-
- 高島 和希
- 熊本大学工学部知能生産システム工学科
-
- HALFORD Timothy P.
- P & I Laboratory, Tokyo Inst. of Tech.
-
- RUDINAL Discar
- P & I Laboratory, Tokyo Inst. of Tech.
-
- 肥後 矢吉
- 東京工業大学精密工学研究所
書誌事項
- タイトル別名
-
- Fracture Toughness Testing of Micro-Sized TiAl Based Intermetallic Compound Specimens
- マイクロサイズ シケンヘン ニ ヨル TiAl キキンゾク カン カゴウブツ ノ ハカイジンセイ シケン
この論文をさがす
抄録
A micro-sized fracture toughness testing technique has been applied to investigate the fracture properties of colonies in a fully lamellar Ti-46Al-5Nb-1W alloy. Micro-sized cantilever specimens with a size≈10×20×50 μm3 were prepared by focused ion beam machining. Notches with a width of 0.5 μm and a depth of 5 μm were also introduced into these specimens by focused ion beam machining. Fracture tests were successfully completed using a mechanical testing machine for micro-sized specimens at room temperature. The fracture toughness values obtained were in the range 1.4-6.9 MPam1/2. Fracture surface observations indicate that these variations are due to differences in local lamellar orientations ahead of the notch. These fracture toughness values are also lower than those having been previously reported in conventional samples. This may be due to the absence of significant extrinsic toughening mechanisms in these micro-sized specimens. Fracture mechanisms of these alloys are also considered on the micrometer scale. The results obtained in this investigation give important and fundamental information on the development of TiAl based alloys with high fracture toughness.
収録刊行物
-
- 材料
-
材料 54 (10), 1036-1040, 2005
公益社団法人 日本材料学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390001205418840704
-
- NII論文ID
- 110006266404
-
- NII書誌ID
- AN00096175
-
- ISSN
- 18807488
- 05145163
-
- NDL書誌ID
- 7489310
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
-
- 抄録ライセンスフラグ
- 使用不可
