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Dissimilar metal weld overlays of nickel-base alloys on low-alloy steel components are commonly used in the oil and gas, petrochemical, and power generation industries to provide corrosion and oxidation resistance in a wide range of service environments and temperatures. Traditionally, dissimilar weld overlays are produced using cold or hot wire gas tungsten arc welding. This study aims to identify...
The reliability of flip-chip Sn/Cu solder joint strongly depends on Kirkendall voids, since it affects the mechanical properties of the solder joints. In this paper, the formation of Kirkendall voids (KVs) at the interface of Sn/Cu joints was investigated by changing various Cu substrates, namely, high-purity Cu (HP Cu), electroplated Cu (EP Cu), and vacuumed-sputtered Cu (VS Cu). It is found that...
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