The Effect of Prestraining on the Ductility of Pure Chromium

• Yoshida Susumu

  National Research Institute for Metals, the Science and Technics Agency

• Ohba Yukio

  National Research Institute for Metals, the Science and Technics Agency

• Nagata Norio

  National Research Institute for Metals, the Science and Technics Agency

抄録

The effect of prestraining on the room-temperature ductility of pure chromium containing 0.004% nitrogen was studied. The ductility of chromium was very poor in the recrystallized condition, however, specimens which were prestrained from 0.75 to 3% at 400°C and 3 to 8% at 500°C by rolling became ductile and some of them showed an elongation of more than 40% in the tensile test. Furthermore, needle-like precipitates, presumably nitrides, were observed by an electron microscope on the specimens which were ductile after being properly prestrained.<BR>The author’s explanation offered for this effect is that the prestraining under specific conditions causes a decrease of dissolved nitrogen atoms by increasing the precipitation of nitrides.

収録刊行物

• Transactions of the Japan Institute of Metals

  Transactions of the Japan Institute of Metals 1 (1), 49-53, 1960

  社団法人 日本金属学会

キーワード

• General Engineering

詳細情報

• CRID: 1390282680093725312
• NII論文ID: 130003484917
• DOI: 10.2320/matertrans1960.1.49
• ISSN: 24324701
• ISSN: 00214434
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1960/1/1/1_1_49/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可