文献详情
Tuning glass formation and brittle behaviors by similar solvent element substitution in (Mn,Fe)-based bulk metallic glasses
文献类型期刊
作者Xu, Tao[1];Li, Ran[2];Xiao, Ruijuan[3];Liu, Gang[4];Wang, Jianfeng[5];Zhang, Tao[6]
机构
通讯作者Zhang, T (reprint author), Beihang Univ, Sch Mat Sci & Engn, Key Lab Aerosp Mat & Performance, Minist Educ, Beijing 100191, Peoples R China.
来源信息年:2015  卷:626  页码范围:16-26  
期刊信息MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING影响因子和分区  ISSN:0921-5093
关键词Similar element substitution; Bulk metallic glass; Glass-forming ability; Mechanical properties; Fracture toughness
增刊正刊
摘要A family of Mn-rich bulk metallic glasses (BMGs) was developed through the similar solvent elements (SSE) substitution of Mn for Fe in (MnxFe80-x)P10B7C3 alloys. The effect of the SSE substitution on glass formation, thermal stability, elastic constants, mechanical properties, fracture morphologies, Weibull modulus and indentation fracture toughness was discussed. A thermodynamics analysis provided by Battezzati et al. (L Battezzati, E. Garrone, Z. Metallkd. 75 (1984) 305-310) was adopted to explain the compositional dependence of the glass-forming ability (GFA). The elastic moduli follow roughly linear correlations with the substitution concentration of Mn in (MnxFe80-x)P10B7C3 BMGs. The introduction of Mn to replace Fe significantly decreases the plasticity of the resulting BMGs and the Weibull modulus of the fracture strength. A super-brittle Mn-based BMGs of (Mn55Fe25)P10B7C3 BMGs were found with the indentation fracture toughness (K-c) of 1.91 +/- 0.04 MPa m(1/2), the lowest value among all kinds of BMGs so far. The atomic and electronic structure of the selected BMGs were simulated by the first principles molecular dynamics calculations based on density functional theory, which provided a possible understanding of the brittleness caused by the similar chemical element replacement of Mn for Fe. (C) 2014 Elsevier B.V. All rights reserved.
收录情况SCIE(WOS:000350189300003)  EI(20150300434565)  
所属部门材料科学与工程学院
DOI10.1016/j.msea.2014.12.048
学科材料科学:综合;冶金工程;纳米科技
百度学术Tuning glass formation and brittle behaviors by similar solvent element substitution in (Mn,Fe)-based bulk metallic glasses
语言外文
被引频次3
人气指数119
浏览次数119
基金National Natural Science Foundation of China [51071008, 51131002, 51161130526]; Beijing Natural Science Foundation [2122036]; Fundamental Research Funds for the Central Universities; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
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