Title:
耐衝撃特性に優れた耐衝撃用冷間加工硬化チタン成品及びその製造方法
Document Type and Number:
Japanese Patent JP4065644
Kind Code:
B2
Abstract:
Titaniums having excellent impact resistance are manufactured by methods that attain good cold workability by controlling the concentrations of oxygen, nitrogen, carbon and iron contained in ordinary pure titaniums in the desired range, applying combinations of preliminary working and annealing before or during the forming process, and controlling the Vickers hardness in the cross-sectional area to the desired range according to the concentrations, without adding aluminum, molybdenum, vanadium or other alloying elements.
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Inventors:
Kazuhiro Takahashi
Masaki
Kazuyuki Miura
Tatsuo Oya
Masaki
Kazuyuki Miura
Tatsuo Oya
Application Number:
JP2000074405A
Publication Date:
March 26, 2008
Filing Date:
March 16, 2000
Export Citation:
Assignee:
Nippon Steel Corporation
Nippon MCI Co., Ltd.
Nippon MCI Co., Ltd.
International Classes:
B21D1/05; C22C14/00; C22F1/00; C22F1/18; B21B3/00
Domestic Patent References:
| JP4184711A | ||||
| JP8295969A | ||||
| JP5311367A |
Attorney, Agent or Firm:
Hiroaki Tamura
Tomoyuki Yabuki
Tomoyuki Yabuki