書誌事項
- タイトル別名
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- Behavior of σ Phase Powders in Fe-Cr-Ni Sintered Alloy
- Fe-Cr-Niケイジョウケツゴウキン ニ オケル シグマソウ フンマツ ノ キョドウ ニ ツイテ
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説明
The purpose of this paper is to discuss the metallurgical characteristics of Fe-Cr and Fe-Cr-Ni a phase powders, containing 42.5%Cr and 44.5%Cr-17.5% Ni respectively, as raw materials for powder metallurgy. Alloying phenomena of the a phase powder were observed in the process of formation of Fe-25%Cr-28%Ni austenitic alloy by means of saturation magnetization, X ray diffraction method, and optical microscopy.<BR>The results are summarized as follows:<BR>(1) Fe-Cr a phase powders were transformed into a phase within about 5 minutes at 1000°C, and these powders behaved as Fe-Cr a phase alloy powders above 1000°C.<BR>(2) Fe-Cr-Ni p phase powders were decomposed into y phase in which small particles of the a phase were dispersed.<BR>During heating over 1000°C, these a phase particles grew into larger particles and then dissolved into the γ phase.<BR>(3) Cr had been diffused from the a phase into matrix powder before it was transformed into the a or (a+γ) phase.<BR>(4) Larger shrinkage was obtained when the compact contained Fe-Cr a phase powders than those of Fe-Cr-Ni.
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 20 (8), 261-267, 1974
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390282681284613504
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- NII論文ID
- 130000816644
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 7641971
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