Formation and corrosion properties of Fe-based bulk metallic glasses

被引：0

作者：

Zhu, Chun-lei ^{[1
]}

Wang, Qing ^{[1
]}

Zhang, Jie ^{[1
]}

Wang, Ying-min ^{[1
]}

Dong, Chuang ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS | 2010年 / 17卷 / 03期

基金：

中国国家自然科学基金;

关键词：

bulk metallic glasses (BMG); cluster; atomic cluster; corrosion; glass-forming ability; FORMING ABILITY; ALLOYS; CRITERION;

D O I：

10.1007/s12613-010-0312-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bulk metallic glass (BMG) formation was explored in the Fe-B-Si-Nb alloy system though combined use of the atomic cluster line approach and the minor alloying strategy. The basic ternary compositions in the Fe-B-Si system were determined by the intersection points of two cluster lines, namely, Fe-B cluster to Si and Fe-Si cluster to B. 3at%-4at% Nb was added to the quaternary Fe-B-Si-Nb alloy. The casting experiments revealed that good glass-forming ability (GFA) occurred at the (Fe73.4Si8.2B18.4)(96)Nb-4 composition, and 3-mm diameter BMG samples were made. The glass transition temperature (T-g), crystallization temperature (T-x), and supercooled liquid region (Delta T-x=T-x-T-g) of this BMG were measured to be 866, 889, and 23 K, respectively. The BMG shows a high Vickers hardness of about Hv 1164, a Young's modulus of 180 GPa, and a good corrosion resistance in the solutions of 1 mol/L HCl and 3wt% NaCl.

引用

页码：323 / 326

页数：4

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