Amorphous phase separation in an Fe-based bulk metallic glass

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• 作者：Wei Guo^a ; ^b ; ^{wguo2007@gmail.com} ; Pyuck-Pa Choi^c ; Jae-Bok Seol^d ; ^{jb_seol@postech.ac.kr}
• 关键词：Amorphous phase separation ; Yttrium ; Bulk metallic glass ; Atom probe tomography ; Glass forming ability
• 刊名：Materials Letters
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：190
• 期：Complete
• 页码：161-164
• 全文大小：1454 K
• 卷排序：190

文摘

4 mm thick FeCoCrMoCBY bulk metallic glass sheet was successfully synthesized. Atomic scale characterization of amorphous phase separation preceding crystallization. Yttrium-carbon enriched nanoclusters was observed in amorphous state. The nanohardness increased with increasing spatial density of yttrium-carbon clusters. Propose new clues how yttrium increased the glass forming ability of Fe-bulk metallic glass.