نتایج جستجو برای: corrosion behavior

تعداد نتایج: 646514  

2016
Huabing Li Enze Zhou Dawei Zhang Dake Xu Jin Xia Chunguang Yang Hao Feng Zhouhua Jiang Xiaogang Li Tingyue Gu Ke Yang

Microbiologically Influenced Corrosion (MIC) is a serious problem in many industries because it causes huge economic losses. Due to its excellent resistance to chemical corrosion, 2707 hyper duplex stainless steel (2707 HDSS) has been used in the marine environment. However, its resistance to MIC was not experimentally proven. In this study, the MIC behavior of 2707 HDSS caused by the marine ae...

2009
S. Zor E. Yakar

Cyclic voltammetric studies were carried out on the deposition of polyaniline on pure aluminum from oxalic acid solution with and without different anions (CO3, SO3, SO4, DBS) and contribution of these anions to lyaniline film formation was investigated. Corrosion behavior of polyaniline coated aluminum in oxalic acid solution with and without different anions (CO3, SO3, SO4, DBS) has been inve...

2015
Soon-Hyeok Jeon Haeng Hur Alan Meier

The galvanic corrosion behavior of Alloy 690 coupled with magnetite has been investigated in an alkaline solution at 30 °C and 60 °C using a potentiodynamic polarization method and a zero resistance ammeter. The positive current values were recorded in the galvanic couple and the corrosion potential of Alloy 690 was relatively lower. These results indicate that Alloy 690 behaves as the anode of...

Journal: :The European journal of prosthodontics and restorative dentistry 2007
Constaninos Yfantis Dimitrios Yfantis Jane Anastassopoulou Theophilos Theophanides

In this study we examined the hypothesis based on relevant literature survey that the in vitro corrosion behavior of a Cobalt-chrome dental casting alloy for metal-ceramic restorations is better than that of a Nickel-chrome dental casting alloy. The corrosion released metal ions were analysed by Inductively Coupled Plasma-Atomic Emission Spectroscopy. Moreover, the specimens were electrochemica...

2001
F. Pedraza

Soft X-ray absorption spectroscopy (XAS) has been used to study the influence of Si ion implantation on the passive layer of AISI 304 stainless steel, as well as on its high-temperature oxidation behaviour. Ion implantation is a usual technique to improve the corrosion and oxidation resistance of steels. To study the effects of ion implantation on the room temperature corrosion behavior of AISI...

2000
Fushuang Cui A. A. Sagüés Rodney G. Powers

Stainless steel clad rebar (SCR) was investigated because it may become a cost-effective means of controlling corrosion in concrete under very aggressive environments. Sound SCR (316L cladding) resisted corrosion in saturated Ca(OH)2 solution (SCS) with up to 5 wt% chloride. Cladding breaks on SCR induced significant corrosion of exposed underlying CS in SCS with only 1 wt% chloride. A computer...

2009
M. M. Al-Abdallah

The electrochemical behavior of copper in 0.05 M HCl and 0.05 M NaCl carried out at open-circuit potential and at constant anodic potential after one hour has been investigated using electrochemical impedance spectroscopy (EIS) at 20 °C, 40 °C and 60 °C. The formation of copper chloride (CuCl) film does not protect copper from dissolution in the chloride media. The physical properties of the pa...

Journal: :iranian journal of hydrogen and fuel cell 0
ali hedayati department of engineering sciences and mathematics, luleå university of technologies saeed asghari institute of materials and energy, iranian space research center amir hosein alinoori institute of materials and energy, iranian space research center morteza koosha institute of materials and energy, iranian space research center esa vuorinen department of engineering sciences and mathematics, luleå university of technologies

in the polymer electrolyte membrane fuel cells (pemfcs), low corrosion resistance and high interfacial contact resistance (icr) are two controversial issues in usage of aisi 316l stainless steel as a metallic bipolar plate. for solving these problems, investigation and development of different coatings and/or surface treatments are inevitable. corrosion behavior and icr of aisi 316l specimens c...

2017
J. O’ Sullivan

In addition to meeting the requirements of ultra high purity bulk gas distribution systems, the distribution of specialty and corrosive gases necessitates that the gas distribution system is corrosion resistant and does not exhibit any catalytic behavior. Vereecke1 and coworkers reported that reaction between reactive gases and materials of construction employed in gas delivery systems can resu...

2003
M. Braic S. Zamfir M. Balaceanu V. Braic G. Pavelescu A. Zamfir A. Vladescu

The corrosion behavior of TiN coated 316L stainless steel in an artificial physiological solution was investigated by means of an electrochemical test. Two different PVD methods were used for film deposition: cathodic arc and reactive magnetron sputtering. The dependence of the corrosion resistance on the main deposition parameters (nitrogen pressure, substrate bias) was analyzed. For a better ...

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