Hydrogen Evolution Behavior in an Al-Mg-Si Alloy Affected by Hydrogen Embrittlement

Keitaro Horikawa; Hidetoshi Kobayashi

doi:10.4028/www.scientific.net/MSF.561-565.203

Paper Titles

In Situ Investigation of Orientation Changes during Heating of Extruded AZ31
p.183

Influence of Extrusion Temperature on Microstructure, Texture and Fatigue Performance of AZ80 and ZK60 Magnesium Alloys
p.187

Development of New Types of Magnesium Alloys Containing Sr or RE Elements
p.191

Structure and Mechanical Properties of Mg-Zn-RE System Alloys
p.199

Hydrogen Evolution Behavior in an Al-Mg-Si Alloy Affected by Hydrogen Embrittlement
p.203

Tensile Properties and Deformation-Fracture Behavior of Ti-6Al-4V Alloy at Cryogenic Temperature
p.207

Study on Al Alloy Surfaces Treated by Ion Beams
p.211

Determination of Sr Content in Mg-Sr Alloys Using Faas
p.215

High Temperature Tensile Properties of a Mg-8%Li Alloy Shear-Strained by Torsion Working and ECAP
p.219

HomeMaterials Science ForumMaterials Science Forum Vols. 561-565Hydrogen Evolution Behavior in an Al-Mg-Si Alloy...

Hydrogen Evolution Behavior in an Al-Mg-Si Alloy Affected by Hydrogen Embrittlement

Abstract:

Hydrogen evolution behavior of an Al-Mg-Si alloy affected by hydrogen embrittlement was investigated using a tensile testing machine equipped with quadruple mass spectrometer in an ultrahigh vacuum chamber. Plate type test pieces were solutionized at 540°C for 1h, quenched in water and then aged at 175°C for 8h or 240h. Some of the aged test pieces were pre-deformed in air with a relative humidity of 90% at a slow strain rate of 8.3x10-7s-1 to introduce hydrogen from the testing atmosphere. As a result of the tensile test with mass spectrometry, it was shown that hydrogen was highly evolved at the moment of fracture. The area fraction of intergranular fracture decreased when the aging condition was changed from peak-aged to over-aged, which was in agreement with the decrease in the amount of hydrogen evolved at the moment of fracture.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 561-565)

Pages:

203-206

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.561-565.203

Citation:

Cite this paper

Online since:

October 2007

Authors:

Keitaro Horikawa, Hidetoshi Kobayashi

Keywords:

Fracture, Hydrogen Embrittlement, Mass Spectrometry, Slow Strain Rate Testing (SSRT), Ultra-High Vacuum

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] S. Kuramoto et al., J. Japan Inst. Metals, Vol. 52, No. 6 (2002), p.250.

Google Scholar

[2] S. Osaki et al., Journal of Japan Institute of Light Metals, Vol. 56, No. 2 (2006), p.121.

Google Scholar

[3] M. Kanno et al., J. Japan Inst. Metals, Vol. 59, No. 3 (1995), p.296.

Google Scholar

[4] G. A. Young and J. R. Scully, Hydrogen Effects on Material Behavior and Corrosion Deformation Interactions, Edited by Moody N.R. et al., TMS, (2003), p.893. 0 0. 5 1. 0 Displacement, d /mm.

Google Scholar

[1] 5 10-9 10-8 10-7 10-6 H2 Ion Current, i /A 0.

[1] 5.

[2] 5 Load (kN).

[1] 0.

[2] 0 10-9 10-8 10-7 10-6 H2 Ion Current, i /A 0 0. 5 1. 0 Displacement, d /mm.

[1] 5 0.

[1] 5.

[2] 5 Load (kN).

[1] 0.

[2] 0 (a) Aging: OA # (b) Aging: OA # (with pre-deformation by SSRT) Fig. 4 Hydrogen ion current and load vs. displacement curves in over-aged Al-Mg-Si alloys without pre-deformation (a) and with pre-deformation (6%) by SSRT (b).

Google Scholar