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Improvement of microstructure and mechanical properties of Sn-58Bi alloy with La2O3

机译:La2O3改善Sn-58Bi合金的组织和力学性能

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Sn-58Bi alloy particles and La2O3 were mechanically mixed and melted to prepare the composite solder. The microstructures of the solder and the IMC grain sizes were analyzed. Morphology results showed that the adding of La2O3 could restrain the segregation of Bi-rich phases and reduce the brittleness of the solder alloy. The hardness of solder increased with the addition of La2O3, which were tested by nano-indentation.
机译:机械混合Sn-58Bi合金颗粒和La2O3并使其熔融,以制备复合焊料。分析了焊料的微结构和IMC晶粒尺寸。形态学结果表明,添加La2O3可以抑制Bi富集相的偏析,降低焊料合金的脆性。通过添加纳米压痕测试,随着La2O3的添加,焊料的硬度增加。

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