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Aging effect on creep properties of SnBi solders

机译:时效对SnBi焊料蠕变性能的影响

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This paper discusses the effects of additive elements and aging on creep properties of SnBi solder system. Creep tests were performed on unaged and aged SnBi, SnBiAg and SnBiAgCuNiGe solders at three temperatures and the effects of them on creep rupture lifetimes and creep strain rates were discussed. The additive elements decreased creep strain rates and elongated creep rupture lifetimes. Causes of the effects were discussed from EBSD observations. The additive elements reduced the grain size and the aging coarsened grain size. The grain size had a pronounced effect on the creep strain rates and rupture lifetimes.
机译:本文讨论了添加元素和时效对SnBi焊料系统蠕变性能的影响。在三个温度下对未老化和老化的SnBi,SnBiAg和SnBiAgCuNiGe焊料进行了蠕变测试,并讨论了它们对蠕变断裂寿命和蠕变应变速率的影响。添加剂元素降低了蠕变应变率并延长了蠕变断裂寿命。从EBSD的观察结果中讨论了造成这种影响的原因。添加剂元素减小了晶粒尺寸,并且时效粗化了晶粒尺寸。晶粒尺寸对蠕变应变率和断裂寿命有显着影响。

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