６０８２系アルミニウム合金のティグアークスポット溶接部の液化割れに及ぼす諸因子の影響

• 加藤 光昭

  九州工業大学工学部物質工学科

• 西尾 一政

  九州工業大学大学院生命工学研究科

• 山口 富子

  九州工業大学工学部物質工学科

• 岡野 洋文

  九州工業大学大学院

書誌事項

タイトル別名

• Influence of several factors on liquation cracking in 6082 aluminum alloy GTA spot welds.

抄録

Influences of chemical compositions of base metal, temperature difference ΔT between liquidus and solidus, and arc time on the susceptibility of liquation cracking were studied using the Varestraint test on 6082 aluminum alloy which was GTA spot welded. A commercial 6082 alloy and seven kinds of experimental 6082 alloy whose magnesium, silicon and manganese contents were changed were used. The susceptibility of liquation cracking was evaluated from the maximum crack length observed in heat affected zone after the Varestraint test. Liquation cracking was observed along grain boudaries on which low melting point compounds (mainly Mg₂Si) were melted. The maximum crack length increased with arc time and ΔT. The addition of Si and Mg which increased ΔT promoted the liquation cracking, whereas the Mn addition suppressed the cracking by grain refining.

収録刊行物

• 軽金属

  軽金属 52 (2), 76-81, 2002

  一般社団法人 軽金属学会

キーワード

• 6082 aluminum alloy
• liquation cracking
• GTA spot welds
• Varestraint test

詳細情報

• CRID: 1390001206336449664
• NII論文ID: 130004481574
• DOI: 10.2464/jilm.52.76
• COI: 1:CAS:528:DC%2BD38XislCjsbg%3D
• ISSN: 18808018
• ISSN: 04515994
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可