国産および米国産超強力鋼の確性試験

概要

論文の詳細を見る
In order to compare and confirm the various properties of the ultrahigh strength steels produced in Japan and the United States, the notch toughness in the base metals and the welded joints of five steels (three kinds of 18Ni maraging, HP 9-4-25 and PZ steels) were mainly examined. The comparison between 18Ni maraging steel and the steel of 9Ni-4Co series was also made. The results are summarized as follows : 1) The 18Ni maraging steels and the steels of 9Ni-4Co series made in the two countries are found to show similar properties. 2) The notch toughness of 18Ni maraging steel is appreciably superior to that of the steel of 9Ni-4Co series. 3) The decreases in the notch toughness of the weld metals for the 18Ni maraging steel and the heat affected zone for the steel of 9Ni-4Co series are considered to be troublesome.
社団法人日本鉄鋼協会の論文
1973-08-01