Ultrasonic Properties of a Ti47.4Zr5.3Ni5.3Cu42 Glassy Alloy during Progressive Devitrification
Although a Ti47.4Zr5.3Ni5.3Cu42 glassy alloy does not occur precipitation of crystalline in annealing of prolonged time below glass transition temperature, it shows slightly embrittlement during passing through devitrification process. The embrittlment behavior may be connected to structural relaxation. Using ultrasonic, in this study, acoustic characteristics of the glassy alloy during progressive devitrification were examined in terms of structural relaxation. The structural changes are characterized by decreases in specific volume, bulk modulus, Lamè parameter and Poisson ratio, accompanied by structural relaxation.
Young Won Chang, Nack J. Kim and Chong Soo Lee
I. Seki et al., "Ultrasonic Properties of a Ti47.4Zr5.3Ni5.3Cu42 Glassy Alloy during Progressive Devitrification", Materials Science Forum, Vols. 561-565, pp. 1371-1374, 2007