Microstructural features of Sc- and Zr-modified Al-Mg alloys processed by selective laser melting

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• 作者：A.B. Spierings^a ; ^{spierings@inspire.ethz.ch} ; K. Dawson^b ; T. Heeling^c ; P.J. Uggowitzer^d ; R. Schä ; ublin^d ; F. Palm^e ; K. Wegener^c
• 关键词：Additive manufacturing ; Selective laser melting ; Scalmalloy ; Solidification ; EBSD ; Electron microscopy
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：115
• 期：Complete
• 页码：52-63
• 全文大小：3390 K
• 卷排序：115

文摘

Comprehensive description of the microstructure. Additive manufactured Scandium and Zirconium modified AlMg alloys exhibit a bi-modal grain size distribution. The formation fine-grained microstructure is closely related to the presence of intermetallic particles in the melt pool. Precipitate survival is affected by local temperature distribution in the melt-pool.