書誌事項
- タイトル別名
-
- Some Studies on Metallurgical Behavior of Magnox Alloy, (II)
- Phenomena of cavitation and cracking during creep
- クリープ中におこるcavitationとcracking現象
抄録
Creep tests have been carried out on Magnox, Mg-1% Al and Mg-1% Zr alloys at several temperatures in the range from 300° to 500°C under several stresses in the range from 0.15 to 0.38kg/mm2. After the creep test specimens were cut out to investigate the phenomenon of cavitation in these alloys during creep test.<br>Average creep rates of Magnox alloys under the condition described above are the order of 10-310-1%/hr and Magnox A12 possesses higher creep strength than other Magnox alloys. Creep specimens show ductile fracture at the temperature of 400°C or above and brittle fracture at the temperature of 300°C or below. The surface of the specimen becomes rough by creep deformation.<br>Cavities are formed preferentially in grain boundaries normal to the stress axis at early stage of secondary creep mainly caused by grain boundary sliding. In the case of higher stress cavities and cracks are mainly created at triple points of grain boundaries. At constant temperature, for a given amount of strain the number of cavities increases with decreasing strain rate and for a given strain rate it increases with total amount of strain. Cavities are formed easily at the temperature range from 300° to 400°C and they are not formed at the temperature of 500°C and above.
収録刊行物
-
- 日本原子力学会誌
-
日本原子力学会誌 3 (10), 779-786, 1961
一般社団法人 日本原子力学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282681528662016
-
- NII論文ID
- 130003746959
-
- ISSN
- 21865256
- 00047120
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可