著者

天藤 雅之 竹下 哲郎 中澤 崇徳 木村 英隆 安保 秀雄

出版者

The Iron and Steel Institute of Japan

雑誌

鉄と鋼 (ISSN:00211575)

巻号頁・発行日

vol.79, no.1, pp.98-104, 1993-01-01 (Released:2009-06-30)

参考文献数

14

被引用文献数

14 21

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Room temperature creep behavior has been investigated for typical stainless steels (SUS304, SUS430, SUS410L). The mechanism of creep is discussed in comparison with creep data on a carbon steel (SM400).The results are summerized as follows:1) Stainless steels showed creep deformation at a stress around 0.2% proof stress. Though creep rate decreased monotonously with increase in time, deformation did not ceased even at a time 1000 h. The creep curve of SUS304 steel followed a logarithmic creep law.2) No creep was observed in steel SM400 below a critical strain rate at around 10-8S-1.3) The facts that interstitial free steels showed room temperature creep, and that SUS304 steel showed no creep at 300°C suggest that the suppression of creep can be attributed to the dynamic strain aging due to the interaction between dislocation and interstitial carbon and nitrogen atoms.

著者

原勢 二郎 太田 国照 清水 亮 竹下 哲郎

出版者

社団法人日本鉄鋼協会

雑誌

鉄と鋼 (ISSN:00211575)

巻号頁・発行日

vol.76, no.9, pp.1520-1527, 1990

被引用文献数

2 7

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Orientation distribution in the 17%Cr stainless steel rough rolled with inter-pass time of 10s (specimen A) and 30s (specimen B) respectively were investigated utilizing SEM-ECP (selected area electron channeling pattern).<BR>Large colonies, groups of grains with the same orientation, of {100} <011>orientation are found in the specimen A after rough rolling. It is proposed to be formed by the poor static recrystallization during rough rolling due to the short inter-pass time and the suppression effect of static recrystallization caused by the &alpha;-&gamma; transformations immediately after the final pass of the rough rolling.<BR>Large ridging is observed in the cold rolled and annealed specimen A.<BR>The cause of the large ridging is considered to be due to the large colonies of {100} <011> orientation inherited from the rough rolled stage and scattered asymmetrically along the central line of the specimen thickness.

著者

村上 英邦 橋本 浩二 田中 聖市 竹下 哲郎 横矢 博一

出版者

公益社団法人 日本金属学会

雑誌

まてりあ (ISSN:13402625)

巻号頁・発行日

vol.38, no.3, pp.245-247, 1999-03-20 (Released:2011-08-11)

参考文献数

8