Regular eutectic and anomalous eutectic growth behavior in laser remelting of Ni-30wt%Sn alloys

Xin Lin, Yong Qing Cao, Zhi Tai Wang, Jun Cao, Li Lin Wang, Wei Dong Huang

科研成果: 期刊稿件文章同行评审

59 引用 (Scopus)

摘要

Ni-30wt%Sn alloy powder beds were remelted using a laser beam to examine regular eutectic and anomalous eutectic growth behavior. The remelted microstructure mainly consisted of primary α-Ni dendrites and refined regular lamellar eutectic in the interdendrite space. At the top of the molten pool, the competition between primary α-Ni dendrites and the regular lamellar eutectic can be explained by the maximum interface temperature criterion. Anomalous eutectic was observed at the bottom of the molten pool. The remelting of primary α-Ni dendritic arms formed in the first laser remelting scan had an important effect on the formation of the anomalous eutectic in the second laser remelting scan. This effect led to the formation of globular α-Ni particles with similar Euler's angles in the anomalous eutectic.

源语言英语
页(从-至)210-220
页数11
期刊Acta Materialia
126
DOI
出版状态已出版 - 1 3月 2017

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