公开(公告)号：DE3415282A1

公开(公告)日：1984-12-06

申请号：DE3415282

申请日：1984-04-24

Applicant: UNITED TECHNOLOGIES CORP

Inventor： FIELD THOMAS T ,  CHEN OTIS Y ,  GEARY ARTHUR R ,  SALKELD RICHARD W ,  ULION NICHOLAS E

IPC: C30B21/02 ,  C22C19/05 ,  C22F1/00 ,  C22F1/10 ,  C30B29/52 ,  C30B33/00

Abstract: Concepts relating to the heat treatment of single crystal superalloy articles are disclosed. A first concept is the use of a heat treatment sequence which includes incipient melting of the article being heat treated followed by one or more steps which essentially heal the incipient melting damage. A second concept relates to the treatment of previously heat treated single crystal articles which have incipient melting. Methods are disclosed for healing this damage and for recovering the mechanical properties of such articles. A third concept disclosed is a particular cycle which permits effective heat treatment of a specific single crystal alloy composition.

公开(公告)号：CA1237964A

公开(公告)日：1988-06-14

申请号：CA455855

申请日：1984-06-05

Applicant: UNITED TECHNOLOGIES CORP

Inventor： FIELD THOMAS T ,  CHEN OTIS Y ,  GEARY ARTHUR R ,  SALKELD RICHARD W ,  ULION NICHOLAS E

IPC: C30B21/02 ,  C22C19/05 ,  C22F1/00 ,  C22F1/10 ,  C30B29/52 ,  C30B33/00

Abstract: Heat Treatment of Single Crystals Concepts relating to the heat treatment of single crystal superalloy articles are disclosed. A first concept is the use of a heat treatment sequence which includes incipient melting of the article being heat treated followed my one or more steps which essentially heal the incipient melting damage. A second concept relates to the treatment of previously heat treated single crystal articles which have incipient melting. Methods are disclosed for healing this damage and for recovering the mechanical properties of such articles. A third concept disclosed is a particular cycle which permits effective heat treatment of a specific single crystal alloy composition.