Tribology and Tool Wear of Hot Dip Galvanized Zinc Magnesium Alloys on Cold Rolled Steel Sheets

Journal Article · Wed May 04 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3589776· OSTI ID:21516747

Raab, A E; Berger, E; Freudenthaler, J; Leomann, F; Walch, C ^[1]

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1. Research and Development, Forming Technology voestalpine Stahl GmbH, Voest-Alpine Strasse 3, 4031 Linz (Austria)

Recently zinc based coatings on cold rolled steel with improved functionality in terms of forming and/or corrosion behaviour have been intensively investigated in the steel industry. One of the most promising products are zinc magnesium alloys produced in hot dip galvanizing process. These coatings were already introduced in construction industry a few years ago. With some modifications the improved properties of the coating are also interesting for automotive industry. In the present work the tribological potential of hot dip galvanized zinc magnesium coatings (HDG/ZM) produced at an industrial line under regular production, was studied in terms of sliding properties, adhesive and abrasive tool wear.First a short introduction into surface morphology of HDG/ZM will be given. For the tribological characterization of the material, which is the main topic of the contribution, different tests were performed on hot dip galvanised zinc magnesium material and results were compared with classic hot dip galvanized zinc coating (HDG/Z). The investigations are mainly based on the strip draw test which allows the determination of the friction coefficient directly by using a constant contact pressure. Deep drawing property was tested by forming model cups. The abrasive tool wear was tested using a standard test for material used in automotive industry. The adhesive tool wear was investigated by characterizing the coating material transferred to the tool in the strip draw test.All performed tests show an improved drawability of HDG/ZM compared to classical HDG/Z reference material. However the most promising difference between HDG/ZM and HDG/Z is that galling was found to be less for HDG/ZM than for HDG/Z. Therefore HDG/ZM is an interesting system not only with respect to corrosion protection but also in terms of tribology and provides clear advantages in formability.

• OSTI ID: 21516747
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1353; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABRASIVES
ADHESIVES
ALLOYS
CARBON ADDITIONS
CHEMICAL REACTIONS
COATINGS
CORROSION
CORROSION PROTECTION
DEPOSITION
DIMENSIONLESS NUMBERS
DIP COATING
DRAWING
ELEMENTS
EQUIPMENT
FABRICATION
FRICTION FACTOR
HOT DIPPING
IRON ALLOYS
IRON BASE ALLOYS
MAGNESIUM ALLOYS
MATERIALS WORKING
METALS
MODIFICATIONS
SHEETS
STEELS
SURFACE COATING
SURFACES
TOOLS
TRANSITION ELEMENT ALLOYS
TRIBOLOGY
WEAR
ZINC
ZINC ALLOYS