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001-es BibID:	BIBFORM085229
Első szerző:	Daróczi Lajos (fizikus)
Cím:	Stress dependence of non-chemical free energy contributions in Cu-Al-Ni shape memory alloy / L. Daróczi; Z. Palánki; S. Szabó; D. L. Beke
Dátum:	2004
ISSN:	0921-5093
Megjegyzések:	A Cu?24.0 at.% Al?2.2 at.% Ni?0.5 at.% B shape memory alloy was investigated experimentally under uniaxial tensile stress (?) up to 10MPa. Transformation temperatures and transformation strains as a function of ? were evaluated from the simultaneously measured temperature?elongation and temperature?resistance curves. Using appropriate analysis [Philos. Mag. B 82 (2002) 105; Scripta Mater. 43 (2000) 691; J. Phys. IV 11 (2001) Pr8], it is possible to determine the stress dependence of the volume derivatives of the elastic and dissipative free energies at the start and finish points of the forward and reverse transformations from the measured transformation temperatures and strains. From our experimental data, the above volume derivatives were calculated as a function of stress. The dissipative contributions both of the forward and reverse transformations increase with increasing stress. In case of elastic contributions, the difference between the forward and reverse transformation values as well as their decreasing tendency with increasing stress was clearly proved.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Thermoelastic transformation; Uniaxial stress; Dissipative energy; Elastic energy
Megjelenés:	Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing. - 378 (2004), p. 274-277. -
További szerzők:	Palánki Zoltán Szabó Sándor (1968-) (fizikus) Beke Dezső László (1945-) (fizikus)
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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