A Master Curve for the Shear Degradation of Lubricating Greases with a Fibrous Structure

Yuxin Zhou* (Corresponding Author), Rob Bosman, Piet M. Lugt

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    6 Citations (Scopus)
    29 Downloads (Pure)

    Abstract

    In this article, the mechanical aging behavior of lubricating greases with a fibrous structure is studied by aging fresh samples at controlled shear rates and temperatures in an in-house-made Couette aging machine. The rheological properties of fresh and aged samples were evaluated in a plate–plate rheometer. In the absence of oxygen, no chemical reactions occurred. The results showed that shear degradation is accelerated by increasing the temperature. This thermal effect can be described by an Arrhenius law. A grease aging master curve was created to describe the influence of shear and temperature on the mechanical aging of fibrous structured grease. Next, the model was validated using a conventional grease worker test. Finally, the model was applied to full ball bearings using an R0F + bearing test rig. The master curve forms an important contribution to the development of grease life models.

    Original languageEnglish
    Pages (from-to)78-87
    Number of pages10
    JournalTribology transactions
    Volume62
    Issue number1
    Early online date6 Dec 2018
    DOIs
    Publication statusPublished - 2 Jan 2019

    Fingerprint

    greases
    Lubricating greases
    Aging of materials
    degradation
    shear
    Degradation
    curves
    Bearings (structural)
    ball bearings
    rheometers
    Ball bearings
    Rheometers
    Thermal effects
    Temperature
    Shear deformation
    temperature
    temperature effects
    Chemical reactions
    chemical reactions
    Oxygen

    Keywords

    • Grease aging
    • lubrication
    • rolling bearing

    Cite this

    @article{8d174e9954d14eae90aab3f6dbe86ae2,
    title = "A Master Curve for the Shear Degradation of Lubricating Greases with a Fibrous Structure",
    abstract = "In this article, the mechanical aging behavior of lubricating greases with a fibrous structure is studied by aging fresh samples at controlled shear rates and temperatures in an in-house-made Couette aging machine. The rheological properties of fresh and aged samples were evaluated in a plate–plate rheometer. In the absence of oxygen, no chemical reactions occurred. The results showed that shear degradation is accelerated by increasing the temperature. This thermal effect can be described by an Arrhenius law. A grease aging master curve was created to describe the influence of shear and temperature on the mechanical aging of fibrous structured grease. Next, the model was validated using a conventional grease worker test. Finally, the model was applied to full ball bearings using an R0F + bearing test rig. The master curve forms an important contribution to the development of grease life models.",
    keywords = "Grease aging, lubrication, rolling bearing",
    author = "Yuxin Zhou and Rob Bosman and Lugt, {Piet M.}",
    year = "2019",
    month = "1",
    day = "2",
    doi = "10.1080/10402004.2018.1496304",
    language = "English",
    volume = "62",
    pages = "78--87",
    journal = "Tribology transactions",
    issn = "1040-2004",
    publisher = "Taylor & Francis",
    number = "1",

    }

    A Master Curve for the Shear Degradation of Lubricating Greases with a Fibrous Structure. / Zhou, Yuxin (Corresponding Author); Bosman, Rob; Lugt, Piet M.

    In: Tribology transactions, Vol. 62, No. 1, 02.01.2019, p. 78-87.

    Research output: Contribution to journalArticleAcademicpeer-review

    TY - JOUR

    T1 - A Master Curve for the Shear Degradation of Lubricating Greases with a Fibrous Structure

    AU - Zhou, Yuxin

    AU - Bosman, Rob

    AU - Lugt, Piet M.

    PY - 2019/1/2

    Y1 - 2019/1/2

    N2 - In this article, the mechanical aging behavior of lubricating greases with a fibrous structure is studied by aging fresh samples at controlled shear rates and temperatures in an in-house-made Couette aging machine. The rheological properties of fresh and aged samples were evaluated in a plate–plate rheometer. In the absence of oxygen, no chemical reactions occurred. The results showed that shear degradation is accelerated by increasing the temperature. This thermal effect can be described by an Arrhenius law. A grease aging master curve was created to describe the influence of shear and temperature on the mechanical aging of fibrous structured grease. Next, the model was validated using a conventional grease worker test. Finally, the model was applied to full ball bearings using an R0F + bearing test rig. The master curve forms an important contribution to the development of grease life models.

    AB - In this article, the mechanical aging behavior of lubricating greases with a fibrous structure is studied by aging fresh samples at controlled shear rates and temperatures in an in-house-made Couette aging machine. The rheological properties of fresh and aged samples were evaluated in a plate–plate rheometer. In the absence of oxygen, no chemical reactions occurred. The results showed that shear degradation is accelerated by increasing the temperature. This thermal effect can be described by an Arrhenius law. A grease aging master curve was created to describe the influence of shear and temperature on the mechanical aging of fibrous structured grease. Next, the model was validated using a conventional grease worker test. Finally, the model was applied to full ball bearings using an R0F + bearing test rig. The master curve forms an important contribution to the development of grease life models.

    KW - Grease aging

    KW - lubrication

    KW - rolling bearing

    UR - http://www.scopus.com/inward/record.url?scp=85052653499&partnerID=8YFLogxK

    U2 - 10.1080/10402004.2018.1496304

    DO - 10.1080/10402004.2018.1496304

    M3 - Article

    AN - SCOPUS:85052653499

    VL - 62

    SP - 78

    EP - 87

    JO - Tribology transactions

    JF - Tribology transactions

    SN - 1040-2004

    IS - 1

    ER -