Register

Create your own FREE account with surfacequery.com and we will contact you with more details about a subscription or a one-off search.

More details…

Search

Here you can perform a record search by entering keywords.

You can use the special keywords AND, OR and NOT in between words to refine your search.

This search also supports the wildcard character * and the use of quotes.

Subscription or one-off search

With a subscription or a one-off seach, the "author", "journal", "source", "date", "volume" and "page" details are presented along with the "abstract titles" and "anstracts".

More details…

1709 results. per page « 1 2 3 4 5 6 7 8 9 10 11 »

Galvanic cell between painted and bare steel.

Relevancy:  

Corrosion potential between transparent polyurethane resin-coated steel and bare steel in salt soln. was investigated. Potential difference between painted and bare steels caused galvanic corrosion of bare metal under accelerated corrosion test conditions.

Galvanic Cell for Plating Nickel

Relevancy:  

Bright or black Watts Ni can be plated without use of external current source by means of sacrificial Cu or Zn anodes. Nernst equ'n shows the potentials in the system.

Galvanic Contact Deposition of Cadmium Telluride Layers using Ammoniacal Basic Aqueous Solution.

Relevancy:  

JES

Galvanic corrosion & other corrosion mechanisms

Relevancy:  

Examples of galvanic couples are shown with large table showing open circuit potentials in flowing seawater for virtually all metals, and alloys such as stainless steel. Also disc'n of oxygen concentration cell driven corrosion and chemical corrosion.

Galvanic Corrosion and Anodic Dissolution of Iron and Iron Aluminium Alloys

Relevancy:  

Fe-Al alloys of various compositions have been prepared by electron beam melting in a vacuum. The corrosion behavior of pure Fe and Fe-Al alloys has been investigated in a solution containing chloride ions. When pure Fe and an Fe-Al alloy form a galvanic couple in 5wt% NaCl solution, both the 33.61wt% Fe and 41.19 wt% Fe-Al alloys acted as sacrificial anodes to protect the pure Fe. Conversely, the pure Fe suffered significant galvanic corrosion as a result of contact with the Fe-Al alloys such as 46.11wt% Fe-Al, 60.38 wt% Fe-Al and 74.38 wt% Fe-Al. The anodic dissolution of pure Fe proceeded by the hydroxide mechanism or the chloride mechanism in both the (xNaCl + yHCl) and (xHClO4 + yHCl) solutions (x + y =4.50 kmol m-*3). On the other hand, the anodic dissolution of both the 33.61wt% Fe and 60.38 wt% Fe-Al alloys could be interpreted by the chloride mechanism in the (xHClO4 + yHCL) solutions and low [OH*-] -(xNaCl + yHCl) solutions (log Ch*+.0). In the high [OH*-]-(xNaCl + yHCl) solutions (log Ch*+,-0.5), the inhibition effect of OH*-ions on the anodic dissolution was weak for the 33.61wt% Fe-Al alloy, whereas a significant decrease was observed in the anodic dissolution current of the 60.38 wt% Fe-Al alloy, which may be caused by passivation.

Galvanic Corrosion and Anodic Dissolution of Iron and Fe-Aluminium Alloys

Relevancy:  

Fe-Al alloys of various compositions have been prepared by electron beam melting in a vacuum. The corrosion behavior of pure Fe and Fe-Al alloys has been investigated in a solution containing chloride ions. When pure Fe and an Fe-Al alloy make a galvanic couple in 5 mass% NaCl solution, both the 33.61 mass 5 Fe and 41.19 mass% Fe-Al alloys acted as sacrificial anodes to protect the pure Fe. Conversely, the pure Fe suffered significant galvanic corrosion as a result of contact with the Fe-Al alloys such as 46.11 mass% Fe-Al, 60.38 mass% Fe-Al and 74.38 mass% Fe-Al. The anodic dissolution of pure Fe proceeded by the hydroxide mechanism or the chloride mechanism in both the (xNaCl + yHCl) and (xHClO4 + yHCl) solutions (x + y =4.50 kmol m-*3). On the other hand, the anodic dissolution of both the 33.61 mass% Fe and 60.38 mass% Fe-Al alloys could be interpreted by the chloride mechanism in the (xHClO4 + yHCL) solutions and low [OH*-] -(xNaCl + yHCl) solutions (log Ch*+.0). In the high [OH*-]-(xNaCl + yHCl) solutions (log Ch*+,-0.5), the inhibition effect of OH*-ions on the anodic dissolution was weak for the 33.61 mass% Fe-Al alloy, whereas a significant decrease was observed in the anodic dissolution current of the 60.38 mass% Fe-Al alloy, which may be caused by passivation.

Galvanic Corrosion Behaviour of Electroless Nickel in Seawater

Relevancy:  

Galvanic series of metals & alloys in seawater is listed & tables show effect of P content on electrode potential of electroless Ni. Galvanic corrosion rates of electroless Ni and steel couples are given and comments on passivity of EN are made. 6 refs.

Galvanic corrosion behaviour of electroless nickel in seawater

Relevancy:  

Electrode potentials in seawater reported for 58 metals and alloys include values for electroless Ni that signify greater passivity than indicated previously. Large potential difference between steel and electroless Ni predicts severe galvanic corrosion, which was confirmed by wt. loss data for coupled steel and electroless Ni electrodes immersed in seawater. Changes in phosphorus content in range of 6.8 to 12.3% had only slight effect on electrode potential of electroless Ni.

Galvanic Corrosion between Copper and Tantalum under CMP Conditions.

Relevancy:  

JES

Galvanic Corrosion Currents Observed during Outdoor Exposure of an Iron Nickel Cell

Relevancy:  

The pitting corrosion of Ni-plated Fe was simulated using rolled Ni and Fe wire. The currents, couple voltages and resistances of these are reported over long periods in terms of the prevailing humidity and conclusions are reached as to the factors dominating pitting rates. 13 refs. Disc'n. p 186.

Galvanic corrosion in metal-matrix composites containing semiconducting constituents.

Relevancy:  

JES

Galvanic Corrosion of Copper Silver Contacts in Electrical Switches

Relevancy:  

 

Galvanic corrosion of magnesium

Relevancy:  

SDCE (Society of Die Casting Engineers) was precursor of NADCA. Paper reports behaviour of galvanic couples between Mg (alloys) and other metals, esp. in context of fasteners, bolts with or w/o washers. Tables & histograms show AZ91D alloy in a wide range of metal/non-metal combinations, incl. nylon, aluminium, cadmium plated steel, zinc-loaded polymer, Al ceramic, IVD with salt spray data. Painting, comparison of tin, cadmium & zinc plating and factors affecting compatibility of Al & Mg are covered in depth.. Effect of iron content of Al is plotted and effect of various electrolytes also explored. 4 refs

Galvanic corrosion of Ni-Cu-Al composite coating and its anti-fouling property for metal pipeline in simulated geothermal water.

Relevancy:  

SURF A novel anti-fouling epoxy-silicone composite coating containing Ni-Cu-Al alloy powder for metal pipeline in geothermal water was fabricated based on the basic principles of galvanic corrosion. Fouling behaviors of the surface of composite coating in the simulated geothermal water were studied in comparison with stainless steel and epoxy-silicone resin coating. The results indicated that composite coating possessed a good anti-fouling performance. In the geothermal water, Ni2+, Cu2+ and Al3+ ions, originated from interface electrochemical corrosion, were released into bulk solution. These metal ions intensively inhibited nucleation and crystal growth rate of CaCO3 fouling on the surface of composite coating, and promoted precipitation of CaCO3 fouling in the bulk-solution, which could be easily washed away by flowing water. But for 304 stainless-steel and epoxy-silicone resin coating, CaCO3 fouling grew easily and adhered firmly to their surfaces, and influenced the transport efficiency of geothermal water for pipelines.

Galvanic Corrosion of Steel

Relevancy:  

Study of galvanic couples of mild steel with platinum, copper, brass, stainless steel in 3% NaCl solution. Current flows in these couples are reported. 6 refs