Title :
PS-17 Improvement of the Inversion Procedure in Resonant Ultrasound Spectroscopy for Generally Oriented, High Anisotropic Crystals
Author :
Seiner, Hanus ; Sedlak, Petr ; Landa, Michal
Author_Institution :
Fac. of Nucl. Sci. & Phys. Eng., Czech Tech. Univ., Prague
Abstract :
This paper presents an improvement of the resonant ultrasound spectroscopy (RUS) inverse procedure for determination of elastic properties of shape memory alloys. Reliable mode identification and, thus, a well-posed resonance inversion was achieved by evaluation of both resonance frequencies and eigenvibration modes using a scanning laser interferometry measurement. The proposed approach was verified on determination of elastic constants and their temperature dependences of austenitic and martensitic phases of CuAlNi single crystals. The results on CuAlNi well correspond to our previous obtained by the pulse-echo measurement. The method can be applied for twinned structures, which enables investigation of naturally twinned shape memory alloys
Keywords :
aluminium alloys; copper alloys; elasticity; inverse problems; nickel alloys; reverse martensitic transformations; shape memory effects; spectroscopy; ultrasonic imaging; CuAlNi; CuAlNi single crystal austenitic phase; CuAlNi single crystal martensitic phase; RUS inverse procedure; eigenvibration modes; elastic property determination; inversion procedure; oriented anisotropic crystals; pulse-echo measurement; resonance frequencies; resonance inversion; resonant ultrasound spectroscopy; scanning laser interferometry measurement; twinned shape memory alloys; twinned structures; Anisotropic magnetoresistance; Crystals; Interferometry; Laser modes; Pulse measurements; Resonance; Resonant frequency; Shape memory alloys; Spectroscopy; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 2006. IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
1-4244-0201-8
Electronic_ISBN :
1051-0117
DOI :
10.1109/ULTSYM.2006.607
