Ni-Cr合金の耐熱強度について

DOI Web Site Web Site

書誌事項

タイトル別名
  • Study on the Ni-Cr Binary Alloys (1st Report). On Their High-Temperature Strength
  • Ni-Cr ゴウキン ノ タイネツ キョウド ニ ツイテ

この論文をさがす

抄録

This investigation was conducted to evaluate the high-temperature strength of Ni-Cr binary alloys ranging from 20%Cr to 40%Cr in homogenized state after casting or rolling of about 30% at 750°C, by measuring the high-temperature hardness, testing the bending-cre p behavior, etc. It was found that rolled specimens are hard r in high-temperature-hardness and strong r in b n-ding-cr p-tests than sp cim ns without rolling. The deflection in bending-creep-tests at 700°C of 35%Cr-Ni alloy was found to be minimum in specimens homogenized without rolling, and that of 25%Cr-Ni alloy was minimum in roll d and homog nized specimens. With heating of specimens ranging from 30%Cr to 40%Cr at 700°C for 100 hrs, troostic decomposition was found to take place at the grain boundaries and spread into the grains. This was conspicuous in rolled 40%Cr alloy. One of the causes for weakness in bending-creep-strength of the rolled 40%Cr alloy will be due to the finer grains and the more decomposition. 20%Cr-Ni alloys were found to show Widmanstätten structure and subgrains after 100 hr-heat at 700°C. This phenomenon might have more or less relation with the so-called anomaly of the γ solid solution at low temperature.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 22 (12), 648-651, 1958

    公益社団法人 日本金属学会

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