| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2015-03-26 |
| タイトル |
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タイトル |
鍛錬用アルミニウム合金強化に關する二、三の研究 |
| 言語 |
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言語 |
jpn |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
| その他のタイトル（英） |
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その他のタイトル |
The Various Methods on the Production of Strong-Wrought Aluminium-Alloys. |
| 著者 |
石田, 四郎
本道, 方
小林, 哲男
前田, 岸
ISIDA, Siro
HONDO, Tadasi
KOBAYASI, Tetuo
MAEDA, Kisi
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| 出版者 |
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出版者 |
東京帝國大學航空研究所 |
| 出版者（英） |
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出版者 |
Aeronautical Research Institute, Tokyo Imperial University |
| 書誌情報 |
東京帝國大學航空研究所報告
en : Report of Aeronautical Research Institute, Tokyo Imperial University
巻 19,
号 254,
p. 139-166,
発行日 1943-06
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| 抄録（英） |
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内容記述タイプ |
Other |
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内容記述 |
The various methods on the production of strong-wrought Al-alloys were investigated. The results obtained are as follows: 1. Since the alloys of Al-MgZn_2 series are susceptible to season cracking while in Al-Cu-Mg alloys, there is scarcely any danger of it under ordinary conditions, our investigations were carried out with the object of obtaining an alloy of the latter series which would give an ultimate strength of about 55kg/mm^2 and an elognation of 13%. For this purpose, a number of Super-Duralumin base alloys (4% Cu, 1.5% Mg, 0.5% Mn) were prepared with 1～6% Zn and were subjected to various quenching and tempering treatments. As a result it was found that the addition of 6% Zn was necessary for Al-Cu-Mg alloys to attain the desired mechanical properties. In other words, small addition of Zinc in Al-Cu-Mg Alloys was found unable to produce a high-tensile alloy. 2. The Al-Cu-Mg alloys (4% Cu, 1.5% Mg, 0.5% Mn) were quenched at 490℃ and were followed immediately by the application of a small amount of cold working. They were then subjected to low temperature annealing at 100℃ and were slightly cold-worked again which were succeeded by the second intermediate low temperature annealing at 100℃. Repeating such operations, the sheets were finished which were finally annealed at temperatures ranging from 175～200℃. The resulting material showed about 52kg/mm^2 in tensile strength and 11% in elognation. The foregoing methods have frequently been adopted in our laboratory for the production of wires and it has been made definite that the process may also be applicable to the making of sheet materials. 3. In the case of Al-MgZn_2-Cu alloy such as "SSD" of our laboratory containing 1.2% Mn, the higher the degree of cold working prior to quenching, the more excellent are the mechanical properties obtained after the quenching and tempering treatments. The authors investigated whether this fact may or may not be applied to the Al-Cu-Mg alloys containing less Mn. As a result it was verified that some increase in both proof stress and tensile strength might be obtained on subsequent temper-hardening, the improvement being however not so marked as Al-MgZn_2-Cu alloys containing much Mn. |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00387631 |
| 資料番号 |
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内容記述タイプ |
Other |
|
内容記述 |
資料番号: SA4146467000 |
SA4146467.pdf (1.0 MB)
