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公开(公告)号：US09677149B2
公开(公告)日：2017-06-13
申请号：US14306348
申请日：2014-06-17
Applicant: ALSTOM Technology Ltd.
Inventor： Thomas Etter , Daniel Beckel , Thomas Opderbecke , Guenter Ambrosy
CPC classification number: C21D9/505 , B23K31/02 , B23K2101/001 , C22F1/10 , F01D5/005
Abstract: A method for post-weld heat treatment of a without a filler material welded high strength component made of a gamma prime (γ′) strengthened superalloy can include providing the welded component, heating the welded component by applying a rapid heating-up rate in the range of 20° C./min to 40° C./min during the entire temperature range from room temperature (RT) up to a temperature T1 of at least 1000° C., holding the welded component at T1 and then heating the component by applying a slow heating-up rate of about 5° C./min to a final temperature Tf, then holding the welded component at Tf for a time tf sufficient for at least partially dissolving the gamma prime phase in a weld of the welded component and also in a base material surrounding the weld, and cooling the component with a cooling rate that is greater than or equal to about 20° C./min.
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2.发明申请公开(公告)号：US20140366995A1
公开(公告)日：2014-12-18
申请号：US14306348
申请日：2014-06-17
Applicant: ALSTOM Technology Ltd.
Inventor： Thomas Etter , Daniel Beckel , Thomas Opderbecke , Guenter Ambrosy
CPC classification number: C21D9/505 , B23K31/02 , B23K2101/001 , C22F1/10 , F01D5/005
Abstract: The invention relates to a method of post-weld heat treatment of a without a filler material electron beam or laser welded high strength component made of a gamma prime (γ′) strengthened superalloy based on Ni or Co or Fe or combinations thereof. The method consists of the following stepsa) providing the welded component, thenb) heating the welded component by applying a rapid heating-up rate in the range of about 20 to 40° C./min during the entire temperature range from RT up to a temperature T1 of at least 1000° C., thenc) holding the welded component at T1 and then heating the component by applying a slow heating-up rate of about 5° C./min to a final temperature Tf, thend) holding the welded component at Tf for a time tf, wherein isothermal dwell time tf is sufficient for at least partially dissolving the gamma prime phase in the weld and also in the base material surrounding the weld; thene) cooling the component with a cooling rate of about 20° C./min andf) finally optionally applying a precipitation hardening treatment according to the known state of the art
Abstract translation: 本发明涉及一种无需填充材料电子束或基于Ni或Co或Fe的γ'（γ'）强化超级合金或其组合制成的激光焊接高强度部件的焊后热处理方法。 该方法包括以下步骤：a）提供焊接部件，然后b）通过在从RT向上的整个温度范围内施加约20至40℃/分钟范围内的快速加热速率来加热焊接部件 然后c）将焊接成分保持在T1，然后通过施加约5℃/分钟的缓慢加热速率至最终温度Tf来加热组分，然后d ）将Tf上的焊接部件保持一段时间tf，其中等温停留时间tf足以至少部分地将伽马质相溶解在焊缝中以及围绕焊缝的基体材料中; 然后e）以约20℃/ min的冷却速度冷却组分，f）最后根据已知的现有技术任选地进行沉淀硬化处理
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