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| A FORMULA FOR γ′-PHASE AMOUNTING IN PRECIPITATION HARDENING NICKEL-BASE SUPERALLOYS |
| Yang Hongcai (Northeast Institute of Technology; Shenyang) (Manuscript received 13 April; 1981) |
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Cite this article:
Yang Hongcai (Northeast Institute of Technology; Shenyang) (Manuscript received 13 April; 1981). A FORMULA FOR γ′-PHASE AMOUNTING IN PRECIPITATION HARDENING NICKEL-BASE SUPERALLOYS. Acta Metall Sin, 1982, 18(4): 510-514.
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Abstract A formula for calculation of the possible wt-% content of γ＇-phase, G(γ＇), formed in the precipitation hardening nickel-base superalloys was derived as: G(γ＇)=6.662C_(al)+4.256C(Ti)+2.896C_(Nb)+2.153C_V+1.973C_(Ta) +0.905C_W+0.393C_(Mo)+0.121C_(Cr)+0.001C_(Co) where C with sub-symbol of an alloying element is its own wt-% contained in such superalloy. The calculation for 25 commercial nickel-base superalloys was made by this formula with satisfactory results.
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Received: 18 April 1982
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