書誌事項
- タイトル別名
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- Superplastic Behavior in Mg-Al Alloy, AZ91D Grain Refined by Isothermal-rolling
- コウオン アツエン ニ ヨリ ビサイカ サレタ Mg Al ゴウキン AZ91D イタザイ ノ チョウソセイ キョドウ
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説明
Thin Mg-Al alloy, AZ91D sheets annealed around the temperature between 0% and 100% recrystallization have been prepared and tensed at high temperatures and with several strain-rates. Both the total elongation and strain-rate sensitivity m have been obtained and discussed.<BR>The values of total elongation have exceeded over 110% at all testing temperatures and with all strain-rates except high strain-rate at testing temperature of 573K, and the maximum total elongation of 270% has been obtained. The m values have indicated 0.5 in range of 1.0×10-4s1 to 2.5×10-4s-1 and maintained about 0.3 up to the neighborhood of 1.0 × 10-2s-1.<BR>The activation energy required for superplastic deformation has been calculated to be about 70 kJ·mol-1, which is almost same of the activation energy for self-diffusional grain boundary coefficient in Mg. Therefore, the superplastic deformation of AZ91D annealed around the temperature between 0% and 100% recrystallization has been accommodated by grain boundary diffusion.
収録刊行物
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- 鉄と鋼
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鉄と鋼 90 (1), 21-26, 2004
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
- 1390001205184019456
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- NII論文ID
- 110001457666
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- NII書誌ID
- AN00151251
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- ISSN
- 18832954
- 00211575
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- NDL書誌ID
- 6818216
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可