visokoxromistie stali
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prezentatsiya na temu: visokoxromistie stali prezentatsiya na temu: visokoxromistie stali raxmatov abdulaziz sistema legirovaniya fe-cr-s yavlyaetsya vesma interesnoy i poslujila dlya sozdaniya tselogo semeystva staley razlichnix strukturnix klassov, pomimo visokoy prochnosti obladayushix vesma znachitelnoy korrozionnoy stoykostyu. eto tem bolee tsennoe svoystvo, chto dostigaetsya ono za schet legirovaniya stali deshevim i malodefitsitnim xromom. visokaya korrozionnaya stoykost xromistix staley ob'yasnyaetsya okisnoy plenkoy, privodyashey k passivatsii ee poverxnosti. v zavisimosti ot soderjaniya xroma korrozionnaya stoykost stali soxranyaetsya do temperatur 600...800°s, a s uvelicheniem ego soderjaniya obespechivaetsya okalinostoykost pri visokix temperaturax (800...1100°s). struktura xro...
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