Metal Science and Heat Treatment

, Volume 13, Issue 5, pp 362–365 | Cite as

Temperature-time ranges of aging of alloy AK6

  • L. N. Leshchiner
Nonferrous Metals and Alloys
  • 13 Downloads

Conclusions

  1. 1.

    Zone aging occurs when alloy AK6 is heated for several thousand hours at 20–70°C. Zone aging, mixed aging, phase aging, and coalescence occur at 125–195°C. With increasing aging temperature from 125 to 195° the length of each stage and the total aging time decrease.

     
  2. 2.

    With the transition from zone to phase aging the ultimate strength rises from 44 to 49 kg/mm2, the yield strength from 29 to 43 kg/mm2, σ0.2/σb from 0.60 to 0.85, and there is a decrease of the stress corrosion resistance and elongation. In the coalescence stage the corrosion resistance increases and the strength characteristics decrease.

     

We propose new aging conditions for alloy AK6: artificial zone aging at 90°C for 3–5 h and artificial phase aging at 175°C for ∼6 h.

Keywords

Yield Strength Corrosion Resistance Aging Time Ultimate Strength Stress Corrosion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Consultants Bureau, a division of Plenum Publishing Corporation 1972

Authors and Affiliations

  • L. N. Leshchiner

There are no affiliations available

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