Transformation of iron containing constituent intermetallic particles during hydrothermal treatment

Shruti Borgaonkar; Rameez Ud Din; Takeshi Kasama; Rajan Ambat

doi:10.1016/j.tsf.2018.01.043

Transformation of iron containing constituent intermetallic particles during hydrothermal treatment

Shruti Borgaonkar, Rameez Ud Din^*, Takeshi Kasama, Rajan Ambat

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

Aluminium alloys AA3102 and AA9108 were treated with high temperature steam, which resulted in the formation of an oxide layer of average thickness of 300–400 nm. Hydrothermal steam treatment resulted in the removal or oxidation of Al (Fe) Mn and Al (Fe-Si) Mn type intermetallic particles present in the alloys. Furthermore, electron energy loss spectroscopy analysis revealed that the during the steam treatment, the Fe enriched areas of the Al (Fe-Si) Mn type intermetallic particles were transformed into Fe₂O₃and Fe₃O₄ phases, while energy-dispersive X-ray spectroscopy line profile measurements by scanning transmission electron microscope showed that Mn and Si were leached out and incorporated into the surrounding oxide layer. Further, the part of intermetallic phase was transformed into polycrystalline material.

Original language	English
Journal	Thin Solid Films
Volume	649
Pages (from-to)	121-128
ISSN	0040-6090
DOIs	https://doi.org/10.1016/j.tsf.2018.01.043
Publication status	Published - 2018

Keywords

Steam
Aluminium alloys
Intermetallic particles
Transmission electron microscopy
Electron energy loss spectroscopy

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10.1016/j.tsf.2018.01.043

TSF D 17 00851R2Accepted author manuscript, 1.75 MBLicence: CC BY-NC-ND

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title = "Transformation of iron containing constituent intermetallic particles during hydrothermal treatment",

abstract = "Aluminium alloys AA3102 and AA9108 were treated with high temperature steam, which resulted in the formation of an oxide layer of average thickness of 300–400 nm. Hydrothermal steam treatment resulted in the removal or oxidation of Al (Fe) Mn and Al (Fe-Si) Mn type intermetallic particles present in the alloys. Furthermore, electron energy loss spectroscopy analysis revealed that the during the steam treatment, the Fe enriched areas of the Al (Fe-Si) Mn type intermetallic particles were transformed into Fe2O3 and Fe3O4 phases, while energy-dispersive X-ray spectroscopy line profile measurements by scanning transmission electron microscope showed that Mn and Si were leached out and incorporated into the surrounding oxide layer. Further, the part of intermetallic phase was transformed into polycrystalline material.",

keywords = "Steam, Aluminium alloys, Intermetallic particles, Transmission electron microscopy, Electron energy loss spectroscopy",

author = "Shruti Borgaonkar and Din, {Rameez Ud} and Takeshi Kasama and Rajan Ambat",

year = "2018",

doi = "10.1016/j.tsf.2018.01.043",

language = "English",

volume = "649",

pages = "121--128",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier",

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TY - JOUR

T1 - Transformation of iron containing constituent intermetallic particles during hydrothermal treatment

AU - Borgaonkar, Shruti

AU - Din, Rameez Ud

AU - Kasama, Takeshi

AU - Ambat, Rajan

PY - 2018

Y1 - 2018

N2 - Aluminium alloys AA3102 and AA9108 were treated with high temperature steam, which resulted in the formation of an oxide layer of average thickness of 300–400 nm. Hydrothermal steam treatment resulted in the removal or oxidation of Al (Fe) Mn and Al (Fe-Si) Mn type intermetallic particles present in the alloys. Furthermore, electron energy loss spectroscopy analysis revealed that the during the steam treatment, the Fe enriched areas of the Al (Fe-Si) Mn type intermetallic particles were transformed into Fe2O3 and Fe3O4 phases, while energy-dispersive X-ray spectroscopy line profile measurements by scanning transmission electron microscope showed that Mn and Si were leached out and incorporated into the surrounding oxide layer. Further, the part of intermetallic phase was transformed into polycrystalline material.

AB - Aluminium alloys AA3102 and AA9108 were treated with high temperature steam, which resulted in the formation of an oxide layer of average thickness of 300–400 nm. Hydrothermal steam treatment resulted in the removal or oxidation of Al (Fe) Mn and Al (Fe-Si) Mn type intermetallic particles present in the alloys. Furthermore, electron energy loss spectroscopy analysis revealed that the during the steam treatment, the Fe enriched areas of the Al (Fe-Si) Mn type intermetallic particles were transformed into Fe2O3 and Fe3O4 phases, while energy-dispersive X-ray spectroscopy line profile measurements by scanning transmission electron microscope showed that Mn and Si were leached out and incorporated into the surrounding oxide layer. Further, the part of intermetallic phase was transformed into polycrystalline material.

KW - Steam

KW - Aluminium alloys

KW - Intermetallic particles

KW - Transmission electron microscopy

KW - Electron energy loss spectroscopy

U2 - 10.1016/j.tsf.2018.01.043

DO - 10.1016/j.tsf.2018.01.043

M3 - Journal article

SN - 0040-6090

VL - 649

SP - 121

EP - 128

JO - Thin Solid Films

JF - Thin Solid Films

ER -

Transformation of iron containing constituent intermetallic particles during hydrothermal treatment

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Keywords

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