公开(公告)号：FR2635703A1

公开(公告)日：1990-03-02

申请号：FR8911509

申请日：1989-09-01

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BLACKBURN MARTIN JOHN ,  SMITH MICHAEL PRICE

IPC: B22F1/00 ,  C22C1/04 ,  C22C14/00

Abstract: Methods for enhancing the toughness of otherwise brittle powder metallurgy materials are presented. Adding moderate amounts of tough particulate to such brittle material enhances their ductility in excess of that which would be predicted mathematically.

公开(公告)号：GB2214192A

公开(公告)日：1989-08-31

申请号：GB8828035

申请日：1988-12-01

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BLACKBURN MARTIN JOHN ,  PAULONIS DANIEL FRANCIS ,  CALESS ROBERT HUSE ,  D ORVILLIERS ANNE LILLIAN

IPC: C22C19/03 ,  C22F1/00 ,  C22F1/10

公开(公告)号：FR2625753A1

公开(公告)日：1989-07-13

申请号：FR8817010

申请日：1988-12-22

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BLACKBURN MARTIN JOHN ,  PAULONIS DANIEL FRANCIS ,  CALESS ROBERT HUSE ,  ORVILLIERS ANNE LILLIAN D

IPC: C22C19/03 ,  C22F1/00 ,  C22F1/10

公开(公告)号：DE3842748A1

公开(公告)日：1989-07-13

申请号：DE3842748

申请日：1988-12-19

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BLACKBURN MARTIN JOHN ,  PAULONIS DANIEL FRANCIS ,  CALESS ROBERT HUSE ,  D ORVILLIERS ANNE LILLIAN

IPC: C22C19/03 ,  C22F1/00 ,  C22F1/10

公开(公告)号：NO873573L

公开(公告)日：1989-02-27

申请号：NO873573

申请日：1987-08-25

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BLACKBURN MARTIN JOHN ,  SMITH MICHAEL PRICE

IPC: C22C14/00

公开(公告)号：DE3024645A1

公开(公告)日：1981-02-19

申请号：DE3024645

申请日：1980-06-30

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BLACKBURN MARTIN JOHN ,  SMITH MICHAEL PRICE

IPC: C22C14/00

Abstract: Cast and forged titanium alloys suited for use at temperatures over 600 DEG C. are based on TiAl gamma phase structure. Useful alloys have about 1.5% or greater tensile ductility at temperatures of 260 DEG C. and below, thereby making them fabricable and suited for engineering applications. Disclosed are alloys having weight percent compositions of 31-36 aluminum, 0-4 vanadium, balance titanium (in atomic percent, about: 45-50Al, 0-3V, bal Ti). The inclusion of about 0.1 weight percent carbon improves creep rupture strength. To obtain high tensile strength, the alloys are forged at about 1025 DEG C. and aged at about 900 DEG C.; to obtain higher creep rupture strength and tensile ductility, a solution anneal at about 1150 DEG C. is interposed before aging.