NDT Training Services by NDT Consulting Group Inc. Level III Instructors

Magnetic Particle Testing Course Outline

A typical MT course outline.  It will be modified to meet your needs.
  1. Principles of Magnets and Magnetic Fields
    1. Theory of magnetic fields
      1. Earth's magnetic field
      2. Magnetic fields around magnetized materials
    2. Theory of magnetism
      1. Magnetic poles
      2. Law of magnetism
      3. Materials influenced by magnetic fields
        1. Ferromagnetic
        2. Paramagnetic
        3. Diamagnetic (Magnetic characteristics of nonferrous materials
    3. Terminology associated with magnetic particle testing
  2. Characteristics of Magnetic Fields
    1. Bar magnet
    2. Ring magnet
  3. Effect of Discontinuities of Materials
    1. Surface cracks
    2. Scratches
    3. Subsurface defects
  4. Magnetization by Means of Electric Current
    1. Circular field
      1. Field around a straight conductor
      2. Right-hand rule
      3. Field in parts through which current flow
        1. Long, solid, cylindrical, regular parts
        2. Irregularly-shaped parts
        3. Tubular parts
        4. Parts containing machined holes, slots, etc.
      4. Methods of inducing current flow in part
        1. Contact plates
        2. Prods
      5. Discontinuities commonly discovered by circular fields
    2. Longitudinal field
      1. Field produced by current flow in a coil
      2. Field direction in a current-carrying coil
      3. Field strength in a current-carrying coil
      4. Discontinuities commonly discovered by longitudinal fields
      5. Advantages of longitudinal magnetizatio
      6. Disadvantages of longitudinal magnetization
  5. Selecting the Proper Method of Magnetization
    1. Alloy, shape, and condition of part
    2. Type of magnetizing current
    3. Direction of magnetic field
    4. Sequence of operations
    5. Value of flux density
  6. Inspection Materials
    1. Wet particles
    2. Dry particles
  7. Principles of Demagnetization
    1. Residual magnetism
    2. Reasons for requiring demagnetization
    3. Longitudinal and circular residual fields
    4. Basic principles of demagnetization
    5. Retentivity and coercive force
    6. Methods of demagnetization
  8. Magnetic Particle Testing Equipment
    1. Equipment-selection considerations
      1. Type of magnetizing current
      2. Location and nature of test
      3. Test materials used
      4. Purpose of test
      5. Area inspected
    2. Manual inspection equipment
    3. Medium and heavy-duty equipment
    4. Stationary equipment
    5. Mechanized inspection equipment
      1. Semiautomatic inspection equipment
      2. Single-purpose semiautomatic equipment
      3. Multipurpose semiautomatic equipment
      4. Fully automatic equipment
  9. Types of Discontinuities Detected by MT
    1. Inclusions
    2. Blowholes
    3. Porosity
    4. Flakes
    5. Cracks
    6. Pipes
    7. Laminations
    8. Laps
    9. Forging bursts
    10. Voids
    11. Indications of porosity
  10. Magnetic Particle Test Indications and Interpretation
    1. Nonrelevant indications
    2. Indications of nonmetallic inclusions
    3. Indications of surface seams
    4. Indications of cracks
    5. Indications of laminations
    6. Indications of laps
    7. Indications of bursts and flakes