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Pulsed Nd:YAG laser welding of Cu54Ni6Zr22Ti18 bulk metallic glass

โœ Scribed by Jong Hyun Kim; Changhee Lee; D.M. Lee; J.H. Sun; S.Y. Shin; J.C. Bae


Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
515 KB
Volume
449-451
Category
Article
ISSN
0921-5093

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Phase evolution in Cu54Ni6Zr22Ti18 bulk
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A Nd:YAG pulse laser was chosen as the heat source to make a Cu 54 Ni 6 Zr 22 Ti 18 bulk metallic glass (BMG) weld with a critical thickness of 6 mm. To make a crystallization-free BMG weld, both empirical and numerical approaches were conducted. For the empirical approach, the pulse shape including

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Spherical Cu 54 Ni 6 Zr 22 Ti 18 metallic glass powders were prepared using a high-pressure gas atomizer, followed by consolidation using spark plasma sintering (SPS) process. The glass forming ability of both powders as atomized and bulks as SPSed was investigated by X-ray diffractometer (XRD) and