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  • atticus finch

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    Mar 7, 2013
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    Exactly what do you mean by "crystallization"?
    it's a technical term used to describe where stresses of whatever source actually alter the grain structure of the metal, it forms a crystalline pattern when viewed under magnification.
    Such a crystallization due to stress alters the grain structure of the metal and hence it's physical strength properties at the crystallization location.

    take the push tab on the top of a soda can, it's somewhat shiny as-is.
    Work the tab till it breaks off, you'll notice it's no longer shiny at the point of breakage but a duller appearance or color, that'd be a simple example of metal crystallization.
     

    oldag

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    Feb 19, 2015
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    it's a technical term used to describe where stresses of whatever source actually alter the grain structure of the metal, it forms a crystalline pattern when viewed under magnification.
    Such a crystallization due to stress alters the grain structure of the metal and hence it's physical strength properties at the crystallization location.

    take the push tab on the top of a soda can, it's somewhat shiny as-is.
    Work the tab till it breaks off, you'll notice it's no longer shiny at the point of breakage but a duller appearance or color, that'd be a simple example of metal crystallization.

    Used to work in metallurgy, corrosion and did failure analysis. That is just not a term we ever used.

    Seems you are referring to what we called fatigue.

    But I am old...
     

    atticus finch

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    Mar 7, 2013
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    Used to work in metallurgy, corrosion and did failure analysis. That is just not a term we ever used.

    Seems you are referring to what we called fatigue.

    But I am old...

    Likely fatigue would be the same thing albeit referenced by different terms.
    Crystallization being a term based on what I previously mentioned, what actually happens within the metal grain itself.
    I've seen it under magnification, it actually looks very similar to ice crystals.
     
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