Effects of Different Temper and Aging Temperature on the Precipitation Behavior of Al 5xxx Alloy

Gaosong Yi; David A. Cullen; Alexander T. Derrick; Yakun Zhu; Michael L. Free

doi:10.1002/9781119093435.ch60

Effects of Different Temper and Aging Temperature on the Precipitation Behavior of Al 5xxx Alloy

Gaosong Yi, David A. Cullen, Alexander T. Derrick, Yakun Zhu, Michael L. Free

Materials MicroAnalysis

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

1 Scopus citations

Abstract

Al 5xxx alloys can become sensitized to intergranular corrosion (IGC) and stress corrosion cracking (SCC) because of the precipitation of intergranular β phase (Al₃Mg₂) when exposed to elevated temperatare for sufficient time. In this study, ASTM G67 mass loss tests of Al 5083 HI 31, HI 16 and Al 5456 HI 16 aged at 323 K and 343 K for different times were conducted. Hie average grain size and grain boundary thickness of tlie three alloys were obtained from Electron Backscattered Diffraction (EBSD) images, and tlie classical nucleation theory was used to predict the precipitation behavior. Transmission Electron Microscopy (TEM) and Energy Dispersive X-ray Spectroscopy (EDS) were used to characterize Al 5083 HI 16 aged at different temperature for different times. Scanning Electron Microscopy (SEM) images of A15083H131 etched for different times were used to evaluate the corrosion behavior of different grain boundaries.

Original language	English
Title of host publication	Light Metals 2015
Publisher	Wiley Blackwell
Pages	359-365
Number of pages	7
ISBN (Electronic)	9781119093435
ISBN (Print)	9781119082446
DOIs	https://doi.org/10.1002/9781119093435.ch60
State	Published - Feb 20 2015

Keywords

Al 5xxx alloy
EBSD
Intergranular precipitates
Temper

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10.1002/9781119093435.ch60

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title = "Effects of Different Temper and Aging Temperature on the Precipitation Behavior of Al 5xxx Alloy",

abstract = "Al 5xxx alloys can become sensitized to intergranular corrosion (IGC) and stress corrosion cracking (SCC) because of the precipitation of intergranular β phase (Al3Mg2) when exposed to elevated temperatare for sufficient time. In this study, ASTM G67 mass loss tests of Al 5083 HI 31, HI 16 and Al 5456 HI 16 aged at 323 K and 343 K for different times were conducted. Hie average grain size and grain boundary thickness of tlie three alloys were obtained from Electron Backscattered Diffraction (EBSD) images, and tlie classical nucleation theory was used to predict the precipitation behavior. Transmission Electron Microscopy (TEM) and Energy Dispersive X-ray Spectroscopy (EDS) were used to characterize Al 5083 HI 16 aged at different temperature for different times. Scanning Electron Microscopy (SEM) images of A15083H131 etched for different times were used to evaluate the corrosion behavior of different grain boundaries.",

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T1 - Effects of Different Temper and Aging Temperature on the Precipitation Behavior of Al 5xxx Alloy

AU - Yi, Gaosong

AU - Cullen, David A.

AU - Derrick, Alexander T.

AU - Zhu, Yakun

AU - Free, Michael L.

PY - 2015/2/20

Y1 - 2015/2/20

N2 - Al 5xxx alloys can become sensitized to intergranular corrosion (IGC) and stress corrosion cracking (SCC) because of the precipitation of intergranular β phase (Al3Mg2) when exposed to elevated temperatare for sufficient time. In this study, ASTM G67 mass loss tests of Al 5083 HI 31, HI 16 and Al 5456 HI 16 aged at 323 K and 343 K for different times were conducted. Hie average grain size and grain boundary thickness of tlie three alloys were obtained from Electron Backscattered Diffraction (EBSD) images, and tlie classical nucleation theory was used to predict the precipitation behavior. Transmission Electron Microscopy (TEM) and Energy Dispersive X-ray Spectroscopy (EDS) were used to characterize Al 5083 HI 16 aged at different temperature for different times. Scanning Electron Microscopy (SEM) images of A15083H131 etched for different times were used to evaluate the corrosion behavior of different grain boundaries.

AB - Al 5xxx alloys can become sensitized to intergranular corrosion (IGC) and stress corrosion cracking (SCC) because of the precipitation of intergranular β phase (Al3Mg2) when exposed to elevated temperatare for sufficient time. In this study, ASTM G67 mass loss tests of Al 5083 HI 31, HI 16 and Al 5456 HI 16 aged at 323 K and 343 K for different times were conducted. Hie average grain size and grain boundary thickness of tlie three alloys were obtained from Electron Backscattered Diffraction (EBSD) images, and tlie classical nucleation theory was used to predict the precipitation behavior. Transmission Electron Microscopy (TEM) and Energy Dispersive X-ray Spectroscopy (EDS) were used to characterize Al 5083 HI 16 aged at different temperature for different times. Scanning Electron Microscopy (SEM) images of A15083H131 etched for different times were used to evaluate the corrosion behavior of different grain boundaries.

KW - Al 5xxx alloy

KW - EBSD

KW - Intergranular precipitates

KW - Temper

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EP - 365

BT - Light Metals 2015

PB - Wiley Blackwell

ER -

Effects of Different Temper and Aging Temperature on the Precipitation Behavior of Al 5xxx Alloy

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Keywords

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