公开(公告)号：WO1989003740A1

公开(公告)日：1989-05-05

申请号：PCT/US1988003246

申请日：1988-09-20

Applicant: AVCO CORPORATION

Inventor： AVCO CORPORATION ,  LEE, Jack, W. ,  MILLER, Jule, A. ,  IOVENE, Michael, A.

IPC: B22F07/08

CPC classification number: B23P6/007 ,  B22F1/0003 ,  B23K35/0244 ,  B23K35/304 ,  B23P6/002 ,  C22C1/0433 ,  F01D5/005 ,  Y02T50/671

Abstract: A method of repairing damages in a superalloy component is disclosed wherein existing brazed joints and protective coatings are not harmed. The method entails the use of a silicon-free metal mixture comprising (i) a low melting alloy having a liquidus below the temperature to be used to deposit the metal mixture, (ii) an alloy melting above about 2100 DEG F, and (iii) optionally nickel. The resultant repair has a solidus temperature of at least 1950 DEG F, preferably at least 2000 DEG F.

Abstract translation: 公开了一种在超合金部件中修复损坏的方法，其中现有的钎焊接头和保护涂层不受损害。 该方法需要使用无硅金属混合物，其包含（i）具有低于用于沉积金属混合物的温度的液相线的低熔点合金，（ii）熔点高于约2100°F的合金和（iii ）任选的镍。 所得的修复具有至少1950°F，优选至少2000°F的固相线温度。

公开(公告)号：WO1989003264A1

公开(公告)日：1989-04-20

申请号：PCT/US1988003247

申请日：1988-09-20

Applicant: AVCO CORPORATION

Inventor： AVCO CORPORATION ,  LEE, Jack, W. ,  MILLER, Jule, A. ,  IOVENE, Michael, A.

IPC: B22F01/00

CPC classification number: B22F1/0003 ,  C22C1/0433 ,  Y10T428/12944 ,  Y10T428/12993

Abstract: A silicon-free metal powder mixture suitable for filling holes, slots and widegap joints in high temperature superalloys and/or for reforming damaged or missing surface extensions thereof, and capable of being processed at a temperature of about 2000°F. The semi-solid metal mixture has a sufficiently high surface tension and viscosity to be essentially non-flowing at the processing temperature so that it retains its applied shape and location without flowing during processing. The metal mixture after processing has a solidus temperature of at least 1950°F.