Three-dimensional observation of precipitates in 10Cr ferric heat-resistant steel with V and Nb

Mitsuhara, Masatoshi*; Ikeda, Kenichi*; Hata, Satoshi*; Nakashima, Hideharu*; Wakai, Takashi

Kyushu Daigaku Cho Koatsu Denkenshitsu Kenkyu Hokoku, 32, 2 Pages, 2008/08

no abstracts in English

Electron tomographic observation of precipitates on lath boundaries in 10Cr ferritic steel bearing V

Mitsuhara, Masatoshi*; Ikeda, Kenichi*; Hata, Satoshi*; Nakashima, Hideharu*; Wakai, Takashi

Materia, 46(12), P. 800, 2007/12

https://ci.nii.ac.jp/naid/10020007505

High Cr ferritic steels bearing V have high creep strength due to the precipitation hardening. In order to enhance the efficiency of the precipitation hardening, the elemental components, shape and distribution of the precipitates should be comprehended. In this study, we investigated that of the precipitates in the 10Cr ferritic steel bearing V using the STEM-EDS analysis and the three-dimensional electron tomography (3D-ET) observation. The two types of precipitates on the lath boundaries could be observed, which were lump-shaped precipitates and film-shaped precipitates. They had the different elemental component. From the 3D-ET observation, it revealed that the film-shaped precipitates covered the lath boundary widely. Therefore, the film-shaped precipitates are expected to be effective for the stabilization of martensitic microstructure during the creep deformation.

3D tomography observation of high Cr ferritic heat resistant steels strengthened by V and Nb

Mitsuhara, Masatoshi*; Ikeda, Kenichi*; Hata, Satoshi*; Nakashima, Hideharu*; Wakai, Takashi

no journal, , 

no abstracts in English

EDS analysis and electron tomography of new precipitates on lath boundaries in 10Cr ferritic heat-resistant steel with V

Mitsuhara, Masatoshi*; Ikeda, Kenichi*; Hata, Satoshi*; Nakashima, Hideharu*; Wakai, Takashi

no journal, , 

no abstracts in English

Three-dimensional microstructure analysis using electron tomography method and its development to mechanical property evaluation

Mitsuhara, Masatoshi*; Oshibuchi, Kota*; Hata, Satoshi*; Ikeda, Kenichi*; Nakashima, Hideharu*; Otsuka, Satoshi; Kaito, Takeji; Inoue, Masaki

no journal, , 

no abstracts in English

Creep behavior of oxide dispersion strengthened 9Cr ferritic steels under high temperature and low stresses conditions

Oshibuchi, Kota*; Mitsuhara, Masatoshi*; Ikeda, Kenichi*; Hata, Satoshi*; Nakashima, Hideharu*; Otsuka, Satoshi

no journal, ,