Hot Ductility Loss in a Fe-Ni-Based Superalloy
Chen-Wei Li, An-Chou Yeh, Chi-San Chen and 1 more
Metals · 2015
doi:10.3390/met5042428 (opens in a new tab)
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Abstract
High temperature tensile tests have been conducted on samples of a Fe-Ni based superalloy, Incoloy A-286, and significant ductility loss has been observed at 1220 °C. Titanium-rich, thin-film-like phase has been found on the inter-granular facets of fracture surfaces. It appears that sulfur content of Ti-rich phase was higher than that of the matrix. At 1220 °C, liquation of Ti-rich phases has resulted in thin-film-like morphology along the grain boundary and caused the ductility loss during tensile deformation.
Abstract licence: CC BY
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