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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 64 for “"Corrosion behavior"”.
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Corrosion Behavior of Nuclear Waste Storage Canister Materials
… steel containers and accelerate the oxidation (corrosion) of steel. It is of interest to identify if pertechnetate anions pose a corrosion hazard to the mild steel nuclear waste storage tanks, under the conditions of the storage sites, as that can accelerate the degradation of the tanks and lead …
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Evaluation of cracking and localized corrosion behavior of cladding materials
… is focused on the evaluation of stress corrosion cracking (SCC), hydrogen embrittlement (HE) and localized corrosion (pitting and crevice) susceptibility of zircaloy-2 and zircaloy-4 in neutral and acidic solutions at 30, 60, 90°C. Constant-load and slow-strain-rate (SSR) testing …
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Corrosion Behavior of ASTM A1010 Stainless Steel for Applications in Bridge Components
… of this research was the investigation of the corrosion behavior of a low chromium-content stainless steel, ASTM A1010, for use in steel bridge members. This stainless steel has been marketed as a potential replacement for conventional structural steels for bridges located in highly-corrosive …
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Corrosion behavior and mechanism of metallic biomaterials produced by laser powder bed fusion
… rate in the manufacturing process. However, the corrosion resistance of some produced alloys has been proved to have inferior corrosion resistance in some harsh environments. Although the corrosion mechanism of the L-PBFproduced alloys has been studied gradually in recent, and the results are …
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Effect of heat treatment on deformation and corrosion behavior of Type 422 stainless steel
… at elevated temperatures. The results of stress corrosion cracking tests performed by slow strain rate technique in the 90°C acidic solution revealed higher failure stress and reduced ductility to some extent for specimens tempered for longer time. The results of localized corrosion studies …
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Corrosion Behavior of Potential Structural Materials for use in Nitrate Salts Based Solar Thermal Power Plants
… reliability. This study investigates the corrosion behavior of structural alloys and electrochemical testing in molten nitrate salts at three temperatures common to CSP plants. Corrosion behavior was evaluated using gravimetric and inductively-coupled plasma optical emission spectroscopy …
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Design, Material and Surgical Assembly Effects on Fretting Corrosion Behavior of Modular Tapers in Orthopedic Implants
<p>Mechanically assisted crevice corrosion (MACC) has become a significant problem in the orthopedic device industry, particularly in modular devices with metal-on-metal (MoM) tapered interfaces. Oxide film abrasion, leading to fretting corrosion in the presence of a crevice, accelerates the …
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Mullite Membrane Reference Electrode Evaluation and Application for Ni-Cr Corrosion Behavior in High Temperature Chloride Salts
… an on-line monitoring system of Ni-Cr alloy corrosion in chloride salt. A mullite tube used as the membrane of a Ni(II)/Ni reference electrode in molten MgCl2-NaCl-KCl is studied. The performance of two different membrane thicknesses (1.325mm and 0.255mm) was studied in temperature ranges …
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Corrosion Behavior of Corrosion-Resistant Steel Reinforcements in High and Ultra-High Performance Concrete in Chloride Attack Environments
Corrosion of reinforcing steel is one of the most important concerns for reinforced concrete (RC) structures. The use of corrosion-resistant steel reinforcements and advanced concrete is one potential solution. This dissertation presents the research findings of the corrosion behavior of …
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A multiscale approach to controlling corrosion in Magnesium-based materials: nanoparticle alloying, hybrid coatings, and predictive modeling
… recent research has focused on tailoring the corrosion behavior of magnesium using alloying, coatings, and various fabrication processes to suit specific clinical needs. In this work, we explore two distinct approaches to enhance the performance of magnesium-based implants. The first approach …
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Corrosion susceptibility of thin films
The corrosion susceptibility of Al thin-film metallizations in an aqueous solution containing chlorine was measured. DC polarization techniques were used to determine the corrosion behavior of Al thin-film metallizations, Al-alloy thin-film metallizations and Al thin-film metallizations deposited …
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The effects of simulated inflammatory conditions on the corrosion and fretting corrosion of CoCrMo alloy
<p>In vivo corrosion of CoCrMo alloy and its potential adverse effects on the body have been recognized as major concerns in recent years. While the underlying concepts of general and mechanically-assisted corrosion have been well documented, recent report of inflammatory cell-induced corrosion …
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Understanding the Corrosion of Low-Voltage Al-Ga Anodes
… destabilize this oxide film and allow for active corrosion. The mechanism of how Ga activates Al is still not well-known, though there are prevailing proposals. A previous study noted a difference in behavior between Al-Ga master heats and the alloys that were later produced by re-melting them. …
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Assessing and Enhancing Seawater Corrosion Performance of Aluminum Alloy 7075 and 2024 Additive Repairs Produced by Cold Gas Dynamic Spray Deposition
… purpose of this research is to investigate the corrosion behavior of cold sprayed (CS) aluminum alloys 2024 and 7075 in an immersed seawater environment, and improve understanding of CS processing-microstructure-corrosion property relationships. As a low temperature additive spray technique, CS …
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Hydrogen embrittlement of Aluminum-Lithium alloys
… of temperature and notch orientation on fracture behavior. Disk rupture tests were used with various gases (hydrogen and nitrogen) and three strain rates (increment of 50 psi every 20, 200 and 300 seconds) and two temperatures (room and liquid nitrogen temperatures) to determine the effects of …
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High-temperature corrosion study of alloys in molten MgCl₂-KCl eutectic salt
… properties. This research investigates the corrosion behavior and protection strategies of Haynes 230 (H230), Incoloy 800H (800H), and Stainless Steel 316 (SS316) in MgCl₂-KCl molten salt at high temperature. First of all, the corrosion rates of different alloys are determined by performing …
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Evaluation of laser surface melting to mitigate chloride stress corrosion cracking in an austenitic stainless steel
… surface melting to mitigate chloride stress corrosion cracking (See) of type 304 stainless steel. The effects of laser surface melting on microstructure, mechanical state, and corrosion behavior were examined. The major effect of laser surface melting of 304 stainless steel was found to be …
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Effect of heat treatment on the mechanical and corrosion properties of the CoCrNiFeAl HEAs
… these alloys, as well as their electrochemical corrosion behavior. A thermodynamic model was implemented to predict the performance of the material. The results of this study provide a good insight into the potential of CoCrNiFeAl HEAs to be employed in different applications, as the heat …
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Corrosion modeling of magnesium-based medical implants
… is a highly active metal and has a high corrosion rate in aqueous environments especially body fluids. Considerable research was done to develop numerical models towards an inexpensive designing tool to assess the change of the implant’s geometry and mechanical strength during …
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