理化检验-物理分册2024，Vol.60Issue(8)：23-30,8.DOI:10.11973/lhjy-wl240105
Zr61Ti2Cu25Al12非晶态合金在四点弯曲加载模式下的弯曲弹性极限
Flexural elastic limit of Zr61Ti2Cu25Al12 amorphous alloy under four-point bending loading mode
沈勇 1温井龙1
作者信息
- 1. 中国科学院金属研究所,沈阳 110016
- 折叠
摘要
Abstract
The bending test of Zr61Ti2Cu25Al12 amorphous alloy was designed according to the span-thickness ratio recommended in the current metal material bending performance test standard,and the specimen would undergo large deflection elastic deformation.It was proved that the upper limit of the span-to-thickness ratio of the bending specimen without large deflection elastic deformation depended on the elastic strain limit of the material.The elastic strain limit of the zirconium-based amorphous alloy was 2%,and the upper limit of the span-to-thickness ratio without large deflection elastic deformation in the four-point 1/4 bending mode was 22.Under the premise of ensuring small deflection deformation,through the four-point bending cyclic loading and unloading test,the bending yield stress corresponding to the initial shear deformation of the outermost surface of the Zr61Ti2Cu25Al12 alloy sample was about 1 760 MPa,and the bending elastic limit σp0.01 corresponding to 0.01%residual strain was 2 040 MPa.关键词
非晶态合金/四点弯曲/弯曲弹性极限/跨厚比/大挠度弹性变形Key words
amorphous alloy/four-point bending/bending elastic limit/span-thickness ratio/large deflection elastic deformation分类
矿业与冶金引用本文复制引用
沈勇,温井龙..Zr61Ti2Cu25Al12非晶态合金在四点弯曲加载模式下的弯曲弹性极限[J].理化检验-物理分册,2024,60(8):23-30,8.
