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

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

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
10 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

VL - 62

SP - 78

EP - 87

JO - Tribology transactions

JF - Tribology transactions

SN - 1040-2004

IS - 1

ER -