清浄化した3.5 GPa級マルエーシング鋼の疲れ強さ

DOI Web Site Web Site 被引用文献1件

書誌事項

タイトル別名
  • Fatigue Strength of Cleaned 3.5 GPa Grade Maraging Steels
  • 清浄化した3.5GPa級マルエージング鋼の疲れ強さ
  • セイジョウカシタ 3 5GPaキュウ マルエージング コウ ノ ツカレツヨサ

この論文をさがす

抄録

In order to improve the fatigue strength of a 3.5 GPa grade maraging steel (8%Ni-20%Co-14%Mo-Fe), the alloys were melted carefully in CaO-lining crucibles with basic flux (CaO:CaF2:Al2O3=6:3:1) and were deoxidized with Mn, Si, Al, Ti and Ca individually or compositely. These alloys subjected to thermomechanical treatments were fatigue-tested with a one-side tension machine, and inclusions in these alloys were analysed metallographically. Results obtained are as follows: (1) As compared with a conventionally vacuum-melted alloy in an Al2O3 crucible, the alloys melted in basic atmosphere as mentioned above showed superior fatigue strength, and the size, number and mass pct. of inclusions were decreased distinctly. (2) The endurance limit of the alloys deoxidized with Al and Ti compositely was 2.3 GPa. This value may be almost the limiting value expected for 3.5 GPa grade steels. (3) The workability of the alloys deoxidized with Al and Ca compositely was very superior. The tensile strength of this drawn and aged wire 0.2 mm in diameter was 4.3 GPa.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 46 (11), 1068-1073, 1982

    公益社団法人 日本金属学会

被引用文献 (1)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ