Microstructure-Properties: I Fracture Toughness - Materials Science ...
Microstructure-Properties: I Fracture Toughness - Materials Science ...
Microstructure-Properties: I Fracture Toughness - Materials Science ...
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14<br />
Objective<br />
Overview<br />
Crack<br />
Minimztn.<br />
Energy<br />
Absrptin.<br />
Mechanical Fibering<br />
• Any second phase particles present from solidification tend to<br />
be elongated and dispersed in sheets parallel to the rolling<br />
plane; called “stringers”.<br />
• <strong>Toughness</strong> in the S-L or S-T orientations is typically much<br />
lower than for the L-T or L-S orientations because the crack<br />
plane is parallel to the planes on which the particles lie close<br />
to one another.<br />
[Hertzberg]<br />
Lowest<br />
toughness
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