書誌事項
- タイトル別名
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- On the Characteristics of Strength at High Temperature of the Iron Base Heat-Resisting Alloys of Precipitation Type. (Study on the Heat-Resisting Alloy (3))
- テツキ セキシュツガタ タイネツ コウ ノ コウオン キョウド トクセイ ニ ツイテ
- On the Characteristics of Strength at High Temperature of Iron-Base Heat-Resisting Alloys of Precipitation Type. (Study on the Heat-Resisting Alloy (4))
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抄録
Following the rapid development of many superior nickel and cobalt-base alloys strengthened by the presence of the dispersions of intermetallic compounds within matrix, iron-base alloys of such types., e.g., A-286 and W-545, have been developed recently. The purpose of this investigation is to contribute to the development of these iron-base alloys, by giving data on the hot-strength potentialities and the effects of melting processes on the high temperature properties of modified alloys containing a small amount of Mo, W, V, Cb, Ti, Al and B in iron-base Cr 16%, Ni 20∼25% and Co 0∼10% alloys. Both air- and vacuum-melted forged bars were used for solution annealing, age hardening, short-time tensile tests, high-temperature creep-rupture tests, electron-microscopic and X-ray examinations. Specimens containing Ti and Al have conspicuous age-hardenable characteristics. These specimens are much the same in solution-annealing and age-hardening characteristics and short-time tensile strength, but the ductility after tensile test in the vacuum-melted specimens is superior to that in the air-melted. The creep-rupture properties of vacuum-melted alloys investigated up to 732°C were better than those of commercial alloys such as A-286, LCN-155 or S-816 and were comparable to those of Nimonic 80 A. By the X-ray diffraction data on the electrolytic extracts from these specimens after creep-rupture tests, MC, M23C6, σ phase, Lave’s phase, γ′ phase, boride and η phase have been identified. It might be suggested that the remarkable age-hardening and the high-rupture strength properties of these alloys are principally caused by a precipitation of γ′ type Ni3(Al,Ti).
収録刊行物
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- 日本金属学会誌
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日本金属学会誌 25 (5), 332-336, 1961
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001206482916992
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- NII論文ID
- 40018257928
- 130007334764
- 130007335168
- 40018257813
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- NII書誌ID
- AN00187860
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- ISSN
- 18806880
- 24337501
- 00214876
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- データソース種別
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- JaLC
- NDL
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