scholarly journals CORRELATION BETWEEN AGEING HEAT TREATMENTS, MICROSTRUCTURE AND STRESS CORROSION PROPERTIES OF Al-Li-Cu-Mg ALLOYS

1987 ◽  
Vol 48 (C3) ◽  
pp. C3-871-C3-879 ◽  
Author(s):  
M. AHMAD
Keyword(s):  
Stress Corrosion ◽  
Heat Treatments ◽  
Mg Alloys ◽  
Corrosion Properties

scholarly journals Stress-corrosion resistance of the EN AW-AlZn5Mg1,5CuZr alloy in different heat treatment states

2013 ◽  
Vol 20 (4) ◽  
pp. 39-44
Author(s):  
Lesław Kyzioł
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Aluminium Alloy ◽  
Stress Corrosion ◽  
Alloy System ◽  
Mg Alloys ◽  
Corrosion Properties ◽  
Chemical Constitution ◽  
Stress Corrosion Resistance ◽  
Mechanical And Corrosion Properties

ABSTRACT The effect of heat treatment of the plastically worked 7000 series Al-Zn-Mg aluminium alloy system on its stress-corrosion resistance is examined. For the same chemical constitution, the effect of heat treatment on mechanical and corrosion properties of Al-Zn-Mg alloys systems is remarkable. It was proved that a parameter having significant effect on corrosion properties of the alloy is the rate of alloy cooling after heat treatment. This conclusion is confirmed by observation of structural forms which fully reflect mechanical and corrosion properties of the alloy.

scholarly journals Enhancing the Mechanical Properties of Biodegradable Mg Alloys Processed by Warm HPT and Thermal Treatments

Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6399
Author(s):  
Andrea Mizelli-Ojdanic ◽  
Jelena Horky ◽  
Bernhard Mingler ◽  
Mattia Fanetti ◽  
Sandra Gardonio ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermomechanical Processing ◽  
High Pressure Torsion ◽  
Heat Treatments ◽  
Mg Alloys ◽  
Processing Route ◽  
Corrosion Properties ◽  
Biodegradable Implant ◽  
Significant Strength ◽  
Low Temperature Processing

In this study, several biodegradable Mg alloys (Mg5Zn, Mg5Zn0.3Ca, Mg5Zn0.15Ca, and Mg5Zn0.15Ca0.15Zr, numbers in wt%) were investigated after thermomechanical processing via high-pressure torsion (HPT) at elevated temperature as well as after additional heat treatments. Indirect and direct analyses of microstructure revealed that the significant strength increases arise not only from dislocations and precipitates but also from vacancy agglomerates. By contrast with former low-temperature processing routes applied by the authors, a significant ductility was obtained because of temperature-induced dynamic recovery. The low initial values of Young’s modulus were not significantly affected by warm HPT-processing. nor by heat treatments afterwards. Also, corrosion resistance did not change or even increase during those treatments. Altogether, the study reveals a viable processing route for the optimization of Mg alloys to provide enhanced mechanical properties while leaving the corrosion properties unaffected, suggesting it for the use as biodegradable implant material.

scholarly journals Effects of corrosion environments on stress corrosion cracking of Al-Zn-Mg alloys

1970 ◽  
Vol 20 (7) ◽  
pp. 331-335
Author(s):  
Tsuyoshi HIRAMATSU ◽  
Yoshimitsu MIYAGI ◽  
Kiyoshi NAGAO ◽  
Makoto SHIMADA
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Mg Alloys

Electrochemical and Stress Corrosion Properties of Duplex Stainless Steels Modified with Tungsten Addition

CORROSION ◽  
1998 ◽  
Vol 54 (11) ◽  
pp. 910-921 ◽  
Author(s):  
K. Y. Kim ◽  
P. Q. Zhang ◽  
T. H. Ha ◽  
Y. H. Lee
Keyword(s):  
Stress Corrosion ◽  
Stainless Steels ◽  
Duplex Stainless Steels ◽  
Corrosion Properties

Behavior Analysis of Environmental Hydrogen in High-Magnesium Al-Mg Alloys by Hydrogen Microprint Technique

2007 ◽  
Vol 539-543 ◽  
pp. 475-480 ◽  
Author(s):  
T. Izumi ◽  
Goroh Itoh
Keyword(s):  
Stress Corrosion ◽  
Behavior Analysis ◽  
Stress Corrosion Cracking ◽  
Mg Alloys ◽  
The Other ◽  
Corrosive Environment ◽  
Silver Particles ◽  
Nacl Solution ◽  
Hydrogen Atoms ◽  
Al Mg Alloys

High-magnesium Al-Mg alloys are known to be sensitive to stress corrosion cracking involving environmental hydrogen, hydrogen invading from the corrosive environment. In this study, the behavior of the environmental hydrogen in Al-6%Mg and Al-8%Mg binary alloy sheets stretched by 10% during exposure to 3.5%NaCl solution has been investigated by means of hydrogen microprint technique. Microprint image is observed on one surface while the other surface is exposed to the solution. In both alloys, the silver particles corresponding to the sites where hydrogen atoms are emitted from the inside of the sheets are shown on the slip lines. It is shown that the hydrogen atoms are transported with moving dislocations in the alloys.

Effects of Heat Treatments on the Tensile and Corrosion Properties of Zircaloy 2

2009 ◽  
pp. 124-124-20
Author(s):  
J. G. Goodwin ◽  
L. S. Rubenstein ◽  
F. L. Shubert
Keyword(s):  
Heat Treatments ◽  
Corrosion Properties
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