[1]孙 咸.异种铁素体耐热钢接头界面组织及其影响[J].焊管,2022,45(5):22-35.[doi:10.19291/j.cnki.1001-3938.2022.05.004]
　SUN Xian.Interface Microstructure and its Influence of Dissimilar Ferrite Heat Resistant Steel Joint[J].,2022,45(5):22-35.[doi:10.19291/j.cnki.1001-3938.2022.05.004]
点击复制

异种铁素体耐热钢接头界面组织及其影响()
分享到：

《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
45
期数:
2022年第5期
页码:
22-35
栏目:
综述
出版日期:
2022-05-28

文章信息/Info

Title:
Interface Microstructure and its Influence of Dissimilar Ferrite Heat Resistant Steel Joint
文章编号:
10.19291/j.cnki.1001-3938.2022.05.004
作者:
孙 咸
太原理工大学 焊接材料研究所， 太原 030024
Author(s):
SUN Xian
Institute of Welding Consumables, Taiyuan University of Technology, Taiyuan 030024, China
关键词:
界面组织; 铁素体钢异种金属焊缝; 碳迁移; 裂纹; 蠕变断裂强度
Keywords:
interface microstructure;  ferrite dissimilar metal welds;  carbon migration;  crack;  creep rupture strength
分类号:
TG401
DOI:
10.19291/j.cnki.1001-3938.2022.05.004
文献标志码:
A
摘要:
综述了铁素体与铁素体异种金属焊缝（dissimilar metal welds，DMWs）接头界面组织及其影响。结果表明，在焊后热处理或运行温度下的铁素体钢DMWs接头的不均匀界面组织中，通常会形成脱碳层和增碳层。在铁素体钢DMWs焊接接头界面组织影响因素中，焊缝金属的化学成分有重要影响；焊后热处理规范（温度和时间）、工作温度下运行时间的影响较为突出；焊接工艺参数的影响亦不可忽略。异种钢接头界面处近缝区裂纹的产生，以及接头的蠕变强度随Larson Miller 参数增大而下降等不利影响，均为异种钢界面碳迁移行为所导致。焊缝成分控制法是接头界面组织控制或改善的必要条件，而脱碳层部位转移法能有效防止裂纹发生，亦是接头安全运行的重要工艺措施之一。
Abstract:
The interface microstructure and its influence in ferritic dissimilar metal weld joints were reviewed. The results show that in the heterogeneous interface structure of ferritic DMWs joints for post-weld heat treatment and long-term service at elevated temperatures, carbon-denuded and carbon-enriched layers are usually formed. Among the influencing factors on the interface structure of ferrite DMWs joints, the chemical composition of the weld metal has an important impact; the influence of post weld heat treatment specification (temperature and time) and operation time at high service temperature is very prominent; the influence of welding process parameters can not be ignored.The formation of cracks near the interface of dissimilar steel joints and the decrease of creep strength with the increase of L-M parameters are all caused by carbon migration at the interface of dissimilar steels.The control method of weld composition is a necessary condition for the control or improvement of the joint interface structure, and the transfer method of the decarburized layer position can effectively prevent the occurrence of cracks, and is also one of the important process measures for the safe operation of the joint.

参考文献/References:

[1] 李克俭，李晓刚，张宇，等. 异种金属焊接接头微观组织演化及高温失效机理综述[J]. 电焊机，2020，50（9）：17-43.[2] MAYR P. Evolution of microstructure and mechanical properties of the heat affected zone in B-containing 9% chromium steels[D]. Graz，Austria：Graz University of Technology，2007. [3] 孙咸，王红鸿. 新型耐热钢P91焊缝金属中的马氏体[J]. 焊接，2010（4）：7-12，69.[4] XU X. Microstructural evolution and creep damage accumulation in grade 92 steel welds for steam pipe applications[D]. Loughborough，UK：Loughborough University，2016. [5] 贾欣，朱晓林，钱玲，等. P22钢管焊接接头的组织结构和力学性能[J]. 钢管，2017，46（4）：23-27.[6] ELSALAM E，ELMAHALLAWI I，ELKOUSSY M R. Influence of heat input and post-weld heat treatment on boiler steel P91 （9Cr-1Mo-V-Nb） weld joints Part 1-Microstructure[J]. International Heat Treatment and Surface Engineering，2013，7（1）：23-31. [7] KOZESCHNIK E，POLT P，BRETT S，et al. Dissimilar 2.25Cr/9Cr and 2Cr/0.5CrMoV steel welds:part 1:characterisation of weld zone and numerical simulation[J]. Science and Technology of Welding and Joining，2002，7（2）：63-68. [8] KOZESCHNIK E， POLT P， BRETT S， et al. Dissimilar 2.25Cr/9Cr and 2Cr/0.5CrMoV steel welds:part 2:identification of precipitates[J]. Science and Technology of Welding and Joining，2002，7（2）：69-76. [9] LUNDIN C D，KHAN K K，YANG D. Effect of carbon migration in Cr-Mo weldments on metallurgical structure and mechanical properties[J]. Welding Research Council Bulletin，1995（407）:1-49. [10] 倪瑞澄，朱逢吾. 关于异种钢焊接接头的碳迁移问题[J]. 金属学报，1978，14（1）：96-106. [11] EPRI. Review of fabrication and in-service performance of a grade 91 header[R]. Palo Alto（CA）: EPRI，2013：3002001831. [12] 刘霞，蔡志鹏. 9%Cr-2.25%Cr异种钢焊接接头碳迁移行为研究[J]. 热力透平，2018，47（1）：24-28.[13] SPOPUSEK J，FORET R. More sophisticated thermodynamic designs of welds between dissimilar steels[J]. Science and Technology of Welding and Joining，2008，13（1）：17-24. [14] SUDHA C，TERRANCE A L，ALBERT S K，et al. Systematic study of formation of soft and hard zones in the dissimilar weldments of Cr-Mo steels[J]. Journal of Nuclear Materials，2002，302（4）：193-205. [15] NEMOTO T， SASAKI R， HATAYA H. Carbon Migration in Dissimilar Welded Joint[J]. Journal of the Japan Welding Society，1963，32（3）：205-212. [16] 郑云蔚，蔡克鹏，何雨晨，等. 异种钢窄间隙焊母材熔合比对碳迁移现象影响研究[J]. 机械工程学报，2016，52（12）：74-80.[17] BUCHMAYR B， CERJAK H， WITMER M， et al. Carbon diffusion and microstructure in dissimilar Cr-Mo-V-welds and their influence on the mechanical properties[C]//Proceedings of the Second International Conference on Trends in Welding Research. [S.l.]：ASM International，1990：237-242. [18] FISHBURN J D， HENRY J F. A failure of a circumferentially welded joint in a main steam line: causes and implications[R]. [S.l.]：EPRI welding and Repair Technology Conference，2006.[19] 颜景梅，邵靖利，蒙乐勤. 电站用P91与10CrM0910异种钢焊接工艺研究[J]. 管道技术与设备，2005（1）：28-30. [20] JANDOVA D，KASL J，KANTA V. Creep resistance of similar and dissimilar weld joints of P91 steel[J]. Materials at High Temperature，2006，23（3-4）：165-170. [21] National Institute for Materials Science. Data sheets on the elevated-temperature properties of 2.25Cr-1Mo steel for boiler and heat exchanger seamless tubes （STBA 24）. Creep data sheet No. 3B[Z]. Tsukuba， Japan，1986. [22] 杨富，张应霖，任永宁，等. 新型耐热钢焊接[M]. 北京：中国电力出版社，2006.[23] SELIGER P，THOMAS A. High temperature behaviour of similar and dissimilar welded components of steel grade P22 and P91[R]. Porto，Portugal：5th International Conference on Mechanics and Materials in Design，2006.

备注/Memo

备注/Memo:
收稿日期：2021-12-16作者简介：孙　咸，男，教授，主要从事焊接材料及金属焊接性方面的研究和教学工作，对焊接材料软件开发具有丰富经验。获国家科技进步二等奖1 项（2000 年），省（部）级科技进步一等奖2 项，二等奖3 项， 1992 年获国务院颁发的政府特殊津贴，已发表学术论文200 余篇。
更新日期/Last Update: 2022-05-30