Abstract
Alloys Cu-Al-Mn containing wt. 12 % Al and wt. 6-10 % Mn were investigated. The specimens were quenched from 1173 K in water and aged at 423 - 773 K. In all alloys during the quenching the particles of phase Cu 2.2 Mn 0.8 Al were generated. These particles were inherited by martensite. The presence of coherence particles of Cu 2.2 Mn 0.8 Al phase, which are non transformed during cooling, lead to the deformation of crystalline lattice of martensite and particles. The ΔG (chemical driving force of austenite - martensite transformation) and martensitic stresses were evaluated approximate. The short - lived aging caused the increasing of the quantity of the phase Cu 2.2 Mn 0.8 Al and the temperature M s . The average martensitic stress, strength of alloys and the driving force AG were not changed in this case. Thus the short - lived aging did not change the conditions of the thermoelastic martensite forming.
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