Journal
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
Volume 9, Issue 3, Pages 5403-5409Publisher
ELSEVIER
DOI: 10.1016/j.jmrt.2020.03.066
Keywords
VSR; Internal friction; Dynamic mechanical analyzer
Funding
- Ministry of Science and Technology [MOST1062221-E-005-029-MY3]
Ask authors/readers for more resources
Vibratory stress relief has been reported to induce crystal lattice movements, which are forms of the internal friction of a material. In this study, low-carbon steel specimens were vibrated to analyze the evolutions of their internal frictions and stress-relieving effects. Specific vibration frequencies were found to produce relatively higher internal frictions and stress-relief ratios. For a fixed vibration frequency, higher vibrational amplitudes were found to induce higher internal frictions. When vibrated for the same amount of time but at varying amplitudes, the internal frictions of the specimens either decreased with time (which indicates the effects of stress relief) or increased with time and fracturing the specimen owing to fatigue. These results indicate that the increasing of internal friction could serve as an index for fatigue crack nucleation in low-carbon steel. (C) 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available