高配合率Cr-Cu複合材の引張特性における温度依存性

• 寺尾 星明

  JFE精密株式会社

• 松本 佳久

  大分工業高等専門学校，機械工学科

• 金武 直幸

  名古屋大学，大学院工学研究科

書誌事項

タイトル別名

• Tensile Characteristics of High-Cr-Fraction Cr-Cu Composite at Various Temperatures
• コウハイゴウリツ Cr-Cu フクゴウザイ ノ ヒッパリ トクセイ ニ オケル オンド イソンセイ

抄録

In order to gain the fundamental knowledge of plastic deformability in a Cr-Cu composite material containing a high fraction of Cr particles, tensile tests of 50mass%Cr-Cu composites were performed at 299K to 473K. Although single-phase Cr generally shows brittle fracture at temperatures lower than approximately 350K, the Cr-Cu composite shows ductile fracture at all tested temperatures. The tensile strength and fracture elongation decreased with increasing testing temperature. These tensile properties of the high-Cr-fraction Cr-Cu composite originate from the properties of a matrix material comprising a Cu alloy with a small amount of dissolved and precipitated Cr. However, the reduction in area was increased with increasing testing temperature. The deformation characteristics of the Cr-Cu composites were considered in terms of the re-arrangement, elongation, and rotation of Cr particles in a ductile Cu matrix. In addition, the ductile-brittle transition behavior of Cr particles would affect the tensile property of Cr-Cu composite at 353K to 373K, which is the range of the ductile-brittle transition temperature (DBTT).

収録刊行物

• 塑性と加工

  塑性と加工 56 (648), 34-39, 2015

  一般社団法人 日本塑性加工学会

キーワード

• Cr-Cu composite
• heat sink
• tensile property
• temperature dependence
• workability
• ductile-brittle transition temperature (DBTT).

詳細情報

• CRID: 1390282681476344192
• NII論文ID: 130004787568
• NII書誌ID: AN00135062
• DOI: 10.9773/sosei.56.34
• ISSN: 18820166
• ISSN: 00381586
• NDL書誌ID: 026051164
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026051164
• Web Site: https://www.jstage.jst.go.jp/article/sosei/56/648/56_34/_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
• 抄録ライセンスフラグ: 使用不可