Evidence of 3D strain gradients associated with tin whisker growth - Archive ouverte HAL
Article Dans Une Revue Scripta Materialia Année : 2018

Evidence of 3D strain gradients associated with tin whisker growth

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We have used Differential Aperture X-ray Microscopy (DAXM) to measure grain orientations and deviatoric elastic strains in 3D around a tin whisker. The results show strain gradients through the depth of the tin coating, revealing a higher strain deeper in the Sn layer. These higher strains are explained by the volume change occurring during growth of the intermetallic phase Cu6Sn5 at the interface between the Cu substrate and the Sn coating and at grain boundaries between Sn grains.
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hal-02007991 , version 1 (05-02-2019)

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Johan Hektor, Jean-Baptiste Marijon, Matti Ristinmaa, Stephen Hall, Håkan Hall, et al.. Evidence of 3D strain gradients associated with tin whisker growth. Scripta Materialia, 2018, 144, pp.1-4. ⟨10.1016/j.scriptamat.2017.09.030⟩. ⟨hal-02007991⟩
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