書誌事項
- タイトル別名
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- Effect of Elongated Grain on High-Temperature Fatigue Crack Propagation Property of Ni-Based Superalloy
- Niキ チョウゴウキン ノ コウオン ヒロウ キレツデンパトクセイ ニ オヨボス 1ホウコウ ギョウコ ケッショウ ソシキ ノ エイキョウ
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説明
In order to clarify the crack propagation property of Nickel-based directionally solidified superalloy, longitudinal loading (L-type) specimens and transverse loading (T-type) specimens were subjected to the high temperature fatigue crack propagation tests. Fatigue crack propagation rate was correlated fairly well with effective stress intensity factor range ΔKeff, regardless of specimen type (L or T), stress range, and R ratio. In detail, crack propagation rate in T specimen showed eminent fluctuation and it was partially accelerated to 3 to 5 times faster than the average. Detailed observation of specimens revealed that the fluctuation was strongly dependent on the micro-structure along the crack propagation path. Both of transgranular and intergranular crack types were observed on the crack propagation path of T specimen, while that in L specimen showed only the transgranular type. Moreover, transgranular crack showed two different failure planes, they were along {111} or {001} planes, respectively. Since most part of the whole tests were governed by transgranular cracking, they showed mostly the same propagation property. Intergranular crack in T specimen showed much faster propagation than the transgranular crack, and caused eminent fluctuation of propagation rate.
収録刊行物
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- 材料
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材料 54 (2), 130-135, 2005
公益社団法人 日本材料学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282680394846336
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- NII論文ID
- 110006266460
- 30020595828
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- NII書誌ID
- AN00096175
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- COI
- 1:CAS:528:DC%2BD2MXisVOrtrc%3D
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- ISSN
- 18807488
- 05145163
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- NDL書誌ID
- 7248121
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
