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Corrosion Science
IF
6.36
Papers
11304
Papers 10931
1 page of 1,094 pages (10.9k results)
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Published on Jul 1, 2019in Corrosion Science 6.36
Romero Gomes da Silva (UFSCar: Federal University of São Carlos), C. Arana (UFSCar: Federal University of São Carlos)+ 5 AuthorsCarlos Alberto Della Rovere5
Estimated H-index: 5
(UFSCar: Federal University of São Carlos)
Abstract In the present work, the microstructure and oxidation behavior of an Fe-8.26Mn-5.25Si-12.80Cr-5.81Ni-11.84Co shape memory stainless steel (SMSS) was studied at 800 °C in air for up to 120 h. Phase changes and oxidation mechanism were discussed based on microscopy analyses, thermogravimetric measurements and thermodynamic simulations. The results show that oxidation exposure promotes the formation of the σ, χ and ferrite phases in the metallic substrate. The oxidation behavior follows a ...
Published on Jul 1, 2019in Corrosion Science 6.36
Dong Huang (NU: Northeastern University), Jiashen Lu (NU: Northeastern University)+ 2 AuthorsYibo Li (NU: Northeastern University)
Abstract The high temperature oxidation behavior of CoCrFeMnNb x Ni high-entropy alloys in air was studied. As-cast CoCrFeMnNb 0.25 Ni alloy is a duplex-phase structure of FCC plus Laves phase. The oxidation kinetics of alloys followed parabolic rate law and the corresponding oxidation rate constants were calculated. In the oxidation process, Nb plays a dual role: On the one hand, the new Laves phase at the oxidation scale/alloy interface hinders the outward diffusion of active metal cations and...
Published on Jul 1, 2019in Corrosion Science 6.36
Lan Wei (Beihang University), Wei Shao1
Estimated H-index: 1
(Beihang University)
+ 1 AuthorsChungen Zhou19
Estimated H-index: 19
(Beihang University)
Abstract Hot corrosion behaviour of SPS-processed Mo-62Si-5B (at. %) alloy in pure Na 2 SO 4 and mixture of Na 2 SO 4 + NaCl melts at 900 °C was studied. The results show that the damage process of Mo-62Si-5B alloy is deteriorated in presence of Na 2 SO 4 and Na 2 SO 4 + NaCl. After hot corrosion at 900 °C for 100 h, the mass changes of the alloy in Na 2 SO 4 and mixture of Na 2 SO 4 + NaCl are -0.24 mg/cm 2 and -0.50 mg/cm 2 , respectively. Oxides mainly contained SiO 2 and amorphous borosilica...
Published on Jul 1, 2019in Corrosion Science 6.36
J. Sayers (University of Oxford), Sergio Lozano-Perez28
Estimated H-index: 28
(University of Oxford),
Susan Ortner (National Nuclear Laboratory)
Abstract The evolution of Cr and Fe within the oxide formed on Zircaloy-4 in high-temperature pure water and a high-pH aqueous environment has been followed in detail by electron energy loss spectroscopy (EELS). The oxidation states of Cr, Fe and Zr have been determined as a function of exposure time and location in the oxide film. Much Cr and all the Fe diffuse out of the original Laves phase and precipitate within cracks or on the outer oxide surface. Cr oxidation is complete prior to transiti...
Published on Jul 1, 2019in Corrosion Science 6.36
Huiyun Tian2
Estimated H-index: 2
(Ocean University of China),
Juncheng Xin1
Estimated H-index: 1
(Ocean University of China)
+ 2 AuthorsZ. Y. Cui6
Estimated H-index: 6
(Ocean University of China)
Abstract Calcareous deposition, hydrogen permeation, and hydrogen embrittlement of E690 steel in thiosulfate-containing artificial seawater (ASW) under cathodic polarization are investigated. Sulfur species in acidic ASW eliminate the aragonite precipitation, attributed to the variation of cathodic reaction, favorable adsorption of HS- and enhanced hydrogen evolution. The maximum permeation current was achieved at -850 mV SCE due to the change of interfacial pH and promotion ability of sulfur sp...
Published on Jul 1, 2019in Corrosion Science 6.36
A. Maciej7
Estimated H-index: 7
(Silesian University of Technology),
A. Wadas (Silesian University of Technology)+ 4 AuthorsWojciech Simka19
Estimated H-index: 19
(Silesian University of Technology)
Abstract The subject of this investigation is the anodic treatment of galvanic Zn-Ni alloy coatings in alkaline solutions of selected alcohols and their characterization. The process was carried out galvanostatically at an anodic current density in the range 0.06-6.25 A/dm 2 for 2-60 minutes. The characterization of the formed coatings was based on the morphological studies (OM), determination of the chemical and phase composition (XPS and GIXD), as well as film thickness (UV-Vis spectroscopic e...
Published on Jul 1, 2019in Corrosion Science 6.36
Tianguo Wei , Ruiqiang Zhang + 7 AuthorsChuang Dong (DUT: Dalian University of Technology)
Abstract Cr-coated Zircaloy-4 samples are prepared by vacuum arc plasma deposition and their microstructure, corrosion resistance and oxidation behavior are investigated. The as-received coating is dense with no pores or defects observed. The corrosion rates of Cr coating is significantly lower than Zircaloy-4 under the condition simulating the coolant of both PWRs and BWRs. Cr coating can prevent zirconium from harsh and fatal oxidation in air. Bubbles are found on the surface of the coated sam...
Published on Jul 1, 2019in Corrosion Science 6.36
S.K. Kairy7
Estimated H-index: 7
(Monash University, Clayton campus),
Baptiste Rouxel1
Estimated H-index: 1
(Deakin University)
+ 4 AuthorsNick Birbilis57
Estimated H-index: 57
(Monash University, Clayton campus)
Abstract The microstructural variation caused by Sc and Zr additions to a 2xxx series Al-Cu alloy was studied in the context of corrosion and hardness. The addition of Sc and Zr led to microstructural refinement, a decrease in corrosion current density, and a reduction in the extent of pitting and intergranular corrosion; whilst hardness increased. Such an improvement in properties was attributed to the variation of alloy microstructure. It was also noted that an often unreported W-phase (Al x C...
Published on Jul 1, 2019in Corrosion Science 6.36
Patrick T. Brewick2
Estimated H-index: 2
(NRL: United States Naval Research Laboratory),
Virginia G. DeGiorgi7
Estimated H-index: 7
(NRL: United States Naval Research Laboratory)
+ 1 AuthorsSiddiq Qidwai1
Estimated H-index: 1
(NSF: National Science Foundation)
Abstract This work explores how microstructure influences stress distributions around corrosion pits through computational modeling that captures crystallographic orientation dependencies in corrosion potential and mechanical response. Several sites are considered for initial corrosion pits to investigate the resultant variation in pit geometry and stress quantities. Comparisons to a homogeneous, semi-circular model show that microstructure-sensitive cases can have much larger maximum stress mag...
Published on Jul 1, 2019in Corrosion Science 6.36
W. Kai6
Estimated H-index: 6
(NTOU: National Taiwan Ocean University),
F.P. Cheng3
Estimated H-index: 3
(NTOU: National Taiwan Ocean University)
+ 5 AuthorsC.J. Wang (NTUST: National Taiwan University of Science and Technology)
Abstract The oxidation behavior of a Ni 2 FeCoCrAl 0.5 high-entropy superalloy was studied at 900 °C in O 2 -containing environments over the oxygen pressure range of 10 - 1.0 × 10 5 Pa. The superalloy oxidized parabolically at PO 2 2.1 × 10 4 Pa, having its oxidation rates increasing with increasing oxygen pressure. An exclusive α-Al 2 O 3 layer formed on the alloy with its thickness increased with oxygen pressure. On the contrast, a mass-lost kinetics was observed and heterophasic scales of in...
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