超軽量Ｍｇ‐Ｌｉ‐Ａｌ合金の熱処理特性および機械的性質に及ぼす添加元素の影響

• 八太 秀周

  長岡技術科学大学大学院

• CHANDRAN RAMESH

  Graduate School, Nagaoka University of Technology

• 鎌士 重晴

  長岡技術科学大学

• 小島 陽

  長岡技術科学大学

書誌事項

タイトル別名

• Effect of additional elements on heat treatment characteristics and mechanical properties of superlight Mg-Li-Al alloys.
• 超軽量Mg-Li-Al合金の熱処理特性および機械的性質に及ぼす添加元素の影響
• チョウ ケイリョウ Mg Li Al ゴウキン ノ ネツ ショリ トクセイ オ

抄録

In this study, 0.5 mass%Ca, Si, Zr or 1 mass%Y as a fourth alloying element was added to Mg–20 mass%Li–10 mass%Al alloy in order to restrict recrystallization and growth of recrystallized grains. Effects of the alloying elements on heat treatment characteristics and tensile properties of the warm-rolled specimens were investigated. Quenching of the specimens after isothermal holding at the temperature more than 200°C for 1 h results in increasing hardness and strength and in decreasing elongation, because aluminum is resolved into the β phase. Recrystallized grains of the quaternary alloy containing 0.5 mass%Si become fine, but resulting in no increase of elongation. An addition of 0.5 mass%Ca makes strength high, whereas no sign of the improvement of elongation is recognized. Zr does not show any large difference in the microstructure and tensile strength of the ternary alloys. As a result, there is no significant increase of ductility for the examined alloys although the recrystallized grain size is reduced as compared with the ternary alloys.

収録刊行物

• 軽金属

  軽金属 47 (4), 202-207, 1997

  一般社団法人 軽金属学会

キーワード

• Mg–Li alloy
• quenching hardenability
• additional element
• tensile property
• tensile fracture

詳細情報

• CRID: 1390001206336069760
• NII論文ID: 10003795246
• NII論文ID: 10004010487
• NII書誌ID: AN00069773
• DOI: 10.2464/jilm.47.202
• COI: 1:CAS:528:DyaK2sXjsVWis74%3D
• ISSN: 18808018
• ISSN: 04515994
• NDL書誌ID: 4184916
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4184916
• 本文言語コード: ja
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可