A proposed diffusion-controlled wear mechanism of alloy steel friction stir welding (FSW) tools used on an aluminum alloy

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38 Citations (Scopus)

Abstract

A study of diffusion wear mechanism in 1.2344 X40CrMoV5-1 steel FSW tool has been carried out from the standpoint of tribological layer generation and interaction with the tool's metal. It was shown that during FSW of AMg5M aluminum alloy the latter covers the tool's working surface and then iron/aluminum reaction diffusion is initiated under the conditions of high mechanical stress and temperature. Since diffusion by the former austenite grain boundaries is much faster than that of by volume an intermetallic compound is formed inside the tool's metal thus causing embrittlement and pulling out the tool's metal fragments.

Original languageEnglish
Pages (from-to)130-134
Number of pages5
JournalWear
Volume318
Issue number1-2
DOIs
Publication statusPublished - 15 Oct 2014

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friction stir welding
Friction stir welding
Alloy steel
aluminum alloys
Aluminum alloys
Wear of materials
steels
Metals
metals
embrittlement
Steel
pulling
Embrittlement
austenite
Aluminum
Austenite
Intermetallics
intermetallics
Grain boundaries
Iron

Keywords

  • Embrittlement
  • Friction stir welding
  • Grain boundary diffusion
  • Intermetallic compound
  • Steel
  • Wear

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Mechanics of Materials

Cite this

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title = "A proposed diffusion-controlled wear mechanism of alloy steel friction stir welding (FSW) tools used on an aluminum alloy",
abstract = "A study of diffusion wear mechanism in 1.2344 X40CrMoV5-1 steel FSW tool has been carried out from the standpoint of tribological layer generation and interaction with the tool's metal. It was shown that during FSW of AMg5M aluminum alloy the latter covers the tool's working surface and then iron/aluminum reaction diffusion is initiated under the conditions of high mechanical stress and temperature. Since diffusion by the former austenite grain boundaries is much faster than that of by volume an intermetallic compound is formed inside the tool's metal thus causing embrittlement and pulling out the tool's metal fragments.",
keywords = "Embrittlement, Friction stir welding, Grain boundary diffusion, Intermetallic compound, Steel, Wear",
author = "Tarasov, {S. Yu} and Rubtsov, {V. E.} and Kolubaev, {E. A.}",
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T1 - A proposed diffusion-controlled wear mechanism of alloy steel friction stir welding (FSW) tools used on an aluminum alloy

AU - Tarasov, S. Yu

AU - Rubtsov, V. E.

AU - Kolubaev, E. A.

PY - 2014/10/15

Y1 - 2014/10/15

N2 - A study of diffusion wear mechanism in 1.2344 X40CrMoV5-1 steel FSW tool has been carried out from the standpoint of tribological layer generation and interaction with the tool's metal. It was shown that during FSW of AMg5M aluminum alloy the latter covers the tool's working surface and then iron/aluminum reaction diffusion is initiated under the conditions of high mechanical stress and temperature. Since diffusion by the former austenite grain boundaries is much faster than that of by volume an intermetallic compound is formed inside the tool's metal thus causing embrittlement and pulling out the tool's metal fragments.

AB - A study of diffusion wear mechanism in 1.2344 X40CrMoV5-1 steel FSW tool has been carried out from the standpoint of tribological layer generation and interaction with the tool's metal. It was shown that during FSW of AMg5M aluminum alloy the latter covers the tool's working surface and then iron/aluminum reaction diffusion is initiated under the conditions of high mechanical stress and temperature. Since diffusion by the former austenite grain boundaries is much faster than that of by volume an intermetallic compound is formed inside the tool's metal thus causing embrittlement and pulling out the tool's metal fragments.

KW - Embrittlement

KW - Friction stir welding

KW - Grain boundary diffusion

KW - Intermetallic compound

KW - Steel

KW - Wear

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