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In this paper, the hot deformation behavior of a TNM TiAl‐based alloy (Ti–44.45Al–3.80Nb–1.01Mo–0.29Si–0.14B) is investigated via isothermal compression tests. The experimental results demonstrate that the critical strain for dynamic recrystallization gradually decreases with increasing deformation temperature. At the initial stage of the low‐temperature deformation process, the deformation is mainly...
High temperature piezoelectric materials serving at harsh environment without failure are desired for structural health monitoring and/or non destructive evaluation of the modern aerospace structures at elevated temperatures (above 600°C). In this report, different high temperature piezoelectric crystals, including the langasite (LGS) type crystals and GaPO4 in trigonal system, melilite type and fresnoite...
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