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Investigation of Subsequent Viscoplastic Deformation of Austenitic Stainless Steel Subjected to Cyclic Preloading

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Title: Investigation of Subsequent Viscoplastic Deformation of Austenitic Stainless Steel Subjected to Cyclic Preloading
Authors: Mayama, T.1 Browse this author →KAKEN DB
Sasakia, K. Browse this author →KAKEN DB
Authors(alt): 眞山, 剛1
Keywords: Creep
Dislocations
Stress relaxation
Cyclic loading
Viscoplastic material
Electron microscopy
Mechanical testing
Issue Date: Feb-2006
Publisher: Elsevier Ltd
Journal Title: International Journal of Plasticity
Volume: 22
Issue: 2
Start Page: 374
End Page: 390
Publisher DOI: 10.1016/j.ijplas.2005.03.008
Abstract: This paper investigates the effects of cyclic preloading on the subsequent viscoplastic deformation. A series of experiments such as the subsequent creep, subsequent stress relaxation, and cyclic loading with strain rate changes after cyclic preloading were conducted with Type 304 stainless steel at room temperature. The cyclic proportional and non-proportional loadings were conducted as cyclic preloadings. Tension-compression loading was chosen as the cyclic proportional loading, and circular and cruciform loading as the cyclic non-proportional loading. The experimental results showed that the subsequent deformation changes with the number of cycles of cyclic preloading. The differences in the subsequent deformation were examined by transmission electron microscopy (TEM). The observations suggest that changes in the dislocation structure depending on the number of cycles of cyclic preloading affect the subsequent viscoplastic deformation.
Relation: http://www.sciencedirect.com/science/journal/07496419
Type: article (author version)
URI: http://hdl.handle.net/2115/7372
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 眞山 剛

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