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  2. Fracture (mineralogy) - Wikipedia

    en.wikipedia.org/wiki/Fracture_(mineralogy)

    Hackly fracture (also known as jagged fracture) is jagged, sharp and not even. It occurs when metals are torn, and so is often encountered in native metals such as copper and silver . Splintery fracture

  3. Intergranular fracture - Wikipedia

    en.wikipedia.org/wiki/Intergranular_fracture

    Intergranular fatigue fracture involves cases in which the integranular fracture occurs as a result of cyclic loading, or fatigue. This specific type of intergranular fracture is often associated with improper materials processing or harsh environmental conditions where the grains are severely weakened. [ 6 ]

  4. Fractography - Wikipedia

    en.wikipedia.org/wiki/Fractography

    Fractography is the study of the fracture surfaces of materials. Fractographic methods are routinely used to determine the cause of failure in engineering structures, especially in product failure and the practice of forensic engineering or failure analysis.

  5. Fracture - Wikipedia

    en.wikipedia.org/wiki/Fracture

    Fracture is the appearance of a crack or complete separation of an object or material into two or more pieces under the action of stress.The fracture of a solid usually occurs due to the development of certain displacement discontinuity surfaces within the solid.

  6. Charpy impact test - Wikipedia

    en.wikipedia.org/wiki/Charpy_impact_test

    If the material breaks on a flat plane, the fracture was brittle, and if the material breaks with jagged edges or shear lips, then the fracture was ductile. Usually, a material does not break in just one way or the other and thus comparing the jagged to flat surface areas of the fracture will give an estimate of the percentage of ductile and ...

  7. Corrosion fatigue - Wikipedia

    en.wikipedia.org/wiki/Corrosion_fatigue

    Specimen fracture occurs when the stress-intensity-factor range is equal to the applicable threshold-stress-intensity factor for stress-corrosion cracking. When attempting to analyze the effects of corrosion fatigue on crack growth in a particular environment, both corrosion type and fatigue load levels affect crack growth in varying degrees.

  8. Striation (fatigue) - Wikipedia

    en.wikipedia.org/wiki/Striation_(fatigue)

    The study of the fracture surface is known as fractography. Images of the crack can be used to reveal features and understand the mechanisms of crack growth. While striations are fairly straight, they tend to curve at the ends allowing the direction of crack growth to be determined from an image.

  9. Conchoidal fracture - Wikipedia

    en.wikipedia.org/wiki/Conchoidal_fracture

    A conchoidal fracture is a break or fracture of a brittle material that does not follow any natural planes of separation. Mindat.org defines conchoidal fracture as follows: "a fracture with smooth, curved surfaces, typically slightly concave, showing concentric undulations resembling the lines of growth of a shell". [ 1 ]

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