Crystallization of a Ti-based Bulk Metallic Glass Induced by Electropulsing Treatment |
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| Affiliation: | 1. National Key Laboratory of Precision Hot Processing of Metals,Harbin Institute of Technology,Harbin 150001, Heilongjiang,China;2. School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,Heilongjiang,China |
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| Abstract: | The effect of electropulsing treatment (EPT)on the microstructure of a Ti-based bulk metallic glass (BMG)has been studied.The maximum current density applied during EPT can exert a crucial role on tuning the microstructure of the BMG.When the maximum current density is no more than 2 720 A/mm2 ,the samples retains amorphous nature,whereas,beyond that,crystalline phases precipitate from the glassy matrix.During EPT,the maximum temperature within the samples EPTed at the maximum current densities larger than 2 720 A/mm2 is higher than the crystallization temperature of the BMG,leading to the crystallization event. |
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| Keywords: | bulk metallic glass electropulsing transmission electron microscopy crystallization microstructure |
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