International and National Thermal Spray Standards Program with Comment on Those for the Corrosion Protection of Steel and Reinforced Concrete

1996 ◽  
Author(s):  
R.A. Sulit
Keyword(s):  
Reinforced Concrete ◽  
Corrosion Protection ◽  
Thermal Spray ◽  
Thermal Spraying ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
Test Methods ◽  
Current Status ◽  
Work Program ◽  
Society Committee

Abstract A review of selected national and international thermal spraying guides and specifications for the preservation of steel and reinforced concrete using thermal spray coating of aluminum, zinc and their alloys is presented. The work program and current status of the US national organizations contributing to and developing test methods and process standards are summarized along with those of ISOATC 107/SC 5. The Secretariat of the ISO/TC 107/SC 5, Thermal Spraying was transferred from AFNOR, France, to ANSI, US, in June 1995. ANSI, in turn, designated AWS to be its delegate in thermal spray matters. The work program of the newly formed SSPC/NACE/AWS Tri-Society Committee on thermal spray coatings for the corrosion protection of steel is summarized.

Thermal Spray for Corrosion Control: A Competitive Edge for Commercial Shipbuilding

1995 ◽  
Vol 11 (01) ◽  
pp. 53-55
Author(s):  
Frank S. Rogers
Keyword(s):  
Thermal Spray ◽  
Marine Environment ◽  
Thermal Spraying ◽  
Spray Coating ◽  
Cost Effective ◽  
Thermal Spray Coating ◽  
Coating System ◽  
Protection Mechanism ◽  
Arc Spray ◽  
Spray System

Thermal spraying of steel with aluminum to protect it from corrosion is a technology that has been proven to work in the marine environment. The thermal spray coating system includes a paint sealer that is applied over the thermally sprayed aluminum; this extends the service life of the coating, and provides color to the end product. The thermal spray system protects steel both through the principle of isolation (as in painting) and galvanization (as in galvanizing). With this dual protection mechanism, steel is protected from corrosion even when the coating is damaged. The thermal sprayed aluminum coating system has proven to be the most cost-effective corrosion protection system for the marine environment. Until recently, however, the initial cost of application has limited its use for general application. Today a new arc spray technology has reduced the application cost of thermal spraying aluminum to below that of painting. Commercial shipbuilders could use this technology to enhance their market position in the marine industry.

An Assessment of Thermal Spray Coating Technologies for High Temperature Corrosion Protection

1997 ◽  
Vol 251-254 ◽  
pp. 809-816 ◽  
Author(s):  
G.R. Heath ◽  
P. Heimgartner ◽  
G. Irons ◽  
Robert D. Miller ◽  
Stefan Gustafsson
Keyword(s):  
High Temperature ◽  
Corrosion Protection ◽  
Thermal Spray ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
High Temperature Corrosion

The Comparison Study on Abrasive and Erosive Resistance Properties of Thermal Spray Coatings

2020 ◽  
Vol 901 ◽  
pp. 49-54
Author(s):  
Jirasak Tharajak ◽  
Noppakun Sanpo
Keyword(s):  
Thermal Spray ◽  
Thermal Spraying ◽  
Spray Coating ◽  
Solid Material ◽  
Thermal Spray Coating ◽  
Comparison Study ◽  
Spray Coatings ◽  
Wide Range ◽  
Resistance To Wear ◽  
Sprayed Coating

Thermal spraying is a technology which improves and restores the surface of a solid material. The process can be used to apply coatings to a wide range of materials and components, in order to provide resistance to wear, erosion, cavitation, corrosion, abrasion or heat. In this paper, the study of abrasive and erosive properties of Cr3C2/20%NiCr and FeCrB + Al thermal sprayed coating samples were focused. It was revealed that both received thermal spray coating samples show outstanding abrasive and erosive resistance properties.

Thermal Spray Alternatives for Electroplated Chromium

1996 ◽  
Author(s):  
G. Irons ◽  
W. Kratochvil ◽  
M. Schroeder ◽  
C. Brock
Keyword(s):  
Thermal Spray ◽  
Thermal Spraying ◽  
Spray Coating ◽  
Ceramic Materials ◽  
Thermal Spray Coating ◽  
Waste Products ◽  
Spray Process ◽  
Arc Spray ◽  
Chromium Plating ◽  
Thermal Spray Processes

Abstract Many thermal spray coatings provide excellent wear and corrosion resistance, while providing die same surface finish offered by chromium plating. In the past, the choice between thermal spraying or plating was usually based on part size, area to be coated, cost and familiarity with one or the other method. Today, the thermal spray processes are showing greater popularity due to: ♦ New thermal spray processes and coatings with better properties ♦ Increased chromium plating costs due to stricter regulations on the process and the disposal of its waste products ♦ The closing of chromium plating facilities Thermal spraying offers an opportunity to select a coating from a wide variety of processes and materials that will meet the specific requirements of each application. While this may cause some difficulty in selecting the optimum coating, the selected thermal spray coating often has superior propolies and/or lower cost compared to chromium plating. The highest quality coatings are sprayed by the HVOF process, many with carbide containing materials. Dense plasma grayed ceramic materials offer good wear resistance plus elevated temperature capability. The most economical replacements for chromium plate are applied by the two-wire arc spray process. This paper examines the properties and costs of eight different dismal sprayed coatings and compares them with electroplated chromium.

Field Performance of Sprayed Zinc Cathodic Protection Anodes

1998 ◽  
Author(s):  
J.S. Tinnea
Keyword(s):  
Reinforced Concrete ◽  
Thermal Spray ◽  
Spray Coating ◽  
Field Performance ◽  
Highway Bridges ◽  
Thermal Spray Coating ◽  
Concrete Bridges ◽  
Paper Mills ◽  
Surface Areas ◽  
Parking Garages

Abstract The corrosion of steel in the global reinforced concrete infrastructure is at epidemic proportions. The resulting damage is seen in highway bridges, apartments, paper mills and aquariums. In North America reinforcement corrosion in concrete bridges and parking garages generates cost estimates that range from $325 million to $1 billion per year.1 One anode material gaining acceptance is zinc thermal spray (TS) coating. Since the first installation in 1983, zinc TSCP systems have been applied to reinforced concrete bridges, docks, parking garages and even aquariums. This paper discusses the performance of field applications of zinc thermal spray coating CP systems. The systems discussed have sprayed surface areas ranging from 280m2 to 24,000m2 The installations are on major concrete structures. The performance of both galvanic and impressed current systems are discussed.

scholarly journals Current Status of Prevention of Hot Corrosion of Boiler Steels with Thermal Spray Coating

2018 ◽  
Vol 7 (2) ◽  
pp. 121-126
Author(s):  
Gurdeep Singh ◽  
Indermeet Singh ◽  
Khushdeep Goyal
Keyword(s):  
Thermal Spray ◽  
Hot Corrosion ◽  
Operating Temperature ◽  
Thermal Power ◽  
Operating Cost ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
Current Status ◽  
Steel Alloys ◽  
Boiler Steels

In the thermal power plant, various conventional steels are used to manufacture boiler components. Due to high operating temperature of these boilers, these conventional steels are unable to resist hot corrosion. In recent years researchers have used various techniques to resist hot corrosion out of these techniques, thermal spray coating process have gained lot of interest due to the ease of coating, low operating cost, and various other advantages. With these coating processes a thin layer of coating material is developed over steel alloys surface which creates hindrance to penetration of corroding element and hereby reduce corrosion. This paper is an attempt to present a comprehension the study related to hot corrosion of thermal spray coating on boiler steels at high temperatures.

Thermal Spraying of Aluminium Cylinder Bores by the Ford PTWA Spray Process

2006 ◽  
Author(s):  
C. Verpoort ◽  
W. Blume ◽  
R. Ehrenpreis ◽  
M. Silk ◽  
W. Polich ◽  
...  
Keyword(s):  
Thermal Spray ◽  
Thermal Spraying ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
Thermal Spray Process ◽  
Spray Process ◽  
Nano Material ◽  
Future Demands ◽  
Engine Blocks ◽  
Cylinder Bore

One of the main drivers in the automotive industry is the reduction in fuel consumptions and emissions. In order to achieve these goals, the weight of the engine block as well as the friction in the cylinder bore has to be optimized. This paper describes the FORD PTWA (Plasma Transferred Wire Arc) thermal spray process that protects the aluminum cylinder bore surface against wear by a thermal spray coating. The PTWA technology was originally developed for the application in gasoline V8 engines and it will be shown in this paper how this process can be modified to apply nano-material to produce high-wear resistant, low-friction coatings for highly loaded engine blocks for future demands. A large German BMBF “Nanomobile” Research Program was started in 2005 with 13 partners (DaimlerChrysler, Opel, Porsche, Ford, Gehring, Federal Mogul, GTV Thermal Spray Systems, DURUM, RWTH University and other institutes) in order to develop next generation nano-material coatings for cylinder bores.

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