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    Austenitic aging of metallic compositions
    1.
    发明授权
    Austenitic aging of metallic compositions 失效
    奥氏体老化的金属组成

    公开(公告)号：US4067752A

    公开(公告)日：1978-01-10

    申请号：US550556

    申请日：1975-02-18

    申请人： Greville B. Brook ,  Peter L. Brooks ,  Roger F. Iles

    发明人： Greville B. Brook ,  Peter L. Brooks ,  Roger F. Iles

    IPC分类号： C22F1/08 ,  C22C9/01 ,  C22C9/04

    CPC分类号： C22F1/08

    摘要： Some metallic compositions that undergo a reversible transformation between austenitic and martensitic states as a result of being heated or cooled through critical temperature ranges may lose a portion or all of the ability to revert from martensite to austenite. That loss can be inhibited by "aging" the composition prior to its conversion to the martensitic state by holding it at a temperature at which it exists in the austenitic state. The time required to significantly inhibit loss of reversibility may vary as the nature of the composition changes. For a specific composition, the time required typically is shortened as the holding temperature is raised.The ability of a composition to respond to preconditioning methods by which its A.sub.s temperature can be elevated may also be improved by aging in the austenitic state prior to attempting preconditioning.

    摘要翻译： 由于在临界温度范围内被加热或冷却而导致在奥氏体和马氏体状态之间发生可逆转变的一些金属组合物可能会失去从马氏体回复到奥氏体的一部分或全部能力。 通过将组合物转变成马氏体状态，通过将其保持在其存在于奥氏体状态的温度，可以将组合物“老化”来抑制该损失。 显着抑制可逆性损失所需的时间可随着组合物性质的变化而变化。 对于特定的组合物，通常在保持温度升高时缩短所需的时间。

    Method of making a heat-recoverable article
    3.
    发明授权
    Method of making a heat-recoverable article 失效
    制造可热回收制品的方法

    公开(公告)号：US3989552A

    公开(公告)日：1976-11-02

    申请号：US510172

    申请日：1974-09-30

    申请人： Greville B. Brook ,  Roger F. Iles

    发明人： Greville B. Brook ,  Roger F. Iles

    IPC分类号： C22C5/02 ,  C22C5/04 ,  C22C5/06 ,  C22C5/10 ,  C22C9/01 ,  C22C9/04 ,  C22C9/05 ,  C22D1/00 ,  C21D7/02

    CPC分类号： C22C5/02 ,  C22C5/04 ,  C22C5/06 ,  C22C5/10 ,  C22C9/01 ,  C22C9/04 ,  C22C9/05

    摘要： A method of making a heat-recoverable article which comprises cooling an article in a first shape from a first temperature to a lower temperature, said article being formed from an alloy comprising at least one phase in the form of a primary solid solution of a first metal with at least one other metallic element which increases the stability of a high temperature phase of the first metal, which solution on cooling from said first temperature retains the high temperature phase but which transforms into an essentially banded martensite phase on cold working and then plastically deforming the article into a second shape, the temperature and rate of cooling being such that, on reheating, the article at least partly resumes said first shape.

    摘要翻译： 一种制备可热回收制品的方法，其包括将第一形状的制品从第一温度冷却到较低温度，所述制品由合金制成，所述合金包含至少一种形式为主要固溶体形式的第一相 具有至少一种其它金属元素的金属，其增加第一金属的高温相的稳定性，所述第一金属的冷却溶液在所述第一温度下冷却时保持高温相，但在冷加工时转变为基本上带状的马氏体相，然后塑性 将制品变形成第二形状，冷却的温度和速率使得在再加热时，制品至少部分地恢复所述第一形状。

    Method of making a heat-recoverable article
    4.
    发明授权
    Method of making a heat-recoverable article 失效
    制造可热回收制品的方法

    公开(公告)号：US3989551A

    公开(公告)日：1976-11-02

    申请号：US549328

    申请日：1975-02-12

    申请人： Greville B. Brook ,  Roger F. Iles

    发明人： Greville B. Brook ,  Roger F. Iles

    IPC分类号： C22C5/02 ,  C22C5/04 ,  C22C5/06 ,  C22C5/10 ,  C22C9/01 ,  C22C9/04 ,  C22C9/05 ,  C22D1/00

    CPC分类号： C22C5/10 ,  C22C5/02 ,  C22C5/04 ,  C22C5/06 ,  C22C9/01 ,  C22C9/04 ,  C22C9/05

    摘要： A method of making a heat-recoverable article which comprises cooling an article in a first shape from a first temperature to a lower temperature, said article being formed from an alloy comprising at least one phase in the form of a primary solid solution of a first metal with at least one other metallic element, which solution on cooling from said first temperature either (1) at least partially transforms into an essentially bonded martensite or (2) retains the high temperature phase but which transforms to an essentially bonded martensite on cold working, and then deforming the article into a second shape, the temperature and rate of cooling being such that, on reheating, the article at least partly resumes the first shape.

    摘要翻译： 一种制备可热回收制品的方法，其包括将第一形状的制品从第一温度冷却到较低温度，所述制品由合金制成，所述合金包含至少一种形式为主要固溶体形式的第一相 金属与至少一种其它金属元素，从所述第一温度冷却的溶液（1）至少部分地转变成基本上结合的马氏体或（2）保持高温相，但是在冷加工时转变为基本上粘结的马氏体 ，然后将制品变形成第二形状，冷却的温度和速率使得在再加热时，制品至少部分地恢复第一形状。

    Heat-treating method
    6.
    发明授权
    Heat-treating method 失效
    热处理方法

    公开(公告)号：US4095999A

    公开(公告)日：1978-06-20

    申请号：US735737

    申请日：1976-10-26

    申请人： Greville B. Brook ,  Peter L. Brooks ,  Roger Iles

    发明人： Greville B. Brook ,  Peter L. Brooks ,  Roger Iles

    IPC分类号： C22F1/00 ,  C22F1/08

    CPC分类号： C22F1/00 ,  C22F1/006

    摘要： The present invention relates to methods for modifying the temperatures at which metallic compositions capable of undergoing reversible transformation from the austenitic state to the martensitic state will undergo such transformation. According to the present invention, the transformation temperature of such metallic compositions may be raised by slowly heating a metallic composition which is in the martensitic state to a temperature above that at which transformation to the austenitic state normally occurs. Usually the slow heating is terminated and the composition cooled to a temperature below the temperature at which slow heating was terminated.

    摘要翻译： 本发明涉及用于改变能够经历从奥氏体状态到马氏体状态的可逆转变的金属组合物的温度变化的方法。 根据本发明，通过将处于马氏体状态的金属组合物缓慢加热至高于通常发生奥氏体相变的温度，可以提高这种金属组合物的转变温度。 通常缓慢加热终止，组合物冷却至低于缓慢加热终止温度的温度。