Effect of minor alloying additions on glass formation in bulk metallic glasses
Effect of minor alloying additions on glass formation in bulk metallic glasses
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DOI：
10.1016/j.intermet.2004.07.034
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发表时间：
2005-03-01
期刊：
影响因子：
4.4
通讯作者：
Lu, ZP
中科院分区：
文献类型：
--
作者：
Liu, CT;Lu, ZP
本文综述了近年来有关微量合金化对大块非晶玻璃形成的影响的研究工作。近年来，少量合金化或微合金化技术对许多大块金属玻璃的非晶形成和热稳定性有很大的影响。这项技术基本上是在现有的块体金属玻璃中添加少量的合金化添加剂(通常小于2at%)，以进一步提高其玻璃形成能力。实验结果表明，添加原子半径为-lt；0.12 nm的小原子(如B和Si)或半径为-gt；0.16 nm的大原子(如Y和Sc)对提高非晶形成能力最为有效。从物理冶金原理出发，讨论了这些元素的有益作用。(C)2004爱思唯尔有限公司。保留所有权利。
This paper provides a comprehensive review of recent work on the effect of minor alloying additions on glass formation in bulk metallic Glasses. Recently, minor alloying addition or microalloying technology has shown to have dramatic effects on the glass formation and thermal stability of many bulk metallic glasses. This technology basically involves adding small amounts of alloying additions (usually, less 2 at%) to existing bulk metallic glasses for the purpose of further improving their glass forming ability. Experimental evidences indicate that alloying additions of small atoms with atomic radius < 0.12 nm (such as B and Si) or large atoms with radius > 0.16 nm (such as Y and Sc) are most effective in enhancing glass forming ability. The beneficial effects of these elements are discussed in terms of physical metallurgy principles. (c) 2004 Elsevier Ltd. All rights reserved.