentless drive for improvement. The combination of strength, ductility, wear resistance, and processing options available in alloy steels provides a large toolbox for the industrial metallurgist to use. The discovery of TRIP/TWIP mechanisms in these steels, which are not fully understood, provides a new opportunity to create innovative structures or improve performance and energy efficiency in older designs. The goal of this Special Issue is to provide an outlet for discussing alloy steel properties and their application.

We are looking for papers related to the properties and applications of alloy steels. Any alloy steel system is welcome (i.e., stainless steels, chromoly steels, high manganese steels, tool steels, etc.). The goal is to collect a series of papers that look at the property requirements for an application and how the processing or composition must be changed to meet those applications. Papers examining the manufacturability of a new alloy system to meet a target industry are also welcome. Authors conducting research on failure modes and their mitigation for an application are welcome. The open-access model used by Metal should allow the papers in this Special Issue to continue influencing development for a long time and reach audiences that do not have access to large institutional databases.  Please consider submitting your work to this Special Issue.

Prof. Dr. Robert B. Tuttle
Guest Editor

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Keywords

  • Alloy steels
  • TWIP/TRIP
  • Automotive
  • Industrial equipment
  • Railroad
  • Aerospace
  • Nickle-chromium steels
  • Chromium-molybdenum steels
  • Wear

Published Papers (1 paper)

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Research

18 pages, 5321 KiB  
Article
Comparison of Rare Earth Refinement in 4130 and HY100
by Robert Tuttle
Metals 2021, 11(4), 540; https://doi.org/10.3390/met11040540 - 26 Mar 2021
Cited by 4 | Viewed by 1594
Abstract
Solidification based grain refinement has gained wide interest by both researchers and industry. This method provides a route for refinement in processes where thermomechanical approaches are ineffective. Prior research into 4130 and HY100 found very different responses when rare earth additions were made. [...] Read more.
Solidification based grain refinement has gained wide interest by both researchers and industry. This method provides a route for refinement in processes where thermomechanical approaches are ineffective. Prior research into 4130 and HY100 found very different responses when rare earth additions were made. The 4130 was effectively refined while HY100 showed no response. The cause of this difference was not determined. The research presented in this paper examined heats of 4130 and HY100 with rare earth silicide or EGR additions. Characterization included macrostructure examination, mechanical testing, thermal analysis, and electron microscopy. Refinement was observed only in the treated 4130 heats and corresponded to an increase in the peritectic temperature. The HY100 heats had no changes in macrostructure or solidification reactions. Rare earth containing inclusions of similar compositions were observed in the treated 4130 and HY100 heats. These inclusions appear to be a good fit for austenite based on the 4130 data. It was proposed that the unresponsiveness of HY100 was due to the strong segregation of nickel before the peritectic in that alloy. Nickel promotes austenite, and its segregation may provide a stronger driving force for its formation than the energy barrier reduction caused by the presence of rare earth inclusions. Full article
(This article belongs to the Special Issue Alloy Steels—Properties and Applications)
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