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Materials/Processes

Selection of Materials
Specific Metals
  Metal Ores
  Iron and Steel
  Decarburization
  Aluminum/Aluminum Alloys
  Nickel and Nickel Alloys
  Titanium and Titanium Alloys


General Manufacturing Processes

Metallic Components
Ceramic and Glass Components
Polymers/Plastic Components
Composites

Manufacturing Defects
Metals
Polymers
Composites

Service Induced Damage
Metals
Polymers
Composites
Material Specifications

Component Design, Performance and NDE
Strength
Durability
Fracture Mechanics
Nondestructive Evaluation

Property Modification

Many structural metals undergo some special treatment to modify their properties so that they will perform better for their intended use. This treatment can include mechanical working, such as rolling or forging, alloying and/or thermal treatments. Consider aluminum as an example. Commercially pure aluminum (1100) has a tensile strength of around 13,000 psi, which limits its usefulness in structural applications. However, by cold-working aluminum, its strength can be approximately doubled. Also, strength increases are obtained by adding alloying metals such as manganese, silicon, copper, magnesium and zinc. Further, many aluminum alloys are strengthened by heat treatment. Some heat-treatable aluminum alloys obtain tensile strengths that can exceed 100,000 psi.