The dendritical spaped precipitates in GH 302 alloy were identified as C14 type Laves phase by means of CBED, SED and X-ray mitro-analysis.

• 用会聚束电子衍射、选区电子衍射和X射线微区分析,将GH302合金中的枝晶状析出相确认为C14型Laves相。