公开(公告)号：US20150322557A1

公开(公告)日：2015-11-12

申请号：US14705264

申请日：2015-05-06

Applicant: ALSTOM Technology Ltd

Inventor： Thomas ETTER ,  Roman ENGELI ,  Andreas KUENZLER

IPC: C22F1/10 ,  C22C19/07 ,  C21D6/00 ,  C22C19/03

CPC classification number: C22F1/10 ,  B22F3/1055 ,  B22F3/15 ,  B22F3/16 ,  B22F3/24 ,  B22F5/009 ,  B22F2003/248 ,  B33Y40/00 ,  C21D6/00 ,  C22C19/03 ,  C22C19/07 ,  Y02P10/295

Abstract: The invention relates to a method of post-built up heat treatment of an additively manufactured high strength component made of a gamma-prime strengthened superalloy based on Ni or Co or Fe or combinations thereof. An application of a rapid heating-up rate of 25 to 60° C./min in a specific temperature range during the first post-built heat treatment after additive manufacturing avoids or at least minimizes the gamma-prime precipitation in the component during heat-up. This results in crack-free components/articles compared to significant cracking present in conventionally heat treated components.

Abstract translation: 本发明涉及一种基于Ni或Co或Fe或其组合的由γ型强化超级合金制成的加成制造的高强度部件的后建造热处理方法。 在添加剂制造之后的第一后期热处理期间，在特定温度范围内快速加热速率为25至60℃/ min的应用避免或至少最小化在加热过程中组分中的γ'析出， 向上。 与常规热处理组件中存在的显着裂纹相比，这导致无裂纹组分/制品。