Evaluation of the mechanical properties and corrosion resistance of Al-2.5 Mg-Cr alloys
Article Abstract:
The mechanical properties and seawater corrosion resistance of Al-2.5Mg alloys with an additional 0.1 to 0.3 weight percent chromium are evaluated. Alloy specimens used in the study were machined from 1000 mm by 80 mm by 2 mm sheets following ASTM B557M standards. ASTM weight loss procedure G-69 was used in estimating the weight loss variation with time. Results show that chromium increases the hardness, strain-hardening coefficient, tensile strength and true stress at fracture of Al-2.5 Mg alloys. The strain-hardened H18 alloys have high ultimate strength, Young's modulus and strain-hardening coefficients than the annealed alloys.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1992
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The electrical transport properties of shape memory alloys under a stress state
Article Abstract:
The electrical resistance (ER) of shape memory alloys under an increasing stress condition as well as the significance of the transformation strain related to the stress induced transformation and concomitant electronic diversity change at the transformation are analyzed. The ER change produced by deformation appears as physical property connected with the deformation that is suitable to act as feedback. Suggestions on how to maximize the effect of this relationship are discussed.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1999
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Corrosion fatigue of AZ91E-T6 cast magnesium alloy in a 3.5 percent NaCl aqueous environment
Article Abstract:
The corrosion fatigue resistance of AZ91E-T6 cast magnesium alloy is decreased in 3.5% NaCl solution with respect to air for strain-controlled low cycle fatigue tests, constant amplitude fatigue crack growth tests and variable amplitude loading tests. A quasi-cleavage fatigue crack growth structure is detected in all fatigue tests and in both environments. For the strain ratio of 0 and -2, considerable stress relaxation occurs.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1995
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