Engineering, 13.07.2019 05:20 kfull6027

If the hardness of unannealed 6061 al is hb 76, what is the approximate hardness after annealing at 570°c? how could you bring the hardness back to hb 76 after annealing?

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If the hardness of unannealed 6061 al is hb 76, what is the approximate hardness after annealing at...