Weldability of Cu54Zr22Ti18Ni6 bulk metallic glass by ultrasonic welding processing

Cu54Zr22Ti18Ni6 (numbers indicate at%) bulk metallic glass with glass forming ability of 6mm was joined using ultrasonic welding. After welding fully amorphous materials, crystallization was investigated using micro area x-ray diffraction, scanning electron microscopy, and differential scanning calo...

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Bibliographic Details
Published inMaterials letters Vol. 130; pp. 160 - 163
Main Author Kim, Jonghyun
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2014
Subjects
Amorphous materials
Crystallization
CuZrTiNi bulk metallic glass
Differential scanning calorimetry
Diffraction
Metallic glasses
Phase evolution
Ultrasonic welding
Weldability
X-rays
Ultrasonic welding
Phase evolution
CuZrTiNi bulk metallic glass
Weldability
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Summary:Cu54Zr22Ti18Ni6 (numbers indicate at%) bulk metallic glass with glass forming ability of 6mm was joined using ultrasonic welding. After welding fully amorphous materials, crystallization was investigated using micro area x-ray diffraction, scanning electron microscopy, and differential scanning calorimetry. However, there was no crystallization through the joint and the weld interface could not be ascertained. In view of joint morphology and phase stability, ultrasonic welding processing shows a potent capability for joining bulk metallic glass materials. •Bulk metallic glasses is crystallized by ultrasonic vibration.•Successfully welded 1mm thick Cu base BMG without any evidence of crystallization.•Ultrasonic welding processing shows a potent capability for joining BMG.
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ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2014.05.056