کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7996974 1516211 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of cobalt on the nucleation and grain refinement of Sn-3Ag-0.5Cu solders
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Effects of cobalt on the nucleation and grain refinement of Sn-3Ag-0.5Cu solders
چکیده انگلیسی
We show that cobalt-microalloying causes significant grain refinement in large samples (60 g) of Sn-3Ag-0.5Cu solder. Nucleation occurs on the (100) facet of αCoSn3 crystals with a reproducible orientation relationship of (100)Sn ‖ (100)CoSn3 with [001]Sn ‖ [001]CoSn3, which has a planar lattice mismatch of ∼4%. In 550 μm solder joints on Cu substrates, Co microalloying alters the βSn nucleation location to an αCoSn3 particle in the bulk liquid and increases the number of βSn nucleation events when the cooling rate is higher than ∼5 K/s. However, Co-microalloying caused only weak grain refinement in sample volumes relevant to solder joints which is explained using nucleation and grain refinement theories.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 682, 15 October 2016, Pages 326-337
نویسندگان
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