Grains in Metals.

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Presentation transcript:

Grains in Metals

Grains in Metals

Grains and Grain-Boundaries

Regular arrangement of atoms in solids

3-dimensional lattice

BCC (iron) Crystal lattice

BCC and FCC Lattices

Ductility in Metals

Deformation by SLIP

Example Pack of Cards

SLIP along crystal planes

Soft 2nd Phase

Deformation by SLIP

Deformation by SLIP

Regular arrangement of atoms in solids

Solid Solution Lattice

Strain around solute atoms

Strain around small 2nd phase precipitates

In real crystals, spherical atoms are in contact with each other

Preferred Grain Flow