Recent content by Schroding79

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    Understanding Precipitation Hardening: Coherent vs. Dispersion Mechanisms

    I'm not sure if precipitates coalesce with aging (like Ostwald ripening?) so can't directly answer your question. What I do know is that in Al alloys there are several meta-stable precipitate types that can be present. So it's not just a question of precipitate size and spacing. e.g. with...
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    Understanding Precipitation Hardening: Coherent vs. Dispersion Mechanisms

    going off the main question but I would say precipitation hardening is usually preferred in Al alloys because it leads to much greater hardness than that from dispersion/decoherent hardening. But yes decoherent particles are also pretty thermodynamically unstable and there is often a room...
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    Strength Coefficient and Strain-Hardening Exponent

    Calculations for n look fine.. I'd say the question is the problem ;) In fact I'm surprised the answers are even close to reasonable, I'd be worried any time you'd have to do a straight line fit between just two points. Most the time I have to calculate a slope from data I use 3 to 5 points to...
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