高速度工具鋼ＳＫＨ５１の超長寿命疲労挙動と破壊形態

• 魯 連涛

• 塩澤 和章

• 森井 祐一

書誌事項

タイトル別名

• Gigacycle Fatigue Behavior and Fracture Morphology of High Speed Tool Steel, JIS SKH 51.
• コウソクド コウグ コウ SKH 51 ノ チョウチョウジュミョウ ヒロウ キョドウ ト ハカイ ケイタイ

抄録

Gigacycle fatigue characteristics of high speed tool steel, JIS SKH 51, was investigated under cantilever-type rotary bending fatigue tests in an open environment at room temperature. As a result of fatigue tests, S-N curve was clearly classified into two types of fracture modes by the different crack origins. One fracture mode occurred at the surface inclusion in the region of short fatigue life and high stress amplitude level. The other was at the subsurface inclusion in the region of long fatigue life and low stress amplitude level. The transition of crack initiation site from surface to subsurface appeared at about 2×10⁴ cycles and the stress amplitude for the transition was affected by the tempering temperature of the specimen. On the other hand, difference on fatigue life for internal fracture mode between specimens treated by different tempering temperature did not observed. Fatigue fracture mechanisms were discussed through the detailed observation of subsurface crack initiation site.

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 69 (679), 662-670, 2003

  一般社団法人 日本機械学会

キーワード

• Gigacycle Fatigue
• S-N Curve
• Surface Fracture Mode
• Internal Fracture Mode
• High Speed Tool Steel

詳細情報

• CRID: 1390001204446424448
• NII論文ID: 110002370357
• NII書誌ID: AN0018742X
• DOI: 10.1299/kikaia.69.662
• COI: 1:CAS:528:DC%2BD3sXjvVSns70%3D
• ISSN: 18848338
• ISSN: 03875008
• ISSN: http://id.crossref.org/issn/03875008
• HANDLE: 10110/1682
• NDL書誌ID: 6516189
• Web Site: https://toyama.repo.nii.ac.jp/records/3123
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6516189
• Web Site: http://www.jstage.jst.go.jp/article/kikaia1979/69/679/69_679_662/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可