公开(公告)号：US20170146046A1

公开(公告)日：2017-05-25

申请号：US14948941

申请日：2015-11-23

申请人： ATI PROPERTIES, INC.

发明人： John W. Foltz, IV ,  Gavin Garside

IPC分类号： F16B33/00 ,  C22C14/00 ,  F16B19/04 ,  F16B43/00 ,  F16B39/24 ,  C22F1/18 ,  F16B37/00

CPC分类号： F16B33/00 ,  C22C14/00 ,  C22F1/183 ,  F16B19/04 ,  F16B37/00 ,  F16B39/24 ,  F16B43/00

摘要： A method for increasing tensile strength of a cold workable alpha-beta titanium alloy comprises solution heat treating a cold workable alpha-beta titanium alloy in a temperature range of Tβ-106° C. to Tβ-72.2° C. for 15 minutes to 2 hours; cooling the alpha-beta titanium alloy at a cooling rate of at least 3000° C./minute; cold working the alpha-beta titanium alloy to impart an effective strain in the range of 5 percent to 35 percent in the alloy; and aging the alpha-beta titanium alloy in a temperature range of Tβ-669° C. to Tβ-517° C. for 1 to 8 hours. Fastener stock and fasteners including solution treated, quenched, cold worked, and aged alpha-beta titanium alloys are also disclosed.