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Crystallization of Zr 55 Cu 30 Al 10 Ni 5 Bulk Metallic Glass in Laser Welding: Simulation and Experiment
Author(s) -
Chen Biao,
Shi Tielin,
Li Mo,
Wen Chi,
Liao Guanglan
Publication year - 2015
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201400145
Subject(s) - materials science , crystallization , metallurgy , amorphous metal , welding , laser , metal , analytical chemistry (journal) , alloy , chemical engineering , optics , physics , chemistry , chromatography , engineering
Using Kissinger analysis and temperature field simulation we analyze the crystallization of Zr 55 Cu 30 Al 10 Ni 5 bulk metallic glass (BMG) during laser welding. We obtain the continuous heating transformation curve, the distribution of temperature field, and thermal cycle curves from which the thermal analysis is performed. We find that the material in the welding fusion zone is fully penetrated and the temperature in the base material zone is far below the crystallization temperature. Laser welding experiments are conducted to validate the Kissinger analysis and the simulation results. The welded joints are examined and the results are consistent with the simulation prediction. Therefore, the Kissinger analysis and temperature field simulation provide a convenient and reliable way to predict the crystallization of BMG during laser welding, which is beneficial to optimize the welding process and guide the laser welding of BMG.