发明授权
US07976649B2 Method of fabricating strips or foils, respectively, from TiAl6V4
有权
分别从TiAl6V4制造条或箔的方法
- 专利标题: Method of fabricating strips or foils, respectively, from TiAl6V4
- 专利标题(中): 分别从TiAl6V4制造条或箔的方法
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申请号: US12194624申请日: 2008-08-20
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公开(公告)号: US07976649B2公开(公告)日: 2011-07-12
- 发明人: Joachim Klose , Ella Rehtanz , Christiane Rothe , Ines Eulitz , Werner Beck
- 申请人: Joachim Klose , Ella Rehtanz , Christiane Rothe , Ines Eulitz , Werner Beck
- 申请人地址: DE Freiberg
- 专利权人: GfE Fremat GmbH
- 当前专利权人: GfE Fremat GmbH
- 当前专利权人地址: DE Freiberg
- 代理机构: McGlew and Tuttle, P.C.
- 优先权: DE102007040132 20070824
- 主分类号: C22F1/18
- IPC分类号: C22F1/18
摘要:
A method of fabricating a superplastically formable strip or a superplastically formable foil from TiAl6V4 with a thickness of no more than 0.9 mm, preferably less than or equal to 0.5 mm, comprises the steps: a) hot rolling a sheet metal made of TiAl6V4; b) thermal pre-treatment of the hot-rolled sheet metal at a temperature between 650 and 850° C.; and c) cold rolling the hot-rolled and thermally pre-treated sheet metal at a forming rate of at least 30%, wherein the forming rate per single pass amounts to between 1 and 15%, to form a strip or a foil with a thickness of no more than 0.9 mm, wherein the cold-rolled strip or the cold-rolled foil is not annealed.
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