公开(公告)号：IT1181943B

公开(公告)日：1987-09-30

申请号：IT2426384

申请日：1984-12-27

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BROWN EDGAR E ,  HATALA ROBERT W

IPC: C21D8/00 ,  C22F1/00 ,  C22F1/10 ,  C22C

Abstract: Heat treatments are described which improve subsequent HIP treatment results of superalloy articles. The heat treatments substantially eliminate certain low melting phases which otherwise would cause problems relating to gas entrapment during a HIP process. The articles are heated to a temperature near but below the intended HIP temperature for a period of time sufficient to reduce the low melting phase.

公开(公告)号：FR2557146A1

公开(公告)日：1985-06-28

申请号：FR8419130

申请日：1984-12-14

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BROWN EDGAR E ,  HATALA ROBERT W

IPC: C21D8/00 ,  C22F1/00 ,  C22F1/10 ,  B23P9/02

Abstract: Heat treatments are described which improve subsequent HIP treatment results of superalloy articles. The heat treatments substantially eliminate certain low melting phases which otherwise would cause problems relating to gas entrapment during a HIP process. The articles are heated to a temperature near but below the intended HIP temperature for a period of time sufficient to reduce the low melting phase.