多軸鍛造を施した7075と7N01アルミニウム合金のミクロ組織と機械的性質

• 青葉 知弥

  豊橋技術科学　大学機械工学系

• 上野 宗太郎

  豊橋技術科学大学大学院　機械工学専攻　大学院生

• 小林 正和

  豊橋技術科学　大学機械工学系

• 三浦 博己

  豊橋技術科学　大学機械工学系

書誌事項

タイトル別名

• Microstructure and mechanical properties in multi-directionally forged 7075 and 7N01 aluminum alloy
• タジク タンゾウ オ ホドコシタ 7075 ト 7N01 アルミニウム ゴウキン ノ ミクロ ソシキ ト キカイテキ セイシツ

抄録

The microstructure and mechanical properties of 7075 and 7N01 alloys after multi-directional forging (MDFing) and subsequent aging were systematically investigated. The number density of the precipitates in the aged samples after MDFing were lower than that of the aged sample without MDFing. The aged 7075 and 7N01 alloys after MDFing showed the ultimate tensile strengths of 556 MPa and 428 MPa, respectively. The fatigue tests were conducted in air and 3.5% NaCl aqueous solution to investigate the effect of MDF on the fatigue properties of 7000 series alloys. As a result of fatigue test in air, the fatigue strength of the MDFed 7N01 alloy was slightly lower than that of non-MDFed one, but that of the 7075 alloy showed no difference before and after MDFing. Two alloys had no significant difference in fatigue crack growth rate in air and 3.5% NaCl aqueous solution.

収録刊行物

• 軽金属

  軽金属 68 (7), 339-345, 2018-07-30

  一般社団法人 軽金属学会

キーワード

• 7000 series alloy
• fatigue property
• precipitation
• severe plastic deformation
• multi-directional forging

詳細情報

• CRID: 1390845712994322304
• NII論文ID: 130007475254
• NII書誌ID: AN00069773
• DOI: 10.2464/jilm.68.339
• ISSN: 18808018
• ISSN: 04515994
• NDL書誌ID: 029109097
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I029109097
• Web Site: https://www.jstage.jst.go.jp/article/jilm/68/7/68_680702/_pdf
• 本文言語コード: ja
• データソース種別:
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