The effect of stress concentration on the bending behavior of a ZrCuNiAl bulk metallic glass

被引：9
作者：
Ning, Zhiliang [1 ,2 ]
Huang, Yongjiang [1 ,2 ]
Shen, Zhe [3 ]
Sun, Haicao [1 ,2 ]
Liang, Weizhong [4 ]
Sun, Jianfei [1 ,2 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China
[2] Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Heilongjiang, Peoples R China
[3] Aero Engine Corp China, Shenyang Engine Res Inst, Shenyang 110000, Liaoning, Peoples R China
[4] Heilongjiang Univ Sci & Technol, Sch Mat Sci & Engn, Harbin 150027, Heilongjiang, Peoples R China
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2017年 / 469卷
基金：
中国国家自然科学基金;
关键词：
Bulk metallic glasses; Stress concentration; Bending; Fracture; SHEAR BANDS; MECHANICAL-PROPERTIES; NOTCH SENSITIVITY; SERRATED FLOW; IN-SITU; FRACTURE; PLASTICITY; DEFORMATION; TEMPERATURE; ALLOYS;
D O I：
10.1016/j.jnoncrysol.2017.04.005
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The bending behaviors of a Zr55Cu30Ni5Al10 bulk metallic glass (BMG) samples with different notch radii are studied. The artificial notch will introduce stress concentration within the BMG sample during bending. That means, smaller notch radius leads to greater stress concentration around the notch area, and thus results in earlier failure and smoother fracture surface. Then, the sample with smaller notch radius possesses smaller fracture toughness. The relationship between the stress concentration and deformation feature has been discussed in terms of grease model.
引用
收藏
页码：19 / 26
页数：8
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