Structures and properties of DIN661 alloy with fine-crystalline additives |
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| Affiliation: | 1. Sino-Russian Research Center for Light alloys, Tsinghua University, Beijing, 100084, China;2. Physical and Technological Department, Samara State Technical University, Samara, 443100, Russia;1. Department of Echocardiography, FuWai Cardiovascular Hospital and Cardiovascular Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Beilishi Road, Beijing, 100037, China;2. Department of Cardiology, Qilu Hospital, Medical College of Shandong University, Shandong, China;3. Sino-German Laboratory for Molecular Medicine, FuWai Cardiovascular Hospital and Cardiovascular Institute, Chinese Academy of Medical Sciences, Beijing, China;1. Key Laboratory of Automobile Materials, Ministry of Education (Jilin University), Department of Material Science and Engineering, Jilin University, Changchun 130022, China;2. Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;3. Graduate School of the Chinese Academy of Science, Beijing 100049, China;1. Département des sciences appliquées, Université du Québec à Chicoutimi, Chicoutimi, Québec, Canada G7H 2B1;2. Materials Engineering, GM Powertrain Group, Metal Casting Technology, Inc., Milford, NH 03055, USA;3. Research and Development, Corporativo Nemak, S.A. de C.V., P.O. Box 100, Bosques del Valle, Garza Garcia 66221, N.L., Mexico;1. Department of Advanced Materials Science and Engineering, Kangwon National University, Chuncheon, Kangwon-Do 200-701, Republic of Korea;2. Department of Advanced Materials Science and Engineering, Keimyung University, 1000 Shinedang-dong, Dalseo-gu, Taegu 704-701, South Korea;3. Division of Chemical Engineering, Hanyang University, Seongdong-gu, Seoul 133-791, South Korea;1. National Center of Novel Materials for International Research, Tsinghua University, Beijing 100084, China;2. School of Aerospace, Tsinghua University, Beijing 100084, China |
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| Abstract: | The structures and properties of DIN661 alloy with the addition of 1 wt.% of 40% La–60% Ce and with 0.3–0.4 wt.% of Al-based rapidly solidified additives together with SHS Al–Ti mater alloy were compared. Experiments were carried out under industrial conditions. The treatment with the rare earth additives resulted in considerable grain refinement but with worse mechanical properties because of the presence of large crystals of intermetallic phases, primary silicon, α-Al dendrites and greater gas porosity. Less quantities of rapidly solidified additives and SHS Al–Ti mater alloy provided refinement of these phases and better mechanical properties. |
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