ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
In this work we present a novel procedure, involving linear viscoelastic analysis, todiscriminate the two possible contributions of the observed damping peak which appears around840 K – 1050 K in mechanically deformed high purity single-crystalline molybdenum. Aninteresting feature of the procedure is that, for low damping samples, it can efficiently resolveexperimental peaks that result from the superposition of different processes independently of theratio between their relaxation strengths. This allows us to confirm that two different relaxationprocesses appear in molybdenum in the temperature range about 0.3 Tm, one around 840 K, and theother one near 1050 K. These can be related to diffusion and to a coupled mechanism involvingcreation and diffusion of vacancies, respectively
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.137.49.pdf