Course overview

This course is designed to provide participants with a knowledge in corrosion control, mitigations and cathodic protection fundamentals. It provides theoretical knowledge and fundamentals of corrosion, types of corrosion, methods of corrosion control and mitigation by sacrificial and impressed current cathodic protection systems for buried structure, with emphasis in Storage Tanks, and Terminals.

Course Objectives:

Upon the successful completion of this course, each participant will be able to:

  • To know the basis of corrosion mechanisms, recognize the nature of corrosion, forms of corrosion and the various effects of soil conditions
  • To acknowledge the different types of corrosion in soils, nature of soils, and know what is a corrosive soil
  • To identify the associated aspects of corrosion control and mitigation such as the materials selection, coatings and cathodic protection including its design, types, selection and fabrication
  • To identify the types of cathodic protection by sacrificial anodes and impressed current, protection criteria, advantages, disadvantages, and applications
  • To identify and manage corrosion problems in Storage Tanks & Terminals, including the use of cathodic protection, vapor phase corrosion inhibitors and corrosion modeling and monitoring

Training Methodology:

This interactive training course includes a 100% online training methodology of the total tuition hours, including online lectures and presentations, case histories and general discussions.

Who should attend?

This course is intended for those responsible for corrosion control programs, and/or recording this data, including Storage Tanks and Terminals engineers, operations engineers, corrosion engineers, materials engineers, mechanical engineers, inspection engineers, chemical engineers, marine maintenance people, offshore structure design and operation people, CP field personnel, supervisors and other technical staff.

Course Content

  • Corrosion Basics
  • Corrosion and nature of corrosion
  • Chemical corrosion
  • Electrochemical Corrosion
  • Basic cell of corrosion
  • Battery or dry cell
  • Galvanic Cell iron-copper
  • Electromotive force
  • Reference electrode
  • Practical Galvanic series

  • Effects of Soil Conditions
  • Effects of System Operation
  • Microbiological Corrosion
  • Electrolytic Corrosion
  • Corrosion by different surfaces
  • Corrosion by different metals
  • Corrosion by different soils
  • Corrosion by humidity and aeration
  • Corrosion by non-homogeneity in the surface
  • Relative size of anodic and cathodic areas
  • Effect of small anode-large cathode
  • Effect of large anode-small cathode
  • Effect of the temperature

  • Materials Selection
  • Influence of Galvanic Series Chemical resistance
  • Use of non metals
  • Susceptibility to stress corrosion cracking
  • Use of coatings
  • Organic Coatings
  • Other coatings
  • Failure mechanisms of Coatings
  • Overprotection
  • Chemical processing of the environment
  • pH Adjustment
  • Use of inhibitors
  • Removal of oxidant agents
  • Use of biocides
  • Design and assembly of structures
  • Facility of corrosion control and monitoring
  • Fabrication Methods

  • How does it works Cathodic Protection
  • Equivalent Circuits
  • Types of Cathodic Protection Systems by sacrificial anodes and impressed current
  • Protection criteria, advantages, disadvantages, and applications

  • Relevant Case History of Storage Tank Corrosion: Shell, bottom plates and guide poles
  • Aboveground Storage Tanks codes, standards and regulations
  • Ineffective Cathodic Protection diagnostic, analysis and recommendations
  • Basics of Storage Tanks CP Calculations

  • Electric insulation and electric continuity
  • Isolating joints
  • Control of stray currents
  • Earthing systems
  • Impact of piping
  • Impact of civil structures
  • Types of storage tanks foundations
  • Synergy of cathodic protection, coatings and vapor phase corrosion inhibitors
  • Corrosion modeling and monitoring of Storage Tanks & Terminals