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| - | + | All metals and certain polymers and ceramics are susceptible to corrosion, that is typically produced by the existence of moisture in the air or direct experience of water. In metals this technique is oxidation: the alteration of electrostatic charge whereby oxides or salts are made, causing damage to the metal's structure. Rusting, the creation of red oxide within an iron structure, is a common example of this. The phrase 'degradation' is applied to the corrosion of non-metals, even so the process is similar: the corroding material surrenders electrons in a chemical reaction and loses its structural integrity. Corrosion testing can be applied for the following types of damage. | |
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| - | + | Galvanic corrosion takes place when two metals enter into contact within the electrolytic medium or one metal is encountered with two different electrolytes. Microbiologically Influenced Corrosion is a result of micro-organisms attacking a metallic or non-metallic material either without or with the existence of oxygen; by way of example Accelerated Low Water Corrosion damages steel piles around the low-water mark, leaving an orange sludge for a deposit. Aerospace materials, engines or power-generation materials are typical instances of substances prone to High Temperature Corrosion. Metal Dusting happens in high-carbon-dioxide contexts, creating a tell-tale film of graphite on metal and reducing that metal to powder. | |
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| - | + | Corrosion testing necessitates the promotion of degradation in test samples to find out the extent and rate of any damage by corrosion in the environment. Accelerated Corrosion Testing is a method created to calibrate the long-term effects on the system of alternating wet and dry cycles, creating the production of partially dry corrosion agents that worsen degradation within the system. Typical is the ISO 11474 test, which employs an outdoor intermittent salt water spray. | |
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| - | + | Weld testing for corrosion damage or any other structural compromise can be carried out via Dye Penetrant Inspection. Penetrant is applied to a test surface and left for 5-30 minutes. Developer, either dry powder or Non-Aqueous Wet Developer (e.g. acetone), draws penetrant from defects in a visible ‘bleed-out’ process. Different weld testing methods include Magnetic Particle Testing, X-rays, 3D X-rays and microscopy: all listed as Non-Destructive Inspection procedures. All metals and certain polymers and ceramics are inclined to corrosion, that is typically produced by the presence of moisture in the air or direct exposure to water. In metals this procedure is oxidation: the alteration of electrostatic charge whereby oxides or salts are produced, causing damage to the metal's structure. Rusting, the production of red oxide within an iron structure, is a common illustration of this. The word 'degradation' is applied to the corrosion of non-metals, even so the process is identical: the corroding material surrenders electrons in a chemical reaction and drops its structural integrity. Corrosion testing does apply for the following kinds of damage. | |
| - | + | ||
| - | + | Galvanic corrosion occurs when two metals enter into contact in a electrolytic medium or one metal is subjected to two different electrolytes. Microbiologically Influenced Corrosion is attributable to micro-organisms attacking a metallic or non-metallic material either with or without the existence of oxygen; by way of example Accelerated Low Water Corrosion damages steel piles round the low-water mark, leaving an orange sludge as a deposit. Aerospace materials, engines or power-generation materials are normal cases of substances susceptible to High Temperature Corrosion. Metal Dusting happens in high-carbon-dioxide contexts, creating a tell-tale film of graphite on metal and reducing that metal to powder. | |
| - | + | ||
| - | + | Corrosion testing involves the promotion of deterioration in test samples to find out the extent and rate of any damage by corrosion within the environment. Accelerated Corrosion Testing is a technique designed to calibrate the long-term effects on a system of alternating wet and dry cycles, creating the output of partially dry corrosion agents that worsen degradation within the system. Typical will be the ISO 11474 test, which employs an outdoor intermittent salt water spray. | |
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| + | Weld testing for corrosion damage or any other structural compromise can be done via Dye Penetrant Inspection. Penetrant is used to a test surface and left for 5-30 minutes. Developer, such as dry powder or Non-Aqueous Wet Developer (e.g. acetone), draws penetrant from defects in a visible ‘bleed-out’ process. Various other weld testing methods include Magnetic Particle Testing, X-rays, 3D X-rays and microscopy: all considered as Non-Destructive Inspection techniques. | ||
Revision as of 03:54, 2 January 2013
All metals and certain polymers and ceramics are susceptible to corrosion, that is typically produced by the existence of moisture in the air or direct experience of water. In metals this technique is oxidation: the alteration of electrostatic charge whereby oxides or salts are made, causing damage to the metal's structure. Rusting, the creation of red oxide within an iron structure, is a common example of this. The phrase 'degradation' is applied to the corrosion of non-metals, even so the process is similar: the corroding material surrenders electrons in a chemical reaction and loses its structural integrity. Corrosion testing can be applied for the following types of damage.
Galvanic corrosion takes place when two metals enter into contact within the electrolytic medium or one metal is encountered with two different electrolytes. Microbiologically Influenced Corrosion is a result of micro-organisms attacking a metallic or non-metallic material either without or with the existence of oxygen; by way of example Accelerated Low Water Corrosion damages steel piles around the low-water mark, leaving an orange sludge for a deposit. Aerospace materials, engines or power-generation materials are typical instances of substances prone to High Temperature Corrosion. Metal Dusting happens in high-carbon-dioxide contexts, creating a tell-tale film of graphite on metal and reducing that metal to powder.
Corrosion testing necessitates the promotion of degradation in test samples to find out the extent and rate of any damage by corrosion in the environment. Accelerated Corrosion Testing is a method created to calibrate the long-term effects on the system of alternating wet and dry cycles, creating the production of partially dry corrosion agents that worsen degradation within the system. Typical is the ISO 11474 test, which employs an outdoor intermittent salt water spray.
Weld testing for corrosion damage or any other structural compromise can be carried out via Dye Penetrant Inspection. Penetrant is applied to a test surface and left for 5-30 minutes. Developer, either dry powder or Non-Aqueous Wet Developer (e.g. acetone), draws penetrant from defects in a visible ‘bleed-out’ process. Different weld testing methods include Magnetic Particle Testing, X-rays, 3D X-rays and microscopy: all listed as Non-Destructive Inspection procedures. All metals and certain polymers and ceramics are inclined to corrosion, that is typically produced by the presence of moisture in the air or direct exposure to water. In metals this procedure is oxidation: the alteration of electrostatic charge whereby oxides or salts are produced, causing damage to the metal's structure. Rusting, the production of red oxide within an iron structure, is a common illustration of this. The word 'degradation' is applied to the corrosion of non-metals, even so the process is identical: the corroding material surrenders electrons in a chemical reaction and drops its structural integrity. Corrosion testing does apply for the following kinds of damage.
Galvanic corrosion occurs when two metals enter into contact in a electrolytic medium or one metal is subjected to two different electrolytes. Microbiologically Influenced Corrosion is attributable to micro-organisms attacking a metallic or non-metallic material either with or without the existence of oxygen; by way of example Accelerated Low Water Corrosion damages steel piles round the low-water mark, leaving an orange sludge as a deposit. Aerospace materials, engines or power-generation materials are normal cases of substances susceptible to High Temperature Corrosion. Metal Dusting happens in high-carbon-dioxide contexts, creating a tell-tale film of graphite on metal and reducing that metal to powder.
Corrosion testing involves the promotion of deterioration in test samples to find out the extent and rate of any damage by corrosion within the environment. Accelerated Corrosion Testing is a technique designed to calibrate the long-term effects on a system of alternating wet and dry cycles, creating the output of partially dry corrosion agents that worsen degradation within the system. Typical will be the ISO 11474 test, which employs an outdoor intermittent salt water spray.
Weld testing for corrosion damage or any other structural compromise can be done via Dye Penetrant Inspection. Penetrant is used to a test surface and left for 5-30 minutes. Developer, such as dry powder or Non-Aqueous Wet Developer (e.g. acetone), draws penetrant from defects in a visible ‘bleed-out’ process. Various other weld testing methods include Magnetic Particle Testing, X-rays, 3D X-rays and microscopy: all considered as Non-Destructive Inspection techniques.
