Ultrasonic assisted micro shear punching of amorphous alloy
Ultrasonic assisted micro shear punching of amorphous alloy
复制标题
非晶合金超声辅助微剪切冲裁
DOI：
10.1080/21663831.2018.1500399
复制
发表时间：
2018
影响因子：
8.3
通讯作者：
Jiang Ma
中科院分区：
文献类型：
--
作者：
Feng Luo;Fei Sun;Kang-sen Li;Feng Gong;Xiong Liang;Xiao-yu Wu;Jiang Ma
尽管非晶合金具有优异的性能，但其应用范围有限，寻找塑性成形能力一直是一个长期存在的问题。在这项工作中，提出了一种有效的超声辅助微剪切冲压（UMSP）方法，用于非晶合金。利用超声振动和熔融塑料粘性介质，在50 ms内成功制备出从微米尺度到宏观尺度的一系列形状和制品。与传统的晶态合金不同，非晶合金由于其独特的无序结构，在超声锤击过程中会在一定区域内软化，从而形成低应力成形方法。本研究发现了非晶合金与高频振动之间新的作用机理，为非晶合金制品的制备提供了一种有效的途径。
Despite the excellent properties, amorphous alloys find limited applications and to find plastic forming ability has been a longstanding problem. In this work, an effective ultrasonic assisted micro-shear punching (UMSP) method is proposed for amorphous alloys. By applying ultrasonic vibration and molten plastics viscous medium, a series of shapes and products with micro-length scale to macro-length scale can be successfully fabricated in 50 ms. Different from traditional crystalline alloys, the amorphous alloys become soft at certain regions during the ultrasonic hammering owing to the unique disordered structures, thereby resulting in the low-stress forming approach. In this work, a new acting mechanism was found between amorphous alloy and the high-frequency vibration, providing an efficient approach for the fabrication of amorphous alloy products.