Characterization of Zr-Containing Dispersoids in Al-Zn-Mg-Cu Alloys by Small-Angle Scattering

15 Pages Posted: 1 Aug 2022

See all articles by Mohammad Taha Honaramooz

Mohammad Taha Honaramooz

Independent

Roland Morak

affiliation not provided to SSRN

Stefan Pogatscher

Montanuniversität Leoben - Christian Doppler Laboratory for Advanced Aluminum Alloys

Gerhard Fritz-Popovski

affiliation not provided to SSRN

Thomas Kremmer

Montanuniversität Leoben - Chair of Nonferrous Metallurgy

Thomas Meisel

Montanuniversität Leoben

Johannes Albert Österreicher

Austrian Institute of Technology

Aurel Arnoldt

affiliation not provided to SSRN

Oskar Paris

Montanuniversität Leoben

Abstract

Small-Angle X-ray Scattering (SAXS) and Small-Angle Neutron Scattering (SANS) were compared to Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) in their capability to characterize Zr-containing dispersoids in aluminum alloys. It is demonstrated that both scattering techniques are suitable tools to characterize dispersoids in a multi-phase industrial 7xxx series aluminum alloy. While SAXS is more sensitive than SANS due to the high electron density of Zr-containing dispersoids, SANS has the advantage of probing a much larger sample volume. The combination of both allowed verifying that the scattering contribution from dispersoids can be safely separated from other precipitate phases like S-phase or GP-zones. Size distributions obtained from SAXS/SANS and TEM and SEM show good agreement taking the resolution-limited restrictions of the different techniques properly into account.

Keywords: Small-Angle Scattering, Al3Zr, dispersoid, Al-Zn-Mg-Cu, size distribution

Suggested Citation

Honaramooz, Mohammad Taha and Morak, Roland and Pogatscher, Stefan and Fritz-Popovski, Gerhard and Kremmer, Thomas and Meisel, Thomas and Österreicher, Johannes Albert and Arnoldt, Aurel and Paris, Oskar, Characterization of Zr-Containing Dispersoids in Al-Zn-Mg-Cu Alloys by Small-Angle Scattering. Available at SSRN: https://ssrn.com/abstract=4177888 or http://dx.doi.org/10.2139/ssrn.4177888

Roland Morak

affiliation not provided to SSRN ( email )

No Address Available

Stefan Pogatscher

Montanuniversität Leoben - Christian Doppler Laboratory for Advanced Aluminum Alloys ( email )

Gerhard Fritz-Popovski

affiliation not provided to SSRN ( email )

No Address Available

Thomas Kremmer

Montanuniversität Leoben - Chair of Nonferrous Metallurgy ( email )

Leoben
Austria

Thomas Meisel

Montanuniversität Leoben ( email )

Johannes Albert Österreicher

Austrian Institute of Technology

Donau-City-Strasse 1
Vienna, 1220
Austria

Aurel Arnoldt

affiliation not provided to SSRN

Oskar Paris (Contact Author)

Montanuniversität Leoben ( email )

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