The Fatal Defects in Cast Al-Si Alloys Due to Sn Addition
preprint
OA: closed
CC-BY-4.0
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Investigating Sn addition in Al-Si alloys revealed amorphous Sn oxides near alumina films, which exacerbate shrinkage pores, initiate cracks, and degrade mechanical properties.
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Abstract
The cast defects strongly degrade the mechanical properties in cast alloys. The effect of Sn addition on Al-Si alloys was investigated by 3D computed tomography, SEM and TEM. Amorphous Sn oxides are found near the alumina film, cause more shrinkage pores, initiate cracks and deteriorate mechanical properties. This work suggests not adding Sn in various Al alloys used in cast state.
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- europepmc
- last seen: 2026-05-19T01:45:01.086888+00:00
- unpaywall
- last seen: 2026-05-23T02:00:01.238055+00:00
License: CC-BY-4.0