TRIP型ベイニティックフェライト鋼のねじり疲労強度に及ぼす微粒子ピーニングの影響

• 水野 悠太

  信州大学大学院

• 北條 智彦

  岩手大学工学部　機械システム工学科

• 杉本 公一

  信州大学工学部　機械システム工学科

書誌事項

タイトル別名

• Effects of Fine Particle Peening on Torsional Fatigue Strength of a TRIP-aided Bainitic Ferrite Steel
• TRIPガタ ベイニティックフェライトコウ ノ ネジリ ヒロウ キョウド ニ オヨボス ビリュウシ ピーニング ノ エイキョウ

抄録

The effects of fine particle peening (FPP) on the torsional fatigue properties were investigated in the case of a transformation-induced plasticity (TRIP)-aided bainitic ferrite (TBF) steel that has potential for use in precision gears. FPP resulted in a significant increase in the torsional fatigue limit of the TBF steel, compared with that of a quenched and tempered SNCM420 steel. An increase in the torsional fatigue limit was larger than that in the rotating bending fatigue limit. In addition, the crack growth rate and the threshold stress intensity range of this steel were lower and higher, respectively, than those of its SNCM420 counterpart. These differences resulted from the TBF steel having a higher (1) Vickers hardness, (2) compressive residual stress, and (3) volume fraction of untransformed retained austenite in the surface hardened layer, which suppressed crack initiation and extension.

収録刊行物

• 材料

  材料 64 (11), 853-858, 2015

  公益社団法人 日本材料学会

キーワード

• Torsion fatigue strength
• Hardness
• Residual stress
• Fine particle peening
• TRIP-aided bainitic ferrite steel
• retained austenite
• Strain-induced transformation

詳細情報

• CRID: 1390001205445076096
• NII論文ID: 130005109746
• NII書誌ID: AN00096175
• DOI: 10.2472/jsms.64.853
• ISSN: 18807488
• ISSN: 05145163
• NDL書誌ID: 026945865
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026945865
• Web Site: https://www.jstage.jst.go.jp/article/jsms/64/11/64_853/_pdf
• 本文言語コード: ja
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可