Deformation mechanisms of a micro-sized austenitic stainless steel with fine grains

G. P. Zhang, K. Takashima, Masayuki Shimojo, Y. Higo

研究成果: Conference contribution

抄録

In this study, deformation behavior of fine-grained austenitic stainless steel micro-cantilever beams was investigated using a newly developed testing machine for micro-sized specimens. The microbeams were deformed to different strain hardening stages of the material, and then the detailed deformation behavior on the specimen surface at the corresponding strain hardening stage was examined by scanning electron microscopy. Two deformation mechanisms corresponding to different strain hardening stages were found in the micro-sized austenitic stainless steel with fine grains. The dislocation slip mechanism characterized by the extensive dislocation slips and their interaction with grain boundaries resulted in the stage I strain hardening. With increasing deformation, the grain boundary sliding (GBS) mechanism at the stage II and subsequently intergranular cracking occurred. The differences in stress condition and work-hardening behavior on the top tension-side and rear compression-side surfaces of the micro-cantilever beam resulted in the different deformation behavior.

元の言語English
ホスト出版物のタイトルMaterials Research Society Symposium - Proceedings
編集者H Kahn, M Boer, M Judy, S Spearing
657
出版物ステータスPublished - 2001
外部発表Yes
イベントMaterial Science of Microelectromechanical Systems (MEMS) Devices III - Boston, MA, United States
継続期間: 2000 11 272000 11 28

Other

OtherMaterial Science of Microelectromechanical Systems (MEMS) Devices III
United States
Boston, MA
期間00/11/2700/11/28

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Austenitic stainless steel
Strain hardening
Cantilever beams
Grain boundary sliding
Dislocations (crystals)
Grain boundaries
Scanning electron microscopy
Testing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

これを引用

Zhang, G. P., Takashima, K., Shimojo, M., & Higo, Y. (2001). Deformation mechanisms of a micro-sized austenitic stainless steel with fine grains. : H. Kahn, M. Boer, M. Judy, & S. Spearing (版), Materials Research Society Symposium - Proceedings (巻 657)

Deformation mechanisms of a micro-sized austenitic stainless steel with fine grains. / Zhang, G. P.; Takashima, K.; Shimojo, Masayuki; Higo, Y.

Materials Research Society Symposium - Proceedings. 版 / H Kahn; M Boer; M Judy; S Spearing. 巻 657 2001.

研究成果: Conference contribution

Zhang, GP, Takashima, K, Shimojo, M & Higo, Y 2001, Deformation mechanisms of a micro-sized austenitic stainless steel with fine grains. : H Kahn, M Boer, M Judy & S Spearing (版), Materials Research Society Symposium - Proceedings. 巻. 657, Material Science of Microelectromechanical Systems (MEMS) Devices III, Boston, MA, United States, 00/11/27.
Zhang GP, Takashima K, Shimojo M, Higo Y. Deformation mechanisms of a micro-sized austenitic stainless steel with fine grains. : Kahn H, Boer M, Judy M, Spearing S, 編集者, Materials Research Society Symposium - Proceedings. 巻 657. 2001
Zhang, G. P. ; Takashima, K. ; Shimojo, Masayuki ; Higo, Y. / Deformation mechanisms of a micro-sized austenitic stainless steel with fine grains. Materials Research Society Symposium - Proceedings. 編集者 / H Kahn ; M Boer ; M Judy ; S Spearing. 巻 657 2001.
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