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  2. Precipitation hardening - Wikipedia

    en.wikipedia.org/wiki/Precipitation_hardening

    Solution treatment and aging is sometimes abbreviated "STA" in specifications and certificates for metals. Two different heat treatments involving precipitates can alter the strength of a material: solution heat treating and precipitation heat treating. Solid solution strengthening involves formation of a single-phase solid solution via ...

  3. Hardening (metallurgy) - Wikipedia

    en.wikipedia.org/wiki/Hardening_(metallurgy)

    A second heat treatment at a suitable temperature is then required to age the material. The elevated temperature allows the dissolved elements to diffuse much faster, and form the desired precipitated particles. The quenching is required since the material otherwise would start the precipitation already during the slow cooling.

  4. Heat treating - Wikipedia

    en.wikipedia.org/wiki/Heat_treating

    Heat treatment involves the use of heating or chilling, normally to extreme temperatures, to achieve the desired result such as hardening or softening of a material. Heat treatment techniques include annealing, case hardening, precipitation strengthening, tempering, carburizing, normalizing and quenching.

  5. Strengthening mechanisms of materials - Wikipedia

    en.wikipedia.org/wiki/Strengthening_mechanisms...

    If the precipitate atoms are small, the dislocations would cut through them. As a result, new surfaces (b in Figure 2) of the particle would get exposed to the matrix and the particle-matrix interfacial energy would increase. For larger precipitate particles, looping or bowing of the dislocations would occur and result in dislocations getting ...

  6. 6061 aluminium alloy - Wikipedia

    en.wikipedia.org/wiki/6061_aluminium_alloy

    6061-T6 aluminium standard heat treating process. T6 temper 6061 has been treated to provide the maximum precipitation hardening (and therefore maximum yield strength) for a 6061 aluminium alloy. It has an ultimate tensile strength of at least 290 MPa (42 ksi) and yield strength of at least 240 MPa (35 ksi).

  7. 7 common banking mistakes costing you money — and how to ...

    www.aol.com/finance/banking-mistakes-to-avoid...

    Dig deeper: Online banks vs. traditional banks: How they compare on rates, perks and the safety of your money. Banking mistake 6: Locking too much money up in a CD.

  8. Hydrometallurgy - Wikipedia

    en.wikipedia.org/wiki/Hydrometallurgy

    Precipitation in hydrometallurgy involves the chemical precipitation from aqueous solutions, either of metals and their compounds or of the contaminants. Precipitation will proceed when, through reagent addition, evaporation , pH change or temperature manipulation, the amount of a species present in the solution exceeds the maximum determined ...

  9. 10 Tips to Increase REM Sleep Naturally - AOL

    www.aol.com/10-tips-increase-rem-sleep-115700126...

    NREM Stages. Three stages of sleep make up the NREM phase, and they each unfold before REM kicks in. Here’s a rough breakdown of what happens during each stage of NREM sleep:. Stage 1: light ...

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