Flexural Strength and Weibull Analysis of Bulk Metallic Glasses

作     者：Jijun Zhang Diana Estevez Yuan-Yun Zhao Lishan Huo Chuntao Chang Xinmin Wang Run-Wei Li 

作者机构：Key Laboratory of Magnetic Materials and DevicesNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Zhejiang Province Key Laboratory of Magnetic Materials and Application TechnologyNingbo Institute of Materials Technology and EngineeringChinese Academy of SdencesNingho 315201China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2016年第32卷第2期

页      面：129-133页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the Zhejiang Provincial Natural Science Foundation of China(Grant No.Q12E010015) the Ningbo Municipal Natural Science Foundation(Grant No.2015A610074) 

主　　题：Bulk metallic glasses Ceramics Weibu Umodulus Flexural strength Mechanical properties 

摘      要：The flexural strength reliability of bulk metallic glasses （BMGs） plates is analyzed using Weibull statistics. The Weibull modulus （m） and characteristic strength （σ0） of the Zr48Cu45AI7 BMG are 34 and 2630 MPa, respectively, which are much higher than the values of fine ceramics （m 〈 30, σ0 〈 1600 MPa）. In particular, the m values obtained by flexural strength and compressive strength statistics of the Mg61Cu28Gd11 BMG are 5 and 33, respectively, indicating that the m values of BMGs are test method dependent, and only the m values obtained by flexural strength statistics can be used to make a convincible comparison with those of ceramics.