Creep strengthening by lath boundaries in 9Cr ferritic heat-resistant steel

Masatoshi Mitsuhara, Shigeto Yamasaki, Masaki Miake, Hideharu Nakashima, Minoru Nishida, Junichi Kusumoto, Akihiro Kanaya

研究成果: ジャーナルへの寄稿記事

16 引用 (Scopus)

抄録

The interactions between dislocations and lath boundaries in Grade 91 steel were observed by an in situ transmission electron microscopy tensile test at 973 K. Dislocations glided slowly and bowed out in a martensite lath interior. The ends of the dislocation were connected to the lath boundaries. In a tempered specimen, the pinning stress caused by the lath boundary was estimated to be >70 MPa with a lath width of 0.4 m. In crept specimens, lath coarsening reduced the pinning effect.

元の言語英語
ページ(範囲)76-83
ページ数8
ジャーナルPhilosophical Magazine Letters
96
発行部数2
DOI
出版物ステータス出版済み - 2 1 2016

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steels
heat
tensile tests
martensite
grade
transmission electron microscopy
interactions

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

これを引用

Creep strengthening by lath boundaries in 9Cr ferritic heat-resistant steel. / Mitsuhara, Masatoshi; Yamasaki, Shigeto; Miake, Masaki; Nakashima, Hideharu; Nishida, Minoru; Kusumoto, Junichi; Kanaya, Akihiro.

:: Philosophical Magazine Letters, 巻 96, 番号 2, 01.02.2016, p. 76-83.

研究成果: ジャーナルへの寄稿記事

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AU - Kanaya, Akihiro

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