کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1584955 1514908 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of the non-chemical free energy terms in martensitic transformations
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Determination of the non-chemical free energy terms in martensitic transformations
چکیده انگلیسی

In former papers we proposed a method for the determination of the volume derivatives of dissipative and elastic free energy contributions at the start and finish temperatures of the martensitic transformation. This analysis can be extended and from the normalized hysteresis loops the non-chemical free energies can be calculated at different transformed fractions. The self-consistency of the extended analysis is illustrated on the basis of hysteresis and differential scanning calorimetry measurements in polycrystalline Cu–Al–Ni shape memory alloys. In single-crystalline samples of the same alloy, the equilibrium transformation temperature has also been determined as the function of the uniaxial stress, which can make the above analysis complete and allows the determination of the absolute values of the elastic energy contributions as well.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 438–440, 25 November 2006, Pages 80–84
نویسندگان
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