The dry sliding behavior of Al2O3 transformed, hypereutectic, 2xxx, and 7xxx, aluminum alloys under simulated wire-rope induced wear

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Abstract

The dry sliding wear behavior of various 2xxx and 7xxx aluminum alloys along with an aluminum alloy with the surface transformed to alumina (Al2O3) and a hypereutectic aluminum silicon alloy (B390) were evaluated with a pin-on-disk wear apparatus to simulate wire-rope against sheave wheel interactions for a unique Naval applications. Simulation of a steel cable on an aluminum sheave wheel was accomplished by using a 387 steel (RC 58) disk containing 45° cuts to mimic individual strands of the wire-rope. Using system dictated conditions, the ring was rotated at 1500 RPM to obtain a sliding velocity of 9.42 m/s, with the contact pressure of the candidate aluminum pins adjusted to maintain a steady 0.69 MPa (100 psi). Under the prescribed conditions, the transformed alumina exhibited a superior wear resistance when compared to the 2xxx, 7xxx, and B390 alloys. However, the brittle material did fracture on one occasion, thereby indicating the potential for deleterious abrasive debris. Wear mode analyses of the various materials using optical and electron microscopy revealed wear mechanisms that included adhesion, abrasion and fracture.

Original languageEnglish (US)
Pages30-38
Number of pages9
Volume63
No2
Specialist publicationTribology and Lubrication Technology
StatePublished - Feb 1 2007

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Wire rope
Aluminum alloys
Wear of materials
Wheels
Alumina
Aluminum
Silicon alloys
Steel
Brittleness
Abrasives
Abrasion
Debris
Electron microscopy
Wear resistance
Optical microscopy
Cables
Adhesion

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this

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title = "The dry sliding behavior of Al2O3 transformed, hypereutectic, 2xxx, and 7xxx, aluminum alloys under simulated wire-rope induced wear",
abstract = "The dry sliding wear behavior of various 2xxx and 7xxx aluminum alloys along with an aluminum alloy with the surface transformed to alumina (Al2O3) and a hypereutectic aluminum silicon alloy (B390) were evaluated with a pin-on-disk wear apparatus to simulate wire-rope against sheave wheel interactions for a unique Naval applications. Simulation of a steel cable on an aluminum sheave wheel was accomplished by using a 387 steel (RC 58) disk containing 45° cuts to mimic individual strands of the wire-rope. Using system dictated conditions, the ring was rotated at 1500 RPM to obtain a sliding velocity of 9.42 m/s, with the contact pressure of the candidate aluminum pins adjusted to maintain a steady 0.69 MPa (100 psi). Under the prescribed conditions, the transformed alumina exhibited a superior wear resistance when compared to the 2xxx, 7xxx, and B390 alloys. However, the brittle material did fracture on one occasion, thereby indicating the potential for deleterious abrasive debris. Wear mode analyses of the various materials using optical and electron microscopy revealed wear mechanisms that included adhesion, abrasion and fracture.",
author = "McConnell, {John E.} and Segall, {Albert Eliot} and Eden, {Timothy John}",
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N2 - The dry sliding wear behavior of various 2xxx and 7xxx aluminum alloys along with an aluminum alloy with the surface transformed to alumina (Al2O3) and a hypereutectic aluminum silicon alloy (B390) were evaluated with a pin-on-disk wear apparatus to simulate wire-rope against sheave wheel interactions for a unique Naval applications. Simulation of a steel cable on an aluminum sheave wheel was accomplished by using a 387 steel (RC 58) disk containing 45° cuts to mimic individual strands of the wire-rope. Using system dictated conditions, the ring was rotated at 1500 RPM to obtain a sliding velocity of 9.42 m/s, with the contact pressure of the candidate aluminum pins adjusted to maintain a steady 0.69 MPa (100 psi). Under the prescribed conditions, the transformed alumina exhibited a superior wear resistance when compared to the 2xxx, 7xxx, and B390 alloys. However, the brittle material did fracture on one occasion, thereby indicating the potential for deleterious abrasive debris. Wear mode analyses of the various materials using optical and electron microscopy revealed wear mechanisms that included adhesion, abrasion and fracture.

AB - The dry sliding wear behavior of various 2xxx and 7xxx aluminum alloys along with an aluminum alloy with the surface transformed to alumina (Al2O3) and a hypereutectic aluminum silicon alloy (B390) were evaluated with a pin-on-disk wear apparatus to simulate wire-rope against sheave wheel interactions for a unique Naval applications. Simulation of a steel cable on an aluminum sheave wheel was accomplished by using a 387 steel (RC 58) disk containing 45° cuts to mimic individual strands of the wire-rope. Using system dictated conditions, the ring was rotated at 1500 RPM to obtain a sliding velocity of 9.42 m/s, with the contact pressure of the candidate aluminum pins adjusted to maintain a steady 0.69 MPa (100 psi). Under the prescribed conditions, the transformed alumina exhibited a superior wear resistance when compared to the 2xxx, 7xxx, and B390 alloys. However, the brittle material did fracture on one occasion, thereby indicating the potential for deleterious abrasive debris. Wear mode analyses of the various materials using optical and electron microscopy revealed wear mechanisms that included adhesion, abrasion and fracture.

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