| Autor: |
Bi, Zhong-nan, Dong, Jian-xin, Zhang, Mai-cang, Zheng, Lei, Xie, Xi-shan |
| Zdroj: |
International Journal of Minerals, Metallurgy & Materials; Jun2010, Vol. 17 Issue 3, p312-317, 6p |
| Abstrakt: |
To study the precipitation mechanism of α-Cr phase in Inconel 718 alloy, the samples after long-time aging at 650 and 677°C were examined by microstructural observations and chemical phase analysis methods. Combining the thermodynamics and kinetics calculation results, α-Cr always precipitates in the vicinity of δ phase, because δ phase rejects Cr into the γ-matrix when growing. The selected area diffraction patterns confirm that the crystallographic relationships of α-Cr with δ phase are (010)δ//( $$ \bar 1 $$10)α-Cr and 100δ//111α-Cr. A graphic model is also presented to show the crystallographic relation between α-Cr and δ phases. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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