含 Cu オーステナイトステンレス鋼のプレス成形性について(<特集>ステンレス鋼)

概要

論文の詳細を見る
The effects of Cr, Ni, and C contents on the press formability and mechanical properties of austenitic stainless steels containing Cu were investigated. The main results obtained are as follows. (1) The addition of Cu to austenitic stainless steels results in low work hardening, good drawability, and good corrosion resistance to acid environments. (2) The press formability of 13∿18% Cr-6∿9% Ni-2% Cu steels is strongly affected by the degree of austenite stability, and the optimum composition for the deep drawability and that for the stretch formability do not coincide with each other. The more unstable the austenite when formed, the better the deep drawability in the range of containing no martensite as annealed. The stretch formability, however, becomes the maximum when the austenite is a little unstable. (3) Delayed cracking of deep drawn cups does not occur at C content up to about 0.03%. (4) 16%Cr-7%Ni-2%Cu (low-C) steel has excellent press formability.
社団法人日本鉄鋼協会の論文
1977-04-01