Kinetics of the phase separation in Cu–Al–Mn alloys and the influence on martensitic transformations

作者: Jordi Marcos , Lluís Mañosa , Antoni Planes , Ricardo Romero , María Luján Castro

DOI: 10.1080/14786430310001604994

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摘要: We have determined the shape of miscibility gap Cu–Al–Mn alloy system along Cu3Al → Mn composition line ((Cu3Al)1 − x Mnx with 0 ⩽ x ⩽ 1) using electrical resistance measurements. Electrical measurements also been used to study kinetics phase separation that takes place within gap. The effect such a on magnetic properties and martensitic transition displayed by these alloys has analysed. results obtained show produces an enhancement ferromagnetic character as result development L21 domains. In addition, gives rise increase in temperature reduction associated entropy change. Both effects are consequence growth Mn-rich domains do not transform martensitically.

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