Chapter 8.2

Chapter 8.2 - Ductile Fracture (Cup-and-cone fracture in...

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6 MSE 2090: Introduction to Materials Science Chapter 8, Failure Ductile Fracture (Cup-and-cone fracture in Al) Scanning Electron Microscopy: Fractographic studies at high resolution. Spherical “dimples” correspond to microvoids that initiate crack formation. tensile failure shear failure
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7 MSE 2090: Introduction to Materials Science Chapter 8, Failure ¾ No appreciable plastic deformation ¾ Crack propagation is very fast ¾ Crack propagates nearly perpendicular to the direction of the applied stress ¾ Crack often propagates by cleavage - breaking of atomic bonds along specific crystallographic planes ( cleavage planes ). Brittle Fracture (Limited Dislocation Mobility) Brittle fracture in a mild steel
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8 MSE 2090: Introduction to Materials Science Chapter 8, Failure A. Transgranular fracture : Fracture cracks pass through grains. Fracture surface have faceted texture because of different orientation of cleavage planes in grains. B. Intergranular fracture
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This note was uploaded on 02/14/2012 for the course MSE 2090 taught by Professor Leoindzhiglei during the Fall '10 term at UVA.

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Chapter 8.2 - Ductile Fracture (Cup-and-cone fracture in...

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