Effect of bias stress on non-linear internal friction of Al-Mg alloy

Qi Tan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The influence of longitudinal and torsional bias stresses on anomalous amplitude-dependent internal friction was studied. The longitudinal bias stress may always weaken the anomalous amplitude dependent effect, while the torsional one may induce different effects from different directions applied. Bias stress effect exhibits only in properly heated treated and cold worked alloy specimens. The anomalous amplitude-dependent internal friction peaks, P3, P2 and P1, are found to be related closely to slant dislocation kink chains. Thus, the application of bias stress to internal friction would be contributed to the study on dislocation structure.

Original languageEnglish
Pages (from-to)166-171
Number of pages6
JournalActa Metallurgica Sinica Series A, Physical Metallurgy & Materials Science
Volume5 A
Issue number3
StatePublished - May 1992
Externally publishedYes


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