期刊
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
卷 45A, 期 2, 页码 918-926出版社
SPRINGER
DOI: 10.1007/s11661-013-2008-0
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资金
- University of Queensland-Nihon Superior collaborative research program
- Australian Synchrotron international synchrotron access program [AS/IA114/4743, AS/IA124/6235]
- University of Queensland International (UQI) Scholarship
- China Scholarship Council (CSC) Scholarship
- EPSRC [EP/H016848/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H016848/1] Funding Source: researchfish
High resolution time-resolved X-ray imaging with synchrotron radiation was used for in situ observation of four distinct events during solidification of a Sn-0.7Cu-0.15Zn solder despite small composition and density differences. These included beta Sn dendrite growth, Sn-Cu6Sn5 univariant eutectic growth, microporosity formation, and a polyphase reaction in the last stages of freezing. The development of microstructure was described quantitatively by tracking the loci of dendrite tips during grain growth. The results have implications for microstructure control and the understanding of structure-property relationships in Sn-Cu-Zn lead-free solders. (C) The Minerals, Metals & Materials Society and ASM International 2013
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