AMPP Corrosion Technologist study guide
AMPP Corrosion Technologist · Work through your exam, one topic at a time.
The AMPP Corrosion Technologist certification is a written, theory-based credential for experienced corrosion practitioners who need to demonstrate command of corrosion theory, prevention, and advanced corrosion-control techniques. AMPP positions it for metallurgists, corrosion and equipment engineers, design engineers, and supervisors or foremen - people who apply corrosion theory to real problems and execute responsible work under the direction of senior personnel. The AMPP Corrosion Technologist study guide has 5 sections and about 1,529 words.
01Cathodic Protection
Cathodic protection (CP) makes a buried or immersed structure the cathode of a deliberate electrochemical cell, so that its anodic dissolution is suppressed. Two methods dominate: galvanic (sacrificial anodes of zinc, aluminum, or magnesium that are more active than the protected steel) and impressed current (an external DC source driving inert anodes such as mixed metal oxide or high-silicon cast iron).
346 words, about 2 min02Protective Coatings
Protective coatings are the primary barrier against corrosion for most structures, and CP is often a backup. A coating system typically includes surface preparation, a primer, and one or more topcoats.
301 words, about 2 min03Material Selection
Material selection balances corrosion resistance, mechanical properties, cost, and availability. Candidates must understand the galvanic series, passivity, and how environment (pH, chloride, temperature, oxygen, flow) drives degradation modes: uniform corrosion, pitting, crevice, galvanic, stress corrosion cracking (SCC), and erosion-corrosion.
292 words, about 1 min04Internal Corrosion
Internal corrosion affects pipelines, tanks, vessels, and process equipment. The main mechanisms are CO2 (sweet) corrosion, H2S (sour) corrosion, oxygen corrosion, microbiologically influenced corrosion (MIC), and erosion-corrosion from flow.
289 words, about 1 min05Chemical Treatment
Chemical treatment controls corrosion, scaling, and biological activity in water and process systems. Candidates should know corrosion inhibitors (anodic, cathodic, and mixed), scale inhibitors, biocides, oxygen scavengers, and pH adjusters, and how each works and where it applies.
301 words, about 2 min