Introduction to Metallurgy

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Chapter 1

• Introduction to Metallurgy

Materials Sciences Metal Identification
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• Materials sciences, which consist of the study of
  engineering materials, are divided into six
  branches.

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• Extractive metallurgy is the study of the
  extraction and purification of metals from their
  ores.

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• Mechanical metallurgy is the study of the
  techniques and mechanical forces that shape
  finish forms of metals.

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• Physical metallurgy is the study of the effect of
  crystal structures and microstructures on the
  properties of metals.

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• Metals yield in the presence of stress.

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• Alloys are made of two or more chemical elements,
  one of which is a metal.

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• Coding systems identify alloys, their alloying
  elements, and percentages of those alloying
  elements.

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• Property identification is an important part of
  failure analysis, alloy development, quality
  control programs, and design and purchasing
  specifications.

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• Metals may be supplied in cast or wrought process
  condition.