Research Article
TEM Study of High-Temperature Precipitation of Delta Phase in Inconel 718 Alloy
Table 1
Specification (wt.%) of alloy 718 [
8] and composition of the alloys used in the present study [
7,
9].
| | Ni | Fe | Cr | Nb | Ti | Al | Mo | C | Co |
| | Specification | 50.0–55.0 | Balance | 17.0–21.0 | 4.75–5.50 | 0.75–1.15 | 0.20–0.80 | 2.80–3.30 | <0.08 | — | | Alloy 1 [9] | 54.4 | 17.4 | 17.9 | 5.4 | 1.1 | 0.5 | 3.0 | 0.02 | 0.2 | | Alloy 2 [7] | 53.0 | 17.1 | 17.5 | 5.3 | 1.1 | 0.5 | 3.1 | 0.12 | 0.2 |
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