Austempered ductile iron (ADI) gears: Power loss, pitting and micropitting

• Type: Article in International Scientific Journal
• Date: 2008

Authors

Martins, R (Author) FEUP; Seabra, J (Author) FEUP; Magalhaes, L (Author) FEUP

Journal

Title: Wear

Vol. 264 No. 9-10

Pages: 838-849

ISSN: 0043-1648

Publisher: Elsevier

Indexing

ISI Proceedings

ISI Web of Knowledge - 28 Citations

ISI Web of Science

Scopus - 36 Citations

INSPEC

COMPENDEX

Scientific classification

FOS: Engineering and technology > Mechanical engineering

CORDIS: Technological sciences > Engineering > Mechanical engineering

Other information

Authenticus ID: P-004-06K

DOI: 10.1016/j.wear.2007.05.007

Abstract (EN): This work is a systematic experimental evaluation of austempered ductile iron (ADI) as a gear material. The evaluation of this ADI as a gear material concerns two main aspects: power loss and contact fatigue resistance (pitting and micropitting). All gear tests were performed on the FZG test rig. For the micropitting and power loss evaluation two gear lubricants were considered. The results show that ADI is a material to be considered by gear designers, once the energetic behavior of ADI gears is similar to carburizing gears, being although slightly worst at high input power. The pitting life is infinite for contact pressures below 1.2 GPa. The best wear behavior of ADI is attained if combined with ester biodegradable lubricant, both on power loss and micropitting tests, so the best overall behavior of ADI a gears is obtained with biodegradable ester lubricant.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12