Plastic deformation characteristics of worn precipitation-hardened aluminium alloys

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Characterisation of the plastic deformation of two types of precipitation-hardened aluminium alloys; A2124 and A6092 against M2 steel was carried out using a block-on-ring configuration. The wear test was used under dry sliding condition at ∼1m/s over the load range; 23-140N. Detailed microscopy was performed with the aid of scanning electron microscope (SEM) to determine the sub-surface structural evolution and local worn surface topography. The formation of a mechanical mixed layer (MML) due to repeated sliding generically, leads to a significant difference in wear response since the properties of the layers differ from those of the bulk. In this work, the absolute hardness values of the MML were very high compared to the bulk hardness of the underlying material with the A2124 exhibiting the greatest hardening; almost a fourfold increase over the bulk hardness. Finally, the relationship between the characteristics of the MMLs especially on the work hardening and the alloy type is discussed.

Original languageEnglish
Pages (from-to)125-129
Number of pages5
JournalInternational Journal of Mechanical and Materials Engineering
Volume2
Issue number2
Publication statusPublished - 2007

Fingerprint

Aluminum alloys
Plastic deformation
Hardness
Wear of materials
Steel
Surface topography
Strain hardening
Hardening
Microscopic examination
Electron microscopes
Scanning

Keywords

  • Aluminium alloys
  • Mechanical mixed layer (MML)
  • Plastic deformation
  • Precipitation-hardened
  • Wear

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

@article{edce4dd7601848209a75ce7d7ddba6d1,
title = "Plastic deformation characteristics of worn precipitation-hardened aluminium alloys",
abstract = "Characterisation of the plastic deformation of two types of precipitation-hardened aluminium alloys; A2124 and A6092 against M2 steel was carried out using a block-on-ring configuration. The wear test was used under dry sliding condition at ∼1m/s over the load range; 23-140N. Detailed microscopy was performed with the aid of scanning electron microscope (SEM) to determine the sub-surface structural evolution and local worn surface topography. The formation of a mechanical mixed layer (MML) due to repeated sliding generically, leads to a significant difference in wear response since the properties of the layers differ from those of the bulk. In this work, the absolute hardness values of the MML were very high compared to the bulk hardness of the underlying material with the A2124 exhibiting the greatest hardening; almost a fourfold increase over the bulk hardness. Finally, the relationship between the characteristics of the MMLs especially on the work hardening and the alloy type is discussed.",
keywords = "Aluminium alloys, Mechanical mixed layer (MML), Plastic deformation, Precipitation-hardened, Wear",
author = "Ghazali, {Mariyam Jameelah} and {A Ghani}, Jaharah and Omar, {Mohd. Zaidi}",
year = "2007",
language = "English",
volume = "2",
pages = "125--129",
journal = "International Journal of Mechanical and Materials Engineering",
issn = "1823-0334",
publisher = "University of Malaya",
number = "2",

}

TY - JOUR

T1 - Plastic deformation characteristics of worn precipitation-hardened aluminium alloys

AU - Ghazali, Mariyam Jameelah

AU - A Ghani, Jaharah

AU - Omar, Mohd. Zaidi

PY - 2007

Y1 - 2007

N2 - Characterisation of the plastic deformation of two types of precipitation-hardened aluminium alloys; A2124 and A6092 against M2 steel was carried out using a block-on-ring configuration. The wear test was used under dry sliding condition at ∼1m/s over the load range; 23-140N. Detailed microscopy was performed with the aid of scanning electron microscope (SEM) to determine the sub-surface structural evolution and local worn surface topography. The formation of a mechanical mixed layer (MML) due to repeated sliding generically, leads to a significant difference in wear response since the properties of the layers differ from those of the bulk. In this work, the absolute hardness values of the MML were very high compared to the bulk hardness of the underlying material with the A2124 exhibiting the greatest hardening; almost a fourfold increase over the bulk hardness. Finally, the relationship between the characteristics of the MMLs especially on the work hardening and the alloy type is discussed.

AB - Characterisation of the plastic deformation of two types of precipitation-hardened aluminium alloys; A2124 and A6092 against M2 steel was carried out using a block-on-ring configuration. The wear test was used under dry sliding condition at ∼1m/s over the load range; 23-140N. Detailed microscopy was performed with the aid of scanning electron microscope (SEM) to determine the sub-surface structural evolution and local worn surface topography. The formation of a mechanical mixed layer (MML) due to repeated sliding generically, leads to a significant difference in wear response since the properties of the layers differ from those of the bulk. In this work, the absolute hardness values of the MML were very high compared to the bulk hardness of the underlying material with the A2124 exhibiting the greatest hardening; almost a fourfold increase over the bulk hardness. Finally, the relationship between the characteristics of the MMLs especially on the work hardening and the alloy type is discussed.

KW - Aluminium alloys

KW - Mechanical mixed layer (MML)

KW - Plastic deformation

KW - Precipitation-hardened

KW - Wear

UR - http://www.scopus.com/inward/record.url?scp=39549086118&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=39549086118&partnerID=8YFLogxK

M3 - Article

VL - 2

SP - 125

EP - 129

JO - International Journal of Mechanical and Materials Engineering

JF - International Journal of Mechanical and Materials Engineering

SN - 1823-0334

IS - 2

ER -