Stress corrosion cracking (SCC) in aerospace vehicles

Wanhill, R.J.H.; Byrnes, R.T.; Smith, C. L.

doi:10.1533/9780857093769.4.608

Cited by 19 publications

(14 citation statements)

References 9 publications

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“…Despite the unique properties of aluminum and its alloys and their ability to form thin natural oxide protective layers, their susceptibility to different kinds of local corrosions such as stress corrosion cracking, pitting corrosion, intergranular corrosion, and exfoliation corrosion under extreme conditions is a major challenge in the aerospace industry [14,15]. Moreover, the 7xxx alloys despite their popularity in the aerospace industry because of their high strength comparable to many steels, moderate fatigue strength, and reasonable machinability, their applications are restricted because of their high susceptibility to exfoliation corrosion and stress corrosion cracking (SCC) at peak-aged condition [4,10].…”

Section: Products Strength Levels Alloys/temper Applicationsmentioning

confidence: 99%

Plasma Electrolytic Oxidation Coatings on Aluminum Alloys: Microstructures, Properties, and Applications

Huang

2019

MCMS

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Section: Products Strength Levels Alloys/temper Applicationsmentioning

confidence: 99%

Plasma Electrolytic Oxidation Coatings on Aluminum Alloys: Microstructures, Properties, and Applications

Huang

2019

MCMS

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“…As an example, stress corrosion cracking caused an outdoor cast aluminum sculpture to break and fall after 65 years of being exposed to a marine industrial atmosphere (Martini et al, 2012). Stress-corrosion cracking is also an important consideration for aerospace aluminum alloys (Wanhill et al, 2011).…”

Section: Stress-corrosion Crackingmentioning

confidence: 99%

Aluminum: History, Technology, and Conservation

2019

Smithsonian Contributions to Museum Conservation

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The current volume brings together papers presented at the 2014 “Aluminum: History, Technology and Conservation” conference held at the Smithsonian Institution’s American Art Museum; the conference was followed by a hands-on workshop held at the National Air and Space Museum’s Steven F. Udvar-Hazy Center, which utilized the museum’s collections to illustrate aluminum’s use, conservation challenges, and repair techniques as well as to introduce participants to analytical techniques such as X-ray fluorescence for the identification of aluminum alloys and finishes. The three day international conference and two-day workshop were co-hosted with the Smithsonian Institution, the Foundation for the American Institute for Conservation and the International Council of Museums Committee for Conservation Metals Working Group. An unprecedented group of speakers, organizers, and sponsors made possible the first ever conservation conference solely dedicated to aluminum. The conference featured presentations by twenty-seven speakers from Europe, Asia, Australia, and North America who explored various aspects of degradation phenomena and conservation strategies for aluminum objects, from sculpture to aircraft, from nineteenth-century jewelry to underwater archaeological objects. The proceedings are divided into eight categories and represent the various themed sessions: the history and manufacturing of aluminum, corrosion and deterioration, characterization and identification, conservation of archaeological objects, conservation and use in contemporary art, conservation of architectural elements, surface treatments and inhibition, and preventative conservation.

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“…9) Therefore, cadmium and its relevant electroplating technologies still ineluctably applied on some AISI 4000 series steels. 10) Although cadmium plating has still been irreplaceable in some elds of industry, in the plating process, the over-potential of hydrogen in cathode can initiate the formation of considerable quantities of hydrogen clusters. These hydrogen compounds are prone to be trapped and hibernated onto the interfaces between coating layer and base material.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Mechanical Properties and Corrosion Behaviors of Nickel-Cadmium Duplex Electroplated AISI 4340 Steel by Using Various Solid Solution Treatments

Wang

Chang

2018

Mater. Trans.

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AISI 4340, a high strength low alloy steel employed in aeronautical structural components, are always protected by various surface treatments from failure. In order to obtain better mechanical properties and corrosion resistance economically, in this study, multiple surface treatments were applied to the AISI 4340 steel, including of nickel-cadmium duplex electroplating, chromate conversion processing, and solid solution treatments with different temperatures and duration times. To evaluate the properties of the nickel-cadmium duplex coating for various solid solution treated AISI 4340 steel, thickness and hardness measurements, salt spray tests, XRD and SEM inspections were performed. The experimental results showed that the electroplated specimens, followed by 300 350 C solid solution treatment, exhibited a distinct nickel-cadmium intermediate compound (Cd 5 Ni). The highest hardness reached was HV 0.3 582.9 after 300 C solid solution treatment for 120 min. Moreover, the anti-salt corrosion capability of the nickel-cadmium layers effectively improved with the 300 325 C solid solution treatment. However, the mechanical properties and corrosion resistance declined with the increase in temperature above 350 C because of the depletion of the cadmium layer and Cd 5 Ni compound, and the formation of cadmium oxide and chloride.

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Stress corrosion cracking (SCC) in aerospace vehicles

Cited by 19 publications

References 9 publications

Plasma Electrolytic Oxidation Coatings on Aluminum Alloys: Microstructures, Properties, and Applications

Plasma Electrolytic Oxidation Coatings on Aluminum Alloys: Microstructures, Properties, and Applications

Aluminum: History, Technology, and Conservation

Effect of the Mechanical Properties and Corrosion Behaviors of Nickel-Cadmium Duplex Electroplated AISI 4340 Steel by Using Various Solid Solution Treatments

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