Phase Transformations in Rapidly Quenched Al–Cr–Zr Alloys during Heat Treatmentстатья
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Дата последнего поиска статьи во внешних источниках: 18 апреля 2017 г.
Аннотация:Results from studying the effect zirconium has on solid-phase processes in aluminum–chromium
alloys are presented. Rapidly quenched alloys are prepared via melt spinning. The quenching rate is ~106 K/s.
By means of physicochemical analysis, it is shown that doping Al–Cr alloys with zirconium improves the
thermal stability of supersaturated solid solutions and stabilizes their microcrystalline structure; this hinders
the coagulation of intermetallic phases and thus improves the hardness of the alloys. It is found that supersaturated
solid solutions of Cr and Zr in aluminum undergo stepwise decomposition; the temperature and
time parameters of each step are shown in TTT diagrams.