Impact of austenite nanograins induced by sliding friction on interfacial strength during ultrasonic welding-Reference-Cited by-同舟云学术

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

Published:2024-01-17 Issue:1 Volume:29 Page:3-11
ISSN:1362-1718
Container-title:Science and Technology of Welding and Joining
language:en
Short-container-title:Science and Technology of Welding and Joining

Author:

Chu Hue-En¹,Sun Yi-Hsuan²,Chen Tai-Cheng³,Yen Hung-Wei²,Lin Jhe-Yu¹

Affiliation:

1. Department of Mechanical Engineering, National Taipei University of Technology, Taipei

2. Department of Materials Science and Engineering, National Taiwan University, Taipei

3. Nuclear Fuels and Materials Division, Institute of Nuclear Energy Research, Taoyuan

Abstract

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.

Publisher

SAGE Publications

Link

https://journals.sagepub.com/doi/pdf/10.1177/13621718231212635

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