公开(公告)号：US4790884A

公开(公告)日：1988-12-13

申请号：US20600

申请日：1987-03-02

申请人： Kenton P. Young ,  Edward L. Colvin ,  Joel A. Bowers ,  Robert W. Westerlund

发明人： Kenton P. Young ,  Edward L. Colvin ,  Joel A. Bowers ,  Robert W. Westerlund

IPC分类号： C22F1/00 ,  C22F1/04 ,  C22F1/047 ,  C22F1/053 ,  C22F1/057

CPC分类号： C22F1/047 ,  C22F1/04 ,  C22F1/053 ,  C22F1/057

摘要： Disclosed is a method of making aluminum base alloy flat rolled product substantially free of Luder's lines after stretching, the method comprising the steps of providing a body of a lithium-containing aluminum base alloy and working the body to produce a flat rolled product prior to solution heat treating and quenching. The flat rolled product is preaged for a time and temperature which does not substantially affect mechanical properties but which permits stretching the flat rolled product without formation of Luder's lines. Thereafter, the preage flat rolled product is stretched and aged to a condition having a substantially stable level of mechanical properties.

公开(公告)号：US5066342A

公开(公告)日：1991-11-19

申请号：US367791

申请日：1989-06-19

申请人： Roberto J. Rioja ,  Joel A. Bowers ,  R. Steve James

发明人： Roberto J. Rioja ,  Joel A. Bowers ,  R. Steve James

IPC分类号： C22C21/00 ,  C22C21/12 ,  C22F1/04 ,  C22F1/057

CPC分类号： C22C21/00 ,  C22C21/12 ,  C22F1/04 ,  C22F1/057

摘要： An aluminum base alloy wrought product having an isotropic texture and a process for preparing the same is disclosed. The product has the ability to develop improved properties in the 45.degree. direction or more uniform properties throughout the thickness and in the short transverse direction in response to an aging treatment and is comprised of 0.2 to 5.0 wt. % Li, 0.05 to 6.0 wt. % Mg, at least 2.45 wt. % Cu, 0.1 to 1.0 wt. % Mn, 0.05 to 12 wt. % Zn, 0.5 wt. % max. Fe, 0.5 wt. % max. Si, the balance aluminum and incidental impurities. The product has imparted thereto, prior to a hot rolling step, a recrystallization effect to provide therein after hot rolling a metallurgical structure generally lacking intense work texture characteristics. After an aging step, the product has improved levels of properties in the 45.degree. direction or more uniform properties throughout the thickness and in the short transverse direction.

摘要翻译： 公开了具有各向同性结构的铝基合金锻造产品及其制备方法。 该产品能够响应于时效处理而在整个厚度和短横向方向上在45度方向上发展改进的性能或更均匀的性能，并且包含0.2至5.0重量％ ％Li，0.05〜6.0重量％ ％Mg，至少2.45wt。 ％Cu，0.1〜1.0wt。 ％Mn，0.05〜12重量％ ％Zn，0.5wt。 最大％ Fe，0.5wt。 最大％ Si，余量为铝和杂质。 在热轧步骤之前赋予产品再结晶效果，在热轧后提供通常缺乏强烈的工作质地特征的冶金结构。 老化步骤后，该产品在整个厚度和短横向方向上具有改善的45度方向性能或更均匀的性能。