Crack on the Inner Rim Flange of an Aluminum Rim
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I. Schulz
Ines Schulz studied at the TU Bergakademie Freiberg and since 1994 has been working as a research assistant in the Laboratory for Materials at the TH Köln, Campus Gummersbach. She supervises students in the materials engineering modules and is active in research projects. Failure analysis is another area of expertise.
Sabine Weichert is a trained Metallographer and materials tester. Since 2013 she has been working in the laboratory for Materials at the TH Köln, Campus Gummersbach. Besides collaborating in different research projects, she is involved in the supervision of students in the materials’ laboratory and handling of industrial assignments.
Abstract
The aluminum rim of a passenger car was claimed by the customer because a crack had appeared on the inner rim flange, which ran into the rim well. The cause of this damage was to be determined.
Accumulations of oxide skins in areas close to the surface were proven to be the cause of failure by metallographic and scanning electron microscopic examinations. The cause of the damage was a manufacturing defect.
Kurzfassung
Die Aluminiumfelge eines PKW wurde durch den Kunden reklamiert, da am inneren Felgenhorn ein Riss aufgetreten war, der bis ins Felgenbett verläuft. Die Ursache für diesen Schaden sollte ermittelt werden.
Es konnten Ansammlungen von Oxidhäuten in oberflächennahen Bereichen als Versagensursache durch metallographische und rasterelektronenmikroskopische Untersuchungen nachgewiesen werden. Schadensursache war ein herstellungsbedingter Fehler.
About the authors
Ines Schulz studied at the TU Bergakademie Freiberg and since 1994 has been working as a research assistant in the Laboratory for Materials at the TH Köln, Campus Gummersbach. She supervises students in the materials engineering modules and is active in research projects. Failure analysis is another area of expertise.
Sabine Weichert is a trained Metallographer and materials tester. Since 2013 she has been working in the laboratory for Materials at the TH Köln, Campus Gummersbach. Besides collaborating in different research projects, she is involved in the supervision of students in the materials’ laboratory and handling of industrial assignments.
References / Literatur
[1] Hielscher, U.: Erfahrungen und Merkmale beim Gießen von Aluminium-Automobilrädern, Berichte aus der Praxis, Sonderdruck aus Aluminium, Heft 6/78Search in Google Scholar
[2] Hielscher, U.: Gießbarkeit verschiedener Aluminiumgusslegierungen im Niederdruck-Kokillengießverfahren und mechanische Eigenschaften der Gussstücke, Berichte aus der Praxis, Sonderdruck aus Aluminium, Heft 6/73Search in Google Scholar
[3] Rheinfelden Hüttenaluminium Gusslegierungen, Ausgabe 6, 3. Auflage 05/2003Search in Google Scholar
[4] Freudenberger, J.; Heilmeier, M: Materialkunde der Nichteisenmetalle und -legierungen, WILEY-VCH Verlag, Weinheim, Deutschland, 2020, S.48ffSearch in Google Scholar
[5] Michelfeit, S.: Werkstoffgesetze einer AlSi-Gusslegierung unter Hochtemperaturbeanspruchung in Abhängigkeit des Werkstoffzustandes, Dissertation Darmstadt 2012, S. 9ffSearch in Google Scholar
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- Editorial
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- Campo del Cielo – an Iron Meteorite found in Argentina
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- People
- Interview with Gundula Jeschke
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Articles in the same Issue
- Contents
- Editorial
- Editorial
- Application of the Color Etching Technique for Non-Ferrous Metals
- Campo del Cielo – an Iron Meteorite found in Argentina
- Failure Analysis
- Crack on the Inner Rim Flange of an Aluminum Rim
- Porosity in Medical Drills Caused by Fractured Carbides – A Review
- Picture of the Month
- Picture of the Month
- People
- Interview with Gundula Jeschke
- News
- Automatisierte chemische Synthese – Zuverlässige Herstellung und zügiger Erkenntnisgewinn
- Meeting Diary
- Meeting Diary
