環境水素の影響を受けた6061および7075アルミニウム合金の衝撃引張特性

• 山田 浩之

  大阪大学大学院基礎工学研究科機能創成専攻

• 堀川 敬太郎

  大阪大学大学院基礎工学研究科機能創成専攻

• 谷垣 健一

  大阪大学大学院基礎工学研究科機能創成専攻

• 小林 秀敏

  大阪大学大学院基礎工学研究科機能創成専攻

書誌事項

タイトル別名

• Impact Tensile Properties of 6061 and 7075 Aluminum Alloys Affected by Environmental Hydrogen
• カンキョウ スイソ ノ エイキョウ オ ウケタ 6061 オヨビ 7075 アルミニウム ゴウキン ノ ショウゲキ ヒッパリ トクセイ

抄録

Impact tensile properties of T6-aged 6061 and 7075 aluminum alloys affected by atmospheric hydrogen were investigated. In order to introduce hydrogen from the atmosphere, the alloys were pre-deformed by a slow strain rate testing (SSRT) in a humid air atmosphere with a relative humidity of 90%. For the pre-deformed specimens, the impact tensile tests were performed using split Hopkinson pressure bar (SHPB) method at an average strain rate of 5.0×10^2s^<-1>. Hydrogen concentration after the pre-deformation by SSRT was measured with a thermal desorption analysis. As a set of the experiments, it was shown that the ductility in the impact test decreased when the T6-aged 7075 alloys were hydrogen charged. The hydrogen embrittlement sensitivity of the T6-aged 6061 alloys was lower than that of the T6-aged 7075 alloys. The decrease of the ductility due to hydrogen charging of the T6-aged 7075 alloys was closely related to the increase in the ratio of the intergranular fracture near the specimen surface.

収録刊行物

• 日本機械学会論文集Ａ編

  日本機械学会論文集Ａ編 75 (759), 1630-1638, 2009

  一般社団法人 日本機械学会

キーワード

• Aluminum Alloy
• Hydrogen
• Strain Rate
• Impact
• Split Hopkinson Pressure Bar

詳細情報

• CRID: 1390001204477944192
• NII論文ID: 110007482716
• NII書誌ID: AN0018742X
• DOI: 10.1299/kikaia.75.1630
• ISSN: 18848338
• ISSN: 03875008
• ISSN: http://id.crossref.org/issn/03875008
• NDL書誌ID: 10505405
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10505405
• Web Site: https://www.jstage.jst.go.jp/article/kikaia1979/75/759/75_KJ00005879258/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可