書誌事項
- タイトル別名
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- Investigation of Strengthening Mechanism of Oxide-dispersed Magnesium Composite Sintered Material at Elevated Temperature
- サンカブツ ブンサン マグネシウム フクゴウ ショウケツザイ ノ コウオン デ ノ キョウカ キコウ カイメイ
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抄録
<p>MgO particles dispersed AZ61B composite alloys were fabricated via equal channel angular bulk mechanical alloying (ECABMA) and following sintering and hot extrusion processes. α-Mg grain refinement was drastically occurred with increase in the MgO additive content of the composites due to dynamic recrystallization during hot extrusion. Regarding the micro hardness of the matrix, it increased with increase in MgO contents because of the synergy of the grain refinement and MgO hard particles dispersion strengthening effects. However, such a strengthening behavior was gradually decreased in the elevated temperature at 473 K. When comparing the strengthening effect by the grain refinement and MgO particles dispersion by using Hall-Petch coefficient at ambient and elevated temperatures, it was clarified that the latter effect was more dominant in the MgO/AZ61B composite alloys.</p>
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 64 (9), 479-485, 2017
一般社団法人 粉体粉末冶金協会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282681288247296
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- NII論文ID
- 130006106458
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 028546440
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可