Planar-cellular-dendritic transformation in the fusion zone of a GH909 superalloy weldment

Solidification behaviors and resultant crystalline growth of primary gamma (γ) and γ/Laves phases were systematically investigated in a GH909 superalloy laser weldment. Results showed that horizontal microstructural evolution varied along the thickness direction under Marangoni force and eruption of...

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Bibliographic Details
Main Authors: Zhengwu Zhu, Xiuquan Ma, Ping Jiang, Gaoyang Mi, Chunming Wang
Format: Article
Language:English
Published: Elsevier 2021-01-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785420321098