マグノックス合金の冶金学的挙動に関する研究, (I)
書誌事項
- タイトル別名
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- Some Studies on Metallurgical Behavior of Magnox Alloy, (I)
- Grain growth and mechanical properties
- 結晶成長と機械的性質
抄録
Changes in crystal structure of three kinds of extruded Magnox (Magnox E, C and A 12) and Mg-1%Al alloys on heat treatment and tensile properties at room and elevated temperatures were investigated.<br>These alloys recrystallize about at 350°C and crystal grains of these alloys grow rapidly into heterogeneous coarse grains as increasing in temperature from 350°C. The growth rate of Magnox A12 grains is the most rapid and that of Be free Mg-1%Al alloy is the latest. Decrease in hardness and grain growth of these alloys except Magnox A12 have done in the first few hours at the temperature range from 300° to 450°C. Grains of Magnox A12 go on growing heterogeneously during at least 100hr. For example, grain size of 0.02mm at room temperature becomes 0.6mm after heating at 400°C for 62hr.<br>The results of the tensile test of extruded Magnox alloys at room temperature show 2224kg/mm2 in U. T. S., 1215% in elongation, and brittle fracture. Strain age-hardening phenomenon is found in Magnox A12 and C. U. T. S. and elongation of these alloys annealed at 350° and 400°C for 100hr are smaller than those of as extruded condition. The results of the tensile test of extruded Magnox alloys at 350°C under the strain rate of 142.5622.5%/hr reveal 23kg/mm2 in U. T. S., 60100% in elongation and the one is only a few affected by the strain rate, the other is little. These alloys show ductile fracture at 350°C without phenomenon of cavitation under the strain rate described above.
収録刊行物
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- 日本原子力学会誌
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日本原子力学会誌 3 (8), 623-633, 1961
一般社団法人 日本原子力学会
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詳細情報 詳細情報について
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- CRID
- 1390001206552259712
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- NII論文ID
- 130003909813
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- ISSN
- 21865256
- 00047120
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可