B-51 超微細複相組織鋼の設計とその力学特性

概要

論文の詳細を見る
This paper introduces a materials design concept and recent accomplishments for ultrafine grain complex structure steels which show a good balance among strength, toughness, and ductility. Ferrite matrix steel with grain size of 1 micron was performed by thermomechanical processing, and further finely dispersed carbides were introduced in the microstructure through the same processing. Square bars of 12mm×12mm section with designed microstructure were fabricated using a small-scale commercial rolling plant. The combination of yield strength of 600MPa and uniform elongation of 8% was for the first time performed for ferrite matrix steel, and an excellent DBTT lower than 100K was realized without nickel addition.
一般社団法人日本機械学会の論文
2000-03-29