• 検索結果がありません。

焼付硬化性鋼板の耐デント性改善効果と硬化挙動

N/A
N/A
Protected

Academic year: 2021

シェア "焼付硬化性鋼板の耐デント性改善効果と硬化挙動"

Copied!
6
0
0

読み込み中.... (全文を見る)

全文

(1)

川崎製鉄技報 KAWASAKI STEEL GIHO

Vol.19 (1987) No.2

焼付硬化性鋼板の耐デント性改善効果と硬化挙動

Age-hardening Behavior and Dent Resistance of a Bake-hardenable and Extra Deep-drawable Steel Sheet

黒沢 光正(Mitsumasa Kurosawa) 佐藤 進(Susumu Satoh) 小原 隆史(Takashi Obara) 角山 浩三(Kozo Tsunoyama)

要旨 : 超深絞り性を有する焼付硬化性鋼板のプレス後の時効硬化挙動を,モデルプレス品におけ る耐デント性の測定および引張試験における強度変化測定により検討した。その結果,以下 のことが確認された。(1)引張試験で得られる BH 量はプレス成形品における耐デント性改 善効果とよい相関を示す。(2)焼付温度が低くなっても十分な耐デント性改善効果が得られ る。(3)いったん加工歪が加わると時効硬化が急速に進む。その硬化速度は歪量および固溶 C 量が増すほど大きくなる。 Synopsis :

Age hardening behavior of deep-drawable and bake-hardenable steel sheet was examined by measuring dent resistance and strength change of a model panel in a tensile test. Obtained results are as follows: (1) Bake hardenability in a tensile test was in good agreement with the dent resistance of a pressed part, (2) sufficient hardening effect was obtained even at a lower temperature, (3) once the steel sheet was deformed, age hardening started. Hardening was accelerated with increasing strain and the increased amount of solute carbon.

(c)JFE Steel Corporation, 2003

本文は次のページから閲覧できます。

要約版

(2)
(3)
(4)
(5)
(6)

参照

関連したドキュメント

7 Photomicrograph in Case 5 upper showing the accumulation of many fibroblasts in the superficial layer of the fibrinous clot adhering to the subdural granulation tissue.. HE stain x

In the experimental part, the path shape of a yarn contacting with the toric surface of twisting disk was photographed and simultaneously the yarn tension was measured under

In section 3, we will compare firstly some results of Aulbach and Minh in [2], secondly those of Seifert in [15], with our results... The paper is organized as follows: in Section 2

The distributed-microstructure model for the flow of single phase fluid in a partially fissured composite medium due to Douglas-Peszy´ nska- Showalter [12] is extended to a

In this regard, a test bed was set up in the Hydraulic Laboratory of our department that essentially consists of a closed hydraulic circuit, complete with valves and

We show that a discrete fixed point theorem of Eilenberg is equivalent to the restriction of the contraction principle to the class of non-Archimedean bounded metric spaces.. We

В данной работе приводится алгоритм решения обратной динамической задачи сейсмики в частотной области для горизонтально-слоистой среды

⑫ 亜急性硬化性全脳炎、⑬ ライソゾーム病、⑭ 副腎白質ジストロフィー、⑮ 脊髄 性筋萎縮症、⑯ 球脊髄性筋萎縮症、⑰