スモールパンチ試験法による薄肉球状黒鉛鋳鉄のじん性に及ぼす黒鉛粒数の影響

• 大田 彩子

  室蘭工業大学大学院

• 桃野 正

  室蘭工業大学

書誌事項

タイトル別名

• Effects of Graphite Nodule Count on Fracture Toughness of Thin Wall Ductile Cast Iron by Small Punch Testing
• スモール パンチ シケンホウ ニ ヨル ウスニク 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 コクエンリュウスウ ノ エイキョウ

抄録

  Thin wall ductile cast iron has many graphite nodules about 1000 counts/mm² or more. Fracture toughness of cast iron is affected by graphite nodule counts. But it cannot be evaluated by usual testing because of its small thickness. The small punch test is a method which allows mechanical properties to be determined by small thickness specimens. Evaluation of fracture toughness was carried out using this test. The matrix of specimens was changed to 0 to 80% pearlite by heat treatment. Thin wall ductile cast iron with 50% pearlite or less showed lower fracture toughness than thick wall ductile cast iron, while the fracture toughness was the same for both cases having 50% pearlite or more. As a result of investigating the effects of nodule counts on fracture toughness in ductile cast iron with ferrite matrix, the fracture toughness was found to decrease with increasing nodule count until 600 counts/mm², but remained nearly constant over 600 counts/mm².

収録刊行物

• 鋳造工学

  鋳造工学 80 (4), 225-229, 2008

  公益社団法人 日本鋳造工学会

キーワード

• cast iron
• thin wall castings
• fracture

詳細情報

• CRID: 1390282681482940672
• NII論文ID: 10021162022
• NII書誌ID: AN10514770
• DOI: 10.11279/jfes.80.225
• COI: 1:CAS:528:DC%2BD1cXms1SqtLk%3D
• ISSN: 21855374
• ISSN: 13420429
• NDL書誌ID: 9479928
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9479928
• 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