Published since January 1, 1949

HTM Journal of Heat Treatment and Materials

Zeitschrift für Werkstoffe, Wärmebehandlung, Fertigung

ISSN: 2194-1831

Editors-in-chief: Herwig Altena, Olaf Keßler, Marcel A. J. Somers

About this journal

HTM is a bilingual (German-English) independently assessed and periodical standard publication that provides reports on all aspects of heat treatment and material technology in research and production. By publishing trend-setting contributions to research and practical experience reports, HTM helps in answering scientific questions as well as regarding investment decisions in the industry. All articles are subject to thorough, independent peer review.
HTM is the official organ of AWT – the Association of Heat Treatment and Materials Technology.

Abstracting and Indexing

HTM Journal of Heat Treatment and Materials is covered by the following services:

Astrophysics Data System (ADS)
SCImago (SJR)
SCOPUS
Web of Science - Emerging Sources Citation Index
X-MOL

Supplementary Materials

Topics

External Links

Volume 77 Issue 5

October 2022

Publicly Available October 11, 2022

Contents / Inhalt

Page range: 317-318

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Publicly Available October 11, 2022

Challenges of Numerical Simulation Models for Induction Surface Hardening of Large Bearing Rings

H. Schöning, M. Kadanik, M. Reich, S. Petersen, O. Kessler

Page range: 319-335

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Abstract

Induction hardening of large bearing rings is a very challenging procedure due to the complex physical processes and their interactions, which need to be properly controlled to produce components meeting the imposed requirements of e.g. wind turbines. The different process parameters significantly alter the resulting microstructures and properties of such a bearing ring. The evolution of numerical simulations in the last decades allows the modelling of processes with a growing complexity. In this work, the challenges of a simulation model for induction surface hardening are shown and discussed. Besides the theoretical background of the interacting physical fields and a brief note about available software packages, the paper focusses on the elaboration of a necessary material database and on the specific problems of induction scan hardening processes for large bearing rings.

October 11, 2022

Rapid Screening of the Mechanical Properties of 13 wt%Cr Steels with Uncharted Combinations of C and N Contents

H. Mahdavi, Ö. C. Kücükyildiz, K. V. Dahl, M. A. J. Somers, K. Poulios, T. L. Christiansen, M. Villa

Page range: 336-356

Abstract

Stainless steels containing both C and N have unique characteristics while requiring unconventional manufacturing methods. This latter feature also translates into a lack of systematic investigations into their properties. In this work, a series of 13 wt%Cr steels with various interstitial solid solutions of C and N was synthesized by high temperature solution nitriding, HTSN, of commercial 13 wt%Cr martensitic steels. Light optical microscopy was applied to reveal the microstructural features, which consisted of a combination of martensite and austenite in various ratios depending on the C and N content. The mechanical response was characterized by nanoindentation. Data analysis assumed a fixed hardening exponent and provided an estimate of the yield strength and Young’s modulus of the synthesized steels and their microstructural components. The comparison with literature data indicated that this estimate is sound for martensite, while the data for austenite suggests an underestimation of the hardening exponent for this phase. The investigation demonstrates the potential of HTSN for the synthesis of novel 13 wt%Cr steels alloyed with both C and N. Moreover, it suggests that the use of nanoindentation for extracting the mechanical properties is limited by the non-uniqueness of the method with regard to the hardening exponent.

October 11, 2022

Influences on Quantitative Nitriding Layer Thickness Measurements using Model-Based Photothermal Radiometry*

M. Mikulewitsch, J. Dong, D. Stöbener, J. Epp, A. Fischer

Page range: 357-373

Abstract

In nitriding furnaces, the nitriding result is currently only controlled indirectly via the nitriding potential based on gas sensors. Detrimental properties such as soft spots, insufficient compound layer thickness or strongly porous zones, which might result from reduced surface reactivity, are thus only detected post-process. Therefore, in-process measurements of the layer formation promise a real benefit for energy efficiency and process quality enhancement. Photothermal radiometry is a promising contactless method for layer inspection that so far showed qualitative correlations of the photothermal phase signal with material parameters and layer thicknesses. In this article, thickness and thermal conductivity of the compound layer are quantitatively determined by using a physical signal model for a least-squares approximation of in-process measured photothermal phase signals. In addition, the influence of roughness and surface curvature is investigated, with the model-based photothermal layer thickness measurement showing robustness to different surface conditions and allowing quantification of the layer thickness with uncertainties < 1 μm even during in-process measurement inside an industrial nitriding furnace.

October 11, 2022

Influence of Plasma Power and Oxygen-Containing Process Gases in Active Screen Plasma Nitrocarburizing with Carbon Solid Source*

J. Böcker, A. Puth, A. V. Pipa, J.-P. H. van Helden, J. Röpcke, H. Biermann, A. Dalke

Page range: 374-390

Abstract

Plasma nitrocarburizing by means of active screen technology using an active screen made of carbon fiber-reinforced carbon was carried out by varying the power at the active screen and using oxygen-containing fresh gas components (O 2 , CO 2 ) in the N 2 :H 2 plasma using the example of the quenched and tempered steel AISI 4140 (42CrMo4). The investigations focused on the analysis of the process gas by means of laser absorption spectroscopy, the evaluation of the produced compound layers with regard to structure and phase composition, as well as the resulting properties. It was shown that by varying the process gas atmosphere, the structural composition of the compound layer and the concentration profiles of nitrogen and carbon can be specifically influenced. The high concentrations of carbon-containing compounds in the process gas resulted in complete suppression of γ’-Fe 4 N formation, but cementite was detected in the lower part of the compound layer. The addition of oxygen-containing fresh gases and the resulting change in process gas composition suppressed cementite formation. The results suggest that, in particular, high powers at the carbon active screen and the simultaneous addition of oxygen-containing gases results in the generation of nitrogen-rich, single-phase ε-compound layers.

Impressum / Imprint

Publicly Available October 11, 2022

Imprint / Impressum

Page range: A4-A4

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From and for Practice / Praxis-Informationen

Publicly Available October 11, 2022

AWT-Info / HTM 05-2022

Page range: A5-A29

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Publicly Available October 11, 2022

HTM Praxis

Page range: A30-A56

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Volume 77 (2022)

Volume 76 (2021)

Volume 75 (2020)

Volume 74 (2019)

Volume 73 (2018)

Volume 72 (2017)

Volume 71 (2016)

Volume 70 (2015)

Volume 69 (2014)

Volume 68 (2013)

Volume 67 (2012)

Volume 66 (2011)

Volume 65 (2010)

Volume 64 (2009)

Volume 63 (2008)

Volume 62 (2007)

Volume 61 (2006)

Volume 60 (2005)

Volume 59 (2004)

Volume 56 (2001)

Volume 54 (1999)

Volume 53 (1998)

Volume 52 (1997)

Volume 51 (1996)

Volume 49 (1994)

Volume 48 (1993)

Volume 47 (1992)

Volume 46 (1991)

Volume 45 (1990)

Volume 44 (1989)

Volume 43 (1988)

Volume 42 (1987)

Volume 41 (1986)

Volume 40 (1985)

Volume 39 (1984)

Volume 38 (1983)

Volume 37 (1982)

Volume 36 (1981)

Volume 35 (1980)

Volume 34 (1979)

Volume 33 (1978)

Volume 32 (1977)

Volume 31 (1976)

Volume 30 (1975)

Volume 29 (1974)

Volume 28 (1973)

Volume 26 (1971)

Volume 24 (1969)

Cite Score	1.9
Journal Citation Indicator	0.21
SCImago Journal Rank	0.330
Source Normalized Impact per Paper	1.007

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Manuscript submission

Thank you for your interest in publishing your technical paper with HTM Journal of Heat Treatment and Materials. You can easily submit your manuscript via the following link: https://mc.manuscriptcentral.com/htm

You will be guided through the whole submission process in ScholarOne Manuscripts System.

Service

Your publication will be independently and carefully peer-reviewed to the highest standard. You will receive individual and personal advice and support throughout the publication process.

Publication in German and English opens up your contribution to a broad, international audience from various fields of materials, manufacturing, and process engineering.

Accepted papers can be published online first as DOI-citable, forward-linked articles for the quickest possible visibility for the scientific community and interested readership.

If you have general questions about HTM, please contact: schicks@iwt-bremen.de or tiedemann@iwt-bremen.de.

General guidelines for authors

Before submitting your article please take note of the Instruction for Authors as well as the Copyright Transfer Agreement.

If you have any general questions, please visit our FAQ page for authors.

Rights of use
Please note: Publication in HTM Journal of Heat Treatment and Materials is exclusive.

If the content of the paper has already been presented orally at a meeting, you should note this with reference to the type, venue and date of the meeting.

The corresponding author is responsible for ensuring that the other named authors agree to the publication as submitted.

Upon acceptance of the manuscript, the publisher acquires rights of use for the duration of the legal protection period.

Hybrid Open Access

In this journal, authors have the option to publish their article under an open access license. Open access allows the authors to retain copyright and share their findings with colleagues and interested parties worldwide without any restraints.

Please note that authors from institutions with which we have a transformative agreement can publish open access without paying an article processing charge (APC) or at considerable discount. More information on the eligible institutions and articles can be found in the “Funding and Support” tab here.

Editorial

Editors in Chief
Prof. Dr. ir. Marcel A. J. Somers (somers@mek.dtu.dk)
Technical University of Denmark

Prof. Dr.-Ing. Olaf Keßler (olaf.kessler@uni-rostock.de)
Universität Rockstock

Dr.-Ing. Herwig Altena (Herwig.Altena@aichelin.com)
Former Aichelin Ges.m.b.H., (Mödling, Austria)

Editorial Office

Herrn Prof. Dr.-Ing. Rainer Fechte-Heinen (fechte@iwt-bremen.de)
IWT Leibniz-Institut für Werkstofforientierte Technologien (IWT) (Bremen, Germany)

Belinda Schicks (schicks@iwt-bremen.de)
Leibniz-Institut für Werkstofforientierte Technologien (IWT) (Bremen, Germany)

Ulla Tiedemann (tiedemann@iwt-bremen.de)
Leibniz-Institut für Werkstofforientierte Technologien (IWT) (Bremen, Germany)

Society contacts
Frau Sonja Müller (s.mueller@awt-online.org)
Managing Director, AWT Arbeitsgemeinschaft Wärmebehandlung und Werkstofftechnik e.V. (AWT)

Dietmar von der Au (Dietmar.vonderAu@degruyter.com)
Ad Sales VONDERAU Medienberatung

Prof. Dr.-Ing. Hans-Werner Zoch (zoch@iwt-bremen.de)
Former Managing Director IWT Leibniz-Institut für Werkstofforientierte Technologien (IWT) (Bremen, Germany)

(Deutsch)

Online ISSN: 2194-1831
Print ISSN: 1867-2493
Type: Journal
Language: Multiple languages
Publisher: De Gruyter
First published: January 1, 1949
Publication Frequency: 6 Issues per Year