Published since January 1, 1964

Practical Metallography

Praktische Metallographie – Preparation, Imaging and Analysis of Microstructures

ISSN: 2195-8599

Impact Factor: 0.429

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About this journal

Practical Metallography is a bilingual (German-English) journal that informs you thoroughly on materialographic preparation, imaging and analysis of microstructures. The journal covers the development and improvement of metallographic methods and equipment, possibilities of optical and electron microscopy, spectroscopy, diffraction techniques, non-destructive testing, metallographic investigations of materials, problems of specimens preparation and evaluation including useful laboratory advice and recipes, failure analysis including damage detection and elimination.
All articles are subject to thorough, independent peer review.
Practical Metallography works closely with Deutsche Gesellschaft für Materialkunde e.V. (DGM)

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Volume 59 Issue 10

October 2022

Publicly Available September 24, 2022

Page range: 557-559

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Editorial

Publicly Available September 24, 2022

Editorial

Page range: 579-579

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September 24, 2022

Reproducibility and Scattering in Additive Manufacturing: Results from a Round Robin on PBF-LB/M AlSi10Mg Alloy

M. Schneider, D. Bettge, M. Binder, K. Dollmeier, M. Dreyer, K. Hilgenberg, B. Klöden, T. Schlingmann, J. Schmidt

Page range: 580-614

Abstract

The round robin test investigated the reliability users can expect for AlSi10Mg additive manufactured specimens by laser powder bed fusion through examining powder quality, process parameter, microstructure defects, strength and fatigue. Besides for one outlier, expected static material properties could be found. Optical microstructure inspection was beneficial to determine true porosity and porosity types to explain the occurring scatter in properties. Fractographic analyses reveal that the fatigue crack propagation starts at the rough as-built surface for all specimens. Statistical analysis of the scatter in fatigue using statistical derived safety factors concludes that at a stress of 36.87 MPa the fatigue limit of 10 7 cycles could be reached for all specimen with a survival probability of 99.999 %.

September 24, 2022

Target preparation of low-pressure cold-sprayed metal powder coatings to create defined micro-leakage

M. Kappertz, C. Hoven, F. Pauly, R. Lohoff, G. Natour

Page range: 615-627

Abstract

Defined micro-leaks have been used as reference leaks in non-destructive testing for many years, for example in the adjustment, calibration and functional testing of helium leak detectors. Test leaks are also used in non-destructive testing training to teach the staff how to detect these “invisible” leaks. The traditional production of test specimens with defined leakage, however, is timecon suming and expensive. In addition, these specimens are susceptible to impacts and can break easily. A new approach for producing robust specimens with defined leakage is gas dynamic cold spraying, or cold spraying, where a very small opening is closed using an open-pore metal powder filling. This manufacturing process is particularly suitable for industrial purposes due to the good controllability of the production process. Unlike traditionally manufactured glass bodies, the specimens produced in this way are less susceptible to mechanical impacts. The present study is concerned with the metallographic examination of porous coatings to create defined leaks using cold spraying.

September 24, 2022

Materialographic Preparation of Salt

R. Blank, H. Nitschke, R. Saliwan Neumann, A. Kranzmann

Page range: 628-640

Abstract

Molten salt containing systems gain in importance for sustainable energy use and production. For research and development, interactions of molten salts with potential container materials are of major interest. This article introduces preparation procedures to display an intact metal and salt microstructure and their interface using light optical microscopy and scanning electron microscopy. The exemplary material combination is the ternary salt mixture NaCl-KCl-MgCl 2 and the low alloyed steel 1.4901 (T92) with a maximum service temperature of 550 °C. These are potential elements/materials for use in latent heat thermal energy storages.

Failure Analysis

September 24, 2022

Liquation Cracking in Linear Friction Welded Directionally Cast Alloy 247

A. Neidel, M. Giller, S. Riesenbeck

Page range: 641-651

Abstract

Linear Friction Welding (LFW) is a rarely used joining technology. To test the suitability of this solid-state process for hot cracking-sensitive nickel base superalloys, tests were performed using conventionally and directionally cast slabs of Alloy 247. Since LFW does not involve melting of the weld flanks, there were some expectations that this special welding technique could overcome the poor weldability of Alloy 247. However, all tested specimens failed by liquation cracking (LC) within the Weld Center Zone (WCZ) at the directionally cast side.

Picture of the Month

September 24, 2022

Picture of the Month

Page range: 652-652

News

September 24, 2022

News

Page range: 653-654

Meeting Diary

September 24, 2022

Meeting Diary

Page range: 655-655

Volume 59 (2022)

Volume 58 (2021)

Volume 57 (2020)

Volume 56 (2019)

Volume 55 (2018)

Volume 54 (2017)

Volume 53 (2016)

Volume 52 (2015)

Volume 51 (2014)

Volume 50 (2013)

Volume 49 (2012)

Volume 48 (2011)

Volume 47 (2010)

Volume 46 (2009)

Volume 45 (2008)

Volume 44 (2007)

Volume 43 (2006)

Volume 42 (2005)

Volume 41 (2004)

Volume 40 (2003)

Volume 39 (2002)

Volume 38 (2001)

Volume 37 (2000)

Volume 36 (1998)

Volume 34 (1997)

Volume 33 (1996)

Volume 32 (1995)

Volume 31 (1994)

Volume 30 (1993)

Volume 29 (1992)

Volume 28 (1991)

Volume 27 (1990)

Volume 26 (1989)

Volume 25 (1988)

Volume 24 (1987)

Volume 23 (1986)

Volume 22 (1985)

Volume 21 (1984)

Volume 20 (1983)

Volume 18 (1981)

Volume 17 (1980)

Volume 16 (1979)

Volume 15 (1978)

Volume 14 (1977)

Volume 13 (1976)

Volume 12 (1975)

Volume 11 (1974)

Volume 10 (1973)

Volume 9 (1972)

Volume 8 (1971)

Volume 7 (1970)

Volume 6 (1969)

Volume 5 (1968)

Volume 4 (1967)

Volume 2 (1965)

Volume 1 (1964)

5-year Impact Factor	0.436
Cite Score	0.7
Impact Factor	0.429
Journal Citation Indicator	0.11
SCImago Journal Rank	0.186
Source Normalized Impact per Paper	0.267

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Manuscript submission

You can easily submit your manuscript online. Simply go to https://mc.manuscriptcentral.com/practmet and you will be guided through the whole submission and publishing process.

Editorial

Editor
Prof. Dr.-Ing. Frank Mücklich (muecke@matsci.uni-sb.de)
Saarland University
Deutsche Gesellschaft für Materialkunde e.V. (DGM)

Editorial Office
Michael Engstler (pmeditor@materialography.net)
Saarland University
Campus D3 3
66123 Saarbrücken

Dr.-Ing. Agustina Guitar
Laura Ulrich
Niklas Müller

Society contact
Honorary Chairman, DGM
Prof. Dr. Dr. Günter Petzow
Deutsche Gesellschaft für Materialkunde e.V. (DGM)

(Deutsch)

Online ISSN: 2195-8599
Print ISSN: 0032-678X
Type: Journal
Language: Multiple languages
Publisher: De Gruyter
First published: January 1, 1964
Publication Frequency: 12 Issues per Year

Practical Metallography

Praktische Metallographie – Preparation, Imaging and Analysis of Microstructures

Contents

Editorial

Reproducibility and Scattering in Additive Manufacturing: Results from a Round Robin on PBF-LB/M AlSi10Mg Alloy

Abstract

Target preparation of low-pressure cold-sprayed metal powder coatings to create defined micro-leakage

Abstract

Materialographic Preparation of Salt

Abstract

Liquation Cracking in Linear Friction Welded Directionally Cast Alloy 247

Abstract

Picture of the Month

News

Meeting Diary