オーステンパ球状黒鉛鋳鉄の靭性に及ぼすサブゼロ処理の効果

• 塚原 茂男

  関東学院大学工学部機械工学科

• 山田 銑ー

  同　工博

書誌事項

タイトル別名

• Effects of Subzero Treatment on Toughness of Austempered Ductile Cast Iron.
• オーステンパ キュウジョウ コクエン チュウテツ ノ ジンセイ ニ オヨボス

抄録

  The tensile strength and the toughness of austempered ductile cast iron with or without subzero treatment and quench tempered ductile cast iron were investigated. The following results were obtained : (1) The quantity of retained austenite of the cast iron austempered at 623∼773 K are 30∼40 %, and are decreased to 15∼25 % by subzero treatment after austempering. (2) The elongation and Charpy impact values of the cast iron austempered at 573∼773 K without subzero treatment after austempering are higher than that of the other heat treated specimens with the same tensile strength. (3) The retained austenite decreases after the tensile test remarkably. On the other hand, the change of the quantity of retained austenite is little after the bending and the impact test. (4) In the subzero treated cast iron after austempering, the retained austenite is divided into small sections by deformation induced martensitic transformation.

収録刊行物

• 鋳造工学

  鋳造工学 70 (4), 241-246, 1998

  公益社団法人 日本鋳造工学会

キーワード

• austempered ductile cast iron
• mechanical properties
• subzero treatment
• retained austenite
• deformation induced transformation

詳細情報

• CRID: 1390001206508397952
• NII論文ID: 10002553676
• NII書誌ID: AN10514770
• DOI: 10.11279/jfes.70.241
• COI: 1:CAS:528:DyaK1cXjs1Glurc%3D
• ISSN: 21855374
• ISSN: 13420429
• NDL書誌ID: 4459426
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4459426
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可