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A note on the pitting life of IQ steel versus 16MnCr5 steel in a back to back gear test rig
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi. (SKD)ORCID iD: 0000-0003-4447-3363
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi.ORCID iD: 0000-0002-2347-8379
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi.
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Tribologi. (SKD)ORCID iD: 0000-0003-2489-0688
2018 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

IQ-steel is isotropic (i.e. equally strong in all directions), cleaner, and with less inclusions than 16MnCr5 regular gear steel (RS). IQ-steel is used in diesel inlets and for bearings but to date has not been used for gears. Previous studies, has shown good potential to increase the bending fatigue life of gears. The method in this study is a mechanical test procedure to determine the pitting load capacity of gear transmission lubricants, but with the focus on comparing the pitting load capacity of the two steel types IQ-steel with RS. Times to failures, photographs of the fatigue damage are presented in the study. Gear teeth from each steel type were analysed using SEM. The results, which are based on six tests in total (three IQ-steel and three RS-steel gear pairs), indicate that the IQ-steel may have at least similar surface capacity as the regular steel.

Keywords: Pitting life, Gear, IQ-steel

Place, publisher, year, edition, pages
2018.
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-249939OAI: oai:DiVA.org:kth-249939DiVA, id: diva2:1306337
Conference
18th Nordic Symposium on Tribology (NORDTRIB 2018) in Uppsala on 18 - 21 June 2018
Note

QC 20190522

Available from: 2019-04-23 Created: 2019-04-23 Last updated: 2019-05-22Bibliographically approved

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Bergseth, EllenSosa, MarioAndersson, MartinOlofsson, Ulf

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