Extension of high cycle fatigue life by the formation of nano-sized martensite particles at intersections of dislocations in an austenitic stainless steel

T. Inamura, Masayuki Shimojo, K. Takashima, Y. Higo

研究成果: Conference contribution

1 引用 (Scopus)

抄録

A new fatigue strengthening method which is applicable for both the micro-sized materials and ordinary-sized materials have been proposed. Dislocations are pinned at their intersections by the formation of nano-crystals after cold work in this strengthening method. Nano-sized α′-martensite particles, the diameter of which was approximately 5 nm, were formed by a cryogenic treatment at a certain temperature above M b (martensite burst starting temperature) in a commercially available 316-type austenitic stainless steel. These nano-particles are considered to be formed at intersections of dislocations. Fatigue life tests using ordinary-sized specimens revealed that high cycle fatigue life of the 316-type austenitic stainless steel was extended by the cryogenic treatment and this is considered to be due to the pinning of dislocations by the formation of nano-sized α′-martensite particles.

元の言語English
ホスト出版物のタイトルMaterials Research Society Symposium - Proceedings
編集者D. Farkas, H. Kung, M. Mayo, H. Swygenhoven, J. Weertman
634
出版物ステータスPublished - 2001
外部発表Yes
イベントStructure and Mechanical Properties of Nanophase Materials- Theory and Computer Si,ulation v.s Experiment - Boston, MA, United States
継続期間: 2000 11 282000 11 30

Other

OtherStructure and Mechanical Properties of Nanophase Materials- Theory and Computer Si,ulation v.s Experiment
United States
Boston, MA
期間00/11/2800/11/30

Fingerprint

Austenitic stainless steel
Martensite
Fatigue of materials
Cryogenics
Temperature
Crystals

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

これを引用

Inamura, T., Shimojo, M., Takashima, K., & Higo, Y. (2001). Extension of high cycle fatigue life by the formation of nano-sized martensite particles at intersections of dislocations in an austenitic stainless steel. : D. Farkas, H. Kung, M. Mayo, H. Swygenhoven, & J. Weertman (版), Materials Research Society Symposium - Proceedings (巻 634)

Extension of high cycle fatigue life by the formation of nano-sized martensite particles at intersections of dislocations in an austenitic stainless steel. / Inamura, T.; Shimojo, Masayuki; Takashima, K.; Higo, Y.

Materials Research Society Symposium - Proceedings. 版 / D. Farkas; H. Kung; M. Mayo; H. Swygenhoven; J. Weertman. 巻 634 2001.

研究成果: Conference contribution

Inamura, T, Shimojo, M, Takashima, K & Higo, Y 2001, Extension of high cycle fatigue life by the formation of nano-sized martensite particles at intersections of dislocations in an austenitic stainless steel. : D Farkas, H Kung, M Mayo, H Swygenhoven & J Weertman (版), Materials Research Society Symposium - Proceedings. 巻. 634, Structure and Mechanical Properties of Nanophase Materials- Theory and Computer Si,ulation v.s Experiment, Boston, MA, United States, 00/11/28.
Inamura T, Shimojo M, Takashima K, Higo Y. Extension of high cycle fatigue life by the formation of nano-sized martensite particles at intersections of dislocations in an austenitic stainless steel. : Farkas D, Kung H, Mayo M, Swygenhoven H, Weertman J, 編集者, Materials Research Society Symposium - Proceedings. 巻 634. 2001
Inamura, T. ; Shimojo, Masayuki ; Takashima, K. ; Higo, Y. / Extension of high cycle fatigue life by the formation of nano-sized martensite particles at intersections of dislocations in an austenitic stainless steel. Materials Research Society Symposium - Proceedings. 編集者 / D. Farkas ; H. Kung ; M. Mayo ; H. Swygenhoven ; J. Weertman. 巻 634 2001.
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