热循环峰值温度对G115钢管热影响区微观组织与性能的影响

doi:10.13251/j.issn.0254-6051.2025.02.018

金属热处理 ›› 2025, Vol. 50 ›› Issue (2): 114-120.DOI: 10.13251/j.issn.0254-6051.2025.02.018

热循环峰值温度对G115钢管热影响区微观组织与性能的影响

陈千¹, 陈正宗¹, 刘正东¹, 蔡文河², 姜海峰³, 包汉生¹, 何西扣¹

1.钢铁研究总院有限公司特殊钢研究院, 北京 100081;
2.中国大唐集团科学技术研究院有限公司, 北京 200940;
3.大唐郓城发电有限公司, 山东郓城 274700

收稿日期:2024-11-04 修回日期:2024-12-05 发布日期:2025-04-10
通讯作者: 陈正宗,高级工程师,E-mail:chenzhengzong@nercast.com
作者简介:陈千(1999—),男,硕士研究生,主要研究方向为耐热钢焊接,E-mail:13657970919@163.com。
基金资助:
国家重点研发计划(2021YFB3704104)

Effect of peak temperature of thermal cycling on microstructure and properties of heat affected zone of G115 steel pipe

Chen Qian¹, Chen Zhengzong¹, Liu Zhengdong¹, Cai Wenhe², Jiang Haifeng³, Bao Hansheng¹, He Xikou¹

1. Research Institute of Special Steels, Center Iron and Steel Research Institute Co., Ltd., Beijing 100081, China;
2. China Datang Corporation Science and Technology Research Institute Co., Ltd., Beijing 200940, China;
3. Datang Yuncheng Power Generation Co., Ltd., Yuncheng Shandong 274700, China

Received:2024-11-04 Revised:2024-12-05 Published:2025-04-10

摘要/Abstract

摘要： 通过Gleeble-1500D热模拟试验机对G115钢管热影响区开展分区热模拟,结合OM、SEM、EBSD、TEM及显微硬度计等对热影响区亚区的显微组织结构及硬度进行分析。结果表明,G115钢管焊接热影响区主要分为粗大等轴晶的粗晶区(CGHAZ)、破碎细小晶粒包围着大晶粒的精细混晶结构的细晶区(FGHAZ)、与母材差异不大为回火马氏体组织的临界区(ICHAZ);完全相变组织(CGHAZ、FGHAZ)的几何位错密度(24.1×10¹⁴、24.5×10¹⁴m^-2)约是未完全相变组织(ICHAZ) (13.6×10¹⁴、11.8×10¹⁴ m^-2)的两倍,即ICHAZ与FGHAZ界面处存在较高的应力应变梯度;FGHAZ组织内仅少量存在M₂₃C₆和Laves相,在更高温度下可完全溶解;CGHAZ内仍少量分布MX相,富Cu相以球状仅于ICHAZ晶内析出。热模拟后组织-硬度与热循环峰值温度呈正相关,其中CGHAZ显微硬度为437.55 HV0.2,FGHAZ硬度为421.85 HV0.2,临近母材处ICHAZ的硬度约为375 HV0.2。

关键词: G115钢管, 焊接热循环, 微观组织, 硬度

Abstract: Heat affected zone (HAZ) of the G115 steel pipe was simulated by Gleeble-1500D thermal simulation machine, and the microstructure and hardness of the subregions of heat affected zone were analyzed by means of OM, SEM, EBSD, TEM and microhardness tester. The results indicate that the welded heat affected zone of G115 steel pipe is mainly divided into the coarse grain heat affected zone (CGHAZ) with coarse equiaxed grains, the fine grain heat affected zone (FGHAZ) with a fine mixed grain structure of large grains surrounded by crushed fine grains, and the intercritical heat affected zone (ICHAZ) with tempered martensite, which shows a little difference from the base metal. The geometric dislocation density of the fully phase-transformed microstructure (CGHAZ,FGHAZ) (24.1×10¹⁴, 24.5×10¹⁴ m^-2) is approximately twice that of the incompletely phase-transformed microstructure (ICHAZ) (13.6×10¹⁴, 11.8×10¹⁴ m^-2), meaning that there is a significant stress-strain gradient at the interface between ICHAZ and FGHAZ. Only a small number of M₂₃C₆and Laves phases are present within the FGHAZ, which can completely dissolve at higher temperatures. The complete dissolution temperature of the MX phase is higher, and it is still distributed in a small number in the CGHAZ. The Cu-rich phase only precipitates spherically within the grains at the ICHAZ. After the thermal simulation, the hardness and microstructure are positively correlated with the thermal cycling peak temperature. The microhardness of the CGHAZ, FGHAZ and ICHAZ near the base metal is 437.55, 421.85 and about 375 HV0.2, respectively.

Key words: G115 steel pipe, welding thermal cycling, microstructure, hardness

中图分类号:

TG142.1

陈千, 陈正宗, 刘正东, 蔡文河, 姜海峰, 包汉生, 何西扣. 热循环峰值温度对G115钢管热影响区微观组织与性能的影响[J]. 金属热处理, 2025, 50(2): 114-120.

Chen Qian, Chen Zhengzong, Liu Zhengdong, Cai Wenhe, Jiang Haifeng, Bao Hansheng, He Xikou. Effect of peak temperature of thermal cycling on microstructure and properties of heat affected zone of G115 steel pipe[J]. Heat Treatment of Metals, 2025, 50(2): 114-120.

参考文献

[1] 刘正东, 陈正宗, 包汉生, 等. 新一代马氏体耐热钢G115 研发及工程化[M]. 北京: 冶金工业出版社, 2020.
[2] 王倩, 王卫良, 刘敏, 等. 超(超)临界燃煤发电技术发展与展望[J]. 热力发电, 2021, 50(2): 1-9.
Wang Qian, Wang Weiliang, Liu Min, et al. Development and prospect of (ultra) supercritical coal-fired power generation technology[J]. Thermal Power Generation, 2021, 50(2): 1-9.
[3] Brózda J. New generation creep-resistant steels, their weldability and properties of welded joints: T/P92 steel[J]. Welding International, 2005, 19(1): 5-13.
[4] 赵洪伟, 刘利. P92和G115在630 ℃超超临界电站机组管材选用分析[J]. 电力勘测设计, 2022(3): 6-11.
Zhao Hongwei, Liu Li. Analysis of P92 and G115 in pipe material selecting for 630 ℃ ultra-supercritical power plant unit[J]. Electric Power Survey and Design, 2022(3): 6-11.
[5] 刘正东, 陈正宗, 何西扣, 等. 630～700 ℃超超临界燃煤电站耐热管及其制造技术进展[J]. 金属学报, 2020, 56(4): 539-548.
Liu Zhengdong, Chen Zhengzong, He Xikou, et al. Systematical innovation of heat resistant materials used for 630-700 ℃ advanced ultra supercritical (A-USC) fossil fired boilers[J]. Acta Metallurgica Sinica, 2020, 56(4): 539-548.
[6] 杨丽霞. 超超临界耐热钢G115中Cu的跨尺度表征及其成分—组织结构—性能相关性研究[D]. 北京: 钢铁研究总院, 2017.
Yang Lixia. Multi-scale characterization of Cu and correlation study on composition-structure-properties of ultra supercritical heat resistant steel G115[D]. Beijing: Central Iron and Steel Research Institute, 2017.
[7] 刘震. 钨和硼元素对G115新型马氏体耐热钢组织与性能的影响[D]. 北京: 北京科技大学, 2019.
Liu Zhen. Effect of tungsten and boron on microstructure and properties of G1l5 new martensitic heat resistant steel[D]. Beijing: University of Science and Technology Beijing, 2019.
[8] Kondo M, Tabuchi M, Tsukamoto M, et al. Suppressing type IV failure via modification of heat affected zone microstructures using high boron content in 9Cr heat resistant steel welded joints[J]. Science and Technology of Welding and Joining, 2006, 11(2): 216-223.
[9] Guo J, Xu X, Jepson M A E, et al. Influence of weld thermal cycle and post weld heat treatment on the microstructure of MarBN steel[J]. The International Journal of Pressure Vessels and Piping, 2019, 174: 13-24.
[10] Matsunaga T, Hongo H, Tabuchi M, et al. Suppression of grain refinement in heat-affected zone of 9Cr-3W-3Co-VNb steels[J]. Materials Science and Engineering A, 2016, 655: 168-174.
[11] Liu L, Yang Z G, Zhang C, et al. An in situ study on austenite memory and austenitic spontaneous recrystallization of a martensitic steel[J]. Materials Science and Engineering A, 2010, 527(27/28): 7204-7209.
[12] Kimmins S T, Gooch D J. Austenite memory effect in 1Cr-1Mo-0.75V(Ti, B) steel[J]. Metal Science Journal, 2013, 17(11): 519-532.
[13] Zhang J, Yu L, Ding R, et al. Deformation behavior, microstructure evolution, and rupture mechanism of the novel G115 steel welded joint during creep[J]. Materials Characterization, 2023, 205: 113275.
[14] Zhang J, Yu L, Gao Q, et al. Development of weld filler material to match the advanced martensitic heat resistance steel G115 and tailoring the performance by tempering temperature[J]. Journal of Materials Research and Technology, 2022, 21: 2515-2531.
[15] Xu X, West G D, Siefert J A, et al. The influence of thermal cycles on the microstructure of grade 92 steel[J]. Metallurgical and Materials Transactions A, 2017, 48(11): 5396-5414.
[16] Havelka L, Mohyla P, Sondel M. Thermal cycle measurement of P92 welded joints[C] //Metal 2014. Brno, 2014: 668-673.
[17] Xu Y, Nie Y, Wang M, et al. The effect of microstructure evolution on the mechanical properties of martensite ferritic steel during long-term aging[J]. Acta Materialia, 2017, 131: 110-122.
[18] 肖博. 新型马氏体耐热钢G115蠕变微观损伤机理及本构模型[D]. 天津: 天津大学, 2020.
Xiao Bo. Creep micro-damage mechanism and constitutive model of a novel martensitic heat-resistant G115 steel[D]. Tianjin: Tianjin University, 2020.
[19] Dak G, Pandey C. Study on effect of weld groove geometry on mechanical behavior and residual stresses variation in dissimilar welds of P92/SS304L steel for USC boilers[J]. Archives of Civil and Mechanical Engineering, 2022, 22(3): 1-34.
[20] Kumar A, Pandey S M, Pandey C. Dissimilar weldments of ferritic/martensitic grade P92 steel and Inconel 617 alloy: Role of groove geometry on mechanical properties and residual stresses[J]. Archives of Civil and Mechanical Engineering, 2022, 23: 54.
[21] Dak G, Pandey C. Study on effect of weld groove geometry on mechanical behavior and residual stresses variation in dissimilar welds of P92/SS304L steel for USC boilers[J]. Archives of Civil and Mechanical Engineering, 2022, 22: 140.
[22] Yan W, Wang W, Shan Y Y, et al. Microstructural stability of 9-12%Cr ferrite/martensite heat-resistant steels[J]. Frontiers of Materials Science, 2013(1): 1-27.
[23] Homolová V, Janovec J, Záhumensky＇ P, et al. Influence of thermal-deformation history on evolution of secondary phases in P91 steel[J]. Materials Science and Engineering A, 2003, 349(1/2): 306-312.
[24] Panait C G, Zielinska-Lipiec A, Koziel T, et al. Evolution of dislocation density, size of subgrains and MX-type precipitates in a P91 steel during creep and during thermal ageing at 600 ℃ for more than 100 000 h[J]. Materials Science and Engineering A, 2010, 527(16/17): 4062-4069.

热循环峰值温度对G115钢管热影响区微观组织与性能的影响

Effect of peak temperature of thermal cycling on microstructure and properties of heat affected zone of G115 steel pipe

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