Xuelian Wu, Xiyang Li, Zhenduo Wu, Xun-Li Wang, Xiaoya Wei, Jie Zhou, Zhaoping Lu, Elliot Paul Gilbert, Zhengming Sun, Jianxiang Ding, Dongming Liu, Chenchen Yuan, Si Lan
{"title":"等温退火过程中 Zr46Cu46Al8 和 Zr56Cu36Al8 块状金属玻璃结构演变的现场研究","authors":"Xuelian Wu, Xiyang Li, Zhenduo Wu, Xun-Li Wang, Xiaoya Wei, Jie Zhou, Zhaoping Lu, Elliot Paul Gilbert, Zhengming Sun, Jianxiang Ding, Dongming Liu, Chenchen Yuan, Si Lan","doi":"10.1007/s11837-024-06808-8","DOIUrl":null,"url":null,"abstract":"<p>The crystallization kinetics of Zr<sub>46</sub>Cu<sub>46</sub>Al<sub>8</sub> and Zr<sub>56</sub>Cu<sub>36</sub>Al<sub>8</sub> bulk metallic glasses (BMGs) during isothermal annealing in the supercooled liquid region has been studied using in situ simultaneous differential scanning calorimetry (DSC) and small-angle neutron scattering (SANS) technique. Zr<sub>46</sub>Cu<sub>46</sub>Al<sub>8</sub>, known for its good glass forming ability (GFA), exhibits a complex crystallization pathway. Initially, a transition region emerges, eventually evolving into the thermodynamically stable crystalline phase of Cu<sub>10</sub>Zr<sub>7</sub>, facilitated by continuous chemical redistribution at the late stage of annealing. In contrast, Zr<sub>56</sub>Cu<sub>36</sub>Al<sub>8</sub>, a poor glass former, crystallizes directly into the thermodynamically stable crystalline phase of CuZr<sub>2</sub> in a single step, with no observed chemical redistribution. Overall, the results suggest that continuous chemical redistribution following structural ordering may contribute to stabilizing the amorphous state and improving the thermal stability of BMGs. This study highlights the critical role of chemical redistribution in the crystallization of BMGs and introduces a new perspective for assessing their GFAs.</p>","PeriodicalId":605,"journal":{"name":"JOM","volume":"120 1","pages":""},"PeriodicalIF":2.1000,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"In Situ Investigation of Structural Evolution in Zr46Cu46Al8 and Zr56Cu36Al8 Bulk Metallic Glasses During Isothermal Annealing\",\"authors\":\"Xuelian Wu, Xiyang Li, Zhenduo Wu, Xun-Li Wang, Xiaoya Wei, Jie Zhou, Zhaoping Lu, Elliot Paul Gilbert, Zhengming Sun, Jianxiang Ding, Dongming Liu, Chenchen Yuan, Si Lan\",\"doi\":\"10.1007/s11837-024-06808-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The crystallization kinetics of Zr<sub>46</sub>Cu<sub>46</sub>Al<sub>8</sub> and Zr<sub>56</sub>Cu<sub>36</sub>Al<sub>8</sub> bulk metallic glasses (BMGs) during isothermal annealing in the supercooled liquid region has been studied using in situ simultaneous differential scanning calorimetry (DSC) and small-angle neutron scattering (SANS) technique. Zr<sub>46</sub>Cu<sub>46</sub>Al<sub>8</sub>, known for its good glass forming ability (GFA), exhibits a complex crystallization pathway. Initially, a transition region emerges, eventually evolving into the thermodynamically stable crystalline phase of Cu<sub>10</sub>Zr<sub>7</sub>, facilitated by continuous chemical redistribution at the late stage of annealing. In contrast, Zr<sub>56</sub>Cu<sub>36</sub>Al<sub>8</sub>, a poor glass former, crystallizes directly into the thermodynamically stable crystalline phase of CuZr<sub>2</sub> in a single step, with no observed chemical redistribution. Overall, the results suggest that continuous chemical redistribution following structural ordering may contribute to stabilizing the amorphous state and improving the thermal stability of BMGs. This study highlights the critical role of chemical redistribution in the crystallization of BMGs and introduces a new perspective for assessing their GFAs.</p>\",\"PeriodicalId\":605,\"journal\":{\"name\":\"JOM\",\"volume\":\"120 1\",\"pages\":\"\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-08-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"JOM\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s11837-024-06808-8\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"JOM","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s11837-024-06808-8","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
In Situ Investigation of Structural Evolution in Zr46Cu46Al8 and Zr56Cu36Al8 Bulk Metallic Glasses During Isothermal Annealing
The crystallization kinetics of Zr46Cu46Al8 and Zr56Cu36Al8 bulk metallic glasses (BMGs) during isothermal annealing in the supercooled liquid region has been studied using in situ simultaneous differential scanning calorimetry (DSC) and small-angle neutron scattering (SANS) technique. Zr46Cu46Al8, known for its good glass forming ability (GFA), exhibits a complex crystallization pathway. Initially, a transition region emerges, eventually evolving into the thermodynamically stable crystalline phase of Cu10Zr7, facilitated by continuous chemical redistribution at the late stage of annealing. In contrast, Zr56Cu36Al8, a poor glass former, crystallizes directly into the thermodynamically stable crystalline phase of CuZr2 in a single step, with no observed chemical redistribution. Overall, the results suggest that continuous chemical redistribution following structural ordering may contribute to stabilizing the amorphous state and improving the thermal stability of BMGs. This study highlights the critical role of chemical redistribution in the crystallization of BMGs and introduces a new perspective for assessing their GFAs.
期刊介绍：
JOM is a technical journal devoted to exploring the many aspects of materials science and engineering. JOM reports scholarly work that explores the state-of-the-art processing, fabrication, design, and application of metals, ceramics, plastics, composites, and other materials. In pursuing this goal, JOM strives to balance the interests of the laboratory and the marketplace by reporting academic, industrial, and government-sponsored work from around the world.
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