書誌事項
- タイトル別名
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- Grain Refinement by Severe Deformation Processing and<br>Superplastic Characterization of AZ31 Magnesium Alloy Tubes
- キョウヒズミ ヘンケイ ニ ヨル AZ31 マグネシウム ゴウキン ソケイ カンザイ ノ ケッショウリュウ ビサイカ ト ソノ チョウソセイ トクセイ ヒョウカ
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説明
Grain refinement processing by severe deformation, combining Equal-Channel Angular Extrusion (ECAE) processing and conventional tube extrusion, was applied to AZ31 magnesium alloy. By a combination of ECAE processing and tube extrusion, a fabricated tube, with outer and inner diameters of 2 mm and 1 mm, respectively, had fine, homogeneous, and equiaxed grain structure with an average grain size of 1.5μm. Tensile test results indicate that the fine-grained tubes exhibited a superplasticity potential m value = 0.55. The maximum elongation (688%) was obtained at a temperature of 673K and at a strain rate of 1.0×10-4s-1. In addition, compared with tubes only processed by extrusion, ECAE-extruded tubes showed remarkable ductility with an elongation of 245% at a high strain rate of 5.2×10-2s-1. From these results, the effectiveness of new grain refinement processing for fabricating fine-grained narrow tubes was demonstrated experimentally.
収録刊行物
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- 塑性と加工
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塑性と加工 48 (556), 412-416, 2007
一般社団法人 日本塑性加工学会
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詳細情報 詳細情報について
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- CRID
- 1390001206500244224
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- NII論文ID
- 130004488111
- 10018757220
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- NII書誌ID
- AN00135062
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- COI
- 1:CAS:528:DC%2BD2sXntVClu7c%3D
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- ISSN
- 18820166
- 00381586
- http://id.crossref.org/issn/00381586
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- NDL書誌ID
- 8830302
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDLサーチ
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可