書誌事項
- タイトル別名
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- α′→γ Reverse Transformation in an 18%Ni Maraging Steel
- 18%Niマルエージング鋼におけるα′-γ逆変態
- 18パーセント Ni マルエージング コウ ニ オケル アルファ ガンマ ギャ
- α′→γ Reverse Transformation in an 18%Ni Maraging Steel
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Mechanism of α′→γ reverse transformation has been examined by means of dilatometric measurements, X-ray analysis and structural observations in an 18% Ni maraging steel.<BR>The mechanism is changed in the range of heating rate between 100 and 500°C/min. At the lower heating rates, the stabilization (decrcase in Ms and increase in the content of retained γ) and the unstabilization (increase in Ms) of reverted γ are observed, and this phenomenon is concerned with the partitioning of the solute atoms in α′ during heating. Under these conditions, surface relieves are observed during the reverse transformation and γ grain boundaries inherit the former features completely when heated to the temperature range from Af to γ recrystallization temperature. From the above results, the mechanism of α′→γ reverse transformation at lower heating rates is inferred as follows; first, α′ is partitioned to solute rich and solute poor regions by short range diffusion, and in the subsequent α′→γ transformation, martensitic character participates partially.<BR>On the other hand, at the higher heating rates, either stabilization or unstabilization of the reverted γ is not observed, and accordingly it is considered that α′ transforms to γ martensitically without the diffusion process.
収録刊行物
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- 鉄と鋼
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鉄と鋼 64 (5), 595-604, 1978
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390001205151591040
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- NII論文ID
- 110001468672
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- NII書誌ID
- AN00151251
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- ISSN
- 18832954
- 00211575
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- NDL書誌ID
- 1939563
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- データソース種別
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- JaLC
- NDL
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