2002年7月
高サイクル疲労下の双晶境界近傍におけるすべり帯発生
日本機械学会論文集 A編
- ,
- 巻
- 68
- 号
- 7
- 開始ページ
- 1104
- 終了ページ
- 1111
- 記述言語
- 日本語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1299/kikaia.68.1104
- 出版者・発行元
- 一般社団法人日本機械学会
In order to investigate the criterion for the nucleation of persistent slip bands (PSBs) near a ∑3(111) coherent twin boundary, where is a preferential site for formation of PSBs, a high-cycle fatigue test is carried out at room temperature using a copper bicrystal specimen with the twin boundary. PSBs are observed near the boundary in the connection with the evolution of extrusion! intrusion on the specimen surface. The slip behavior is different from that predicted by the Schmid factor. A finite element method (FEM) analysis is conducted for the bicrystal, and it reveals that the increase of resolved shear stress on the specific slip system due to the constraint of deformation between the crystals is the main cause for promoting the nucleation of PSBs near the twin boundary. By taking into account the interaction between the primary and the secondary slip systems, it is possible to specify the nucleation behavior of PSBs near the twin boundary.
- リンク情報
- ID情報
-
- DOI : 10.1299/kikaia.68.1104
- ISSN : 0387-5008
- J-Global ID : 200902189575633827
- CiNii Articles ID : 110002370190
- CiNii Books ID : AN0018742X