Formation and mechanical properties of Zr-based bulk metallic glass composites with high oxygen levels

被引：7
|
作者：
Liu ZengQian [1 ]
Yang YaoWei [1 ]
Li Ran [1 ]
Huang Lu [1 ]
Zhang Tao [1 ]
机构：
[1] Beihang Univ, Key Lab Aerosp Mat & Performance, Minist Educ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
来源：
CHINESE SCIENCE BULLETIN | 2012年 / 57卷 / 30期
基金：
中国国家自然科学基金;
关键词：
bulk metallic glass; composites; oxide dispersion strengthened alloys; mechanical properties; in situ reaction; DUCTILITY; STRENGTH; IMPURITY;
D O I：
10.1007/s11434-012-5293-x
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Zr-based bulk metallic glass (BMG) composites with in situ formed Y2O3 particle reinforcements were synthesized by proper additions of Y to ultrahigh-oxygen-containing glass-forming alloy precursors. Microstructures, thermal stabilities, and mechanical properties of the composites were investigated. Glass formation was greatly enhanced by Y additions in the alloys and the resultant particles were homogenously distributed in the glassy matrix, allowing for the fabrication of oxide dispersion strengthened BMG composites. The compressive strength and hardness increased by 10% and 20%, respectively, with the introduction of Y2O3 particles. These results are significant for the design and production of Zr-based BMGs and BMG composites with improved properties using commercial high-oxygen content raw materials under industrial conditions.
引用
收藏
页码：3931 / 3936
页数：6
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