Impact of austenite nanograins induced by sliding friction on interfacial strength during ultrasonic welding

被引：2
|
作者：
Chu, Hue-En [1 ]
Sun, Yi-Hsuan [2 ]
Chen, Tai-Cheng [3 ]
Yen, Hung-Wei [2 ]
Lin, Jhe-Yu [1 ]
机构：
[1] Natl Taipei Univ Technol, Dept Mech Engn, 1,Sec 3,Zhongxiao E Rd, Taipei 10608, Taiwan
[2] Natl Taiwan Univ, Dept Mat Sci & Engn, Taipei, Taiwan
[3] Inst Nucl Energy Res, Nucl Fuels & Mat Div, Taoyuan, Taiwan
来源：
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2024年 / 29卷 / 01期
关键词：
ultrasonic welding; stainless steels; grain refinement; nanograins; dynamic recrystallisation; 316L STAINLESS-STEEL; BONDING INTERFACE; GRAIN-STRUCTURE; ALLOY; ALUMINUM; MICROSTRUCTURE; DEFORMATION; EVOLUTION; PHASE; TEMPERATURE;
D O I：
10.1177/13621718231212635
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study investigated the effect of nanograin formation on joint strength through sliding friction during ultrasonic welding (USW). The nanograined austenite phase would induce the surface strengthening effect, potentially impeding the bonding process. A bonding strength exceeded 2000 N within a short welding duration of 2.5 s. Interestingly, the strength was attributed to ultrafine-grained interfacial microstructure resulting from the plastic flow during processing. This unique nanograined microstructure formed from dynamic recrystallisation unexpectedly facilitated the bond formation rather than hindering the bonding process. This study gained insights into the critical interfacial microstructure required for the USW of metals and alloys with high melting temperatures.
引用
收藏
页码：3 / 11
页数：9
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