1.中国科学院金属研究所师昌绪先进材料创新中心,沈阳 110016
2.中国科学院核用材料与安全评价;重点实验室,沈阳 110016
3.中广核铀业发展有限公司中广核先进燃料研制中心,阳江 529500
杨亚倩(1991—),女,硕士,工程师;E-mail:yangyq@imr.ac.cn
梁田(1983—),男,博士,副研究员,硕士生导师;E-mail:tliang@imr.ac.cn
收稿:2023-08-17,
纸质出版:2024-05-30
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杨亚倩,马帅,王惠生等.Mn含量对Inconel718板材焊接接头组织性能的影响[J].特殊钢,2024,45(03):96-104.
Yang Yaqian,Ma Shuai,Wang Huisheng,et al.Effect of Mn Content on Microstructure and Properties of Inconel718 Plate Welded Joint[J].Special Steel,2024,45(03):96-104.
杨亚倩,马帅,王惠生等.Mn含量对Inconel718板材焊接接头组织性能的影响[J].特殊钢,2024,45(03):96-104. DOI: 10.20057/j.1003-8620.2023-00176.
Yang Yaqian,Ma Shuai,Wang Huisheng,et al.Effect of Mn Content on Microstructure and Properties of Inconel718 Plate Welded Joint[J].Special Steel,2024,45(03):96-104. DOI: 10.20057/j.1003-8620.2023-00176.
采用
w
[Mn]<0.01%、0.24%、0.34%三种不同合金的固溶态Inconel718热轧板材进行直流脉冲电弧焊接,经双级热时效处理后进行室温拉伸实验,研究Mn含量的变化对焊接接头微观组织及时效态力学性能影响规律。结果表明,三种不同Mn含量焊接接头组织中只存在Laves相,没有δ相析出,随着
w
[Mn]由<0.01%提高至0.34%,焊接接头中Laves相析出体积分数略有增多。经过双级热时效处理后,γ΄΄开始析出,焊接接头组织中Laves相含量略有减少。与时效态母材拉伸性能相比,焊接接头拉伸强度和伸长率有所降低。且随着Mn含量的增加,时效态焊接接头拉伸性能略有降低,抗拉强度由1 250 MPa小幅降低至1 178 MPa和1 213 MPa,三种不同Mn含量的焊接接头时效态拉伸样品断裂位置皆为焊缝区域,且均为韧性断裂。
The service performance of welded parts is directly impacted by the microstructure of the Inconel718 welded joint; however, there is a lack of comprehensive research on the impact of the Mn element on the microstructure and performance of the welded junction. In this study, the solid-solution Inconel718 hot-rolled plates with varied Mn concentrations of <0.01%, 0.24%, and 0.34% were joined by using DC pulse arc welding before two stages of thermal aging. The tensile test of these plates was performed at room temperature to determine the impact of Mn content on the microstructure and aging mechanical properties of welded joints. The results demonstrate that there are only the Laves phase and no δ phase in the welded joints with three different Mn concentrations. The volume proportion of Laves phase precipitates in the welded joints significantly increases as the Mn content rises from <0.01% to 0.34%. However, the content of Laves phases decreases slightly, and γ΄΄ begins to precipitate after a two-stage thermal aging treatment. In addition, the tensile strength and elongation of the welded joint are inferior to those of the aged base metal. The tensile properties of the aged welded joints are worsened by the increase in Mn content, causing a decrease in tensile strength from 1 250 MPa to 1 178 MPa and 1 213 MPa, respectively. The three welded joints are broken at the welded areas in the tensile test, all of which are ductile fractures.
郭建亭 . 高温合金材料学(下册) [M]. 北京 : 科学出版社 , 2010 : 711 .
Loria E . Superalloy 718: Metallurgy and Applications: Proceedings of the International Symposium [C]. Pittsburgh, PA , 1989 .
Dudzinski D , Devillez A , Moufki A , et al . A review of developments towards dry and high speed machining of Inconel 718 alloy [J]. International Journal of Machine Tools and Manufacture , 2004 , 44 ( 4 ): 439 - 456 .
田洪志 , 邬昌华 . 核电用GH4169合金冷加工成型工艺研究 [J]. 发电设备 , 2011 , 25 ( 6 ): 419 - 420+436 .
Sencer B H , Bond G M , Garner F A , et al . Correlation of radiation-induced changes in mechanical properties and microstructural development of Alloy 718 irradiated with mixed spectra of high-energy protons and spallation neutrons [J]. Journal of Nuclear Materials , 2001 , 296 ( 1-3 ): 145 - 154 .
Leonard K J , Gussev M N , Stevens J N , et al . Analysis of stress corrosion cracking in alloy 718 following commercial reactor exposure [J]. Journal of Nuclear Materials , 2015 , 466 : 443 - 459 .
李 晴 , 李成龙 , 钟裕国 , 等 . 固溶温度对UNS N07718合金组织及冲击性能的影响 [J]. 特殊钢 , 2023 , 44 ( 1 ): 78 - 82 .
Deleume J , Cloué J M , Andrieu E . Influence of δ phase precipitation on the stress corrosion cracking resistance of alloy 718 in PWR primary water [J]. Journal of Nuclear Materials , 2008 , 382 ( 1 ): 70 - 75 .
Sivaprasad K , Ganesh Sundara Raman S . Influence of weld cooling rate on microstructure and mechanical properties of alloy 718 weldments [J]. Metallurgical and Materials Transactions A , 2008 , 39 ( 9 ): 2115 - 2127 .
郭占英 , 刘拥军 , 方海鹏 . 热处理对GH4169激光焊接头组织性能的影响 [J]. 材料科学与工艺 , 2020 , 28 ( 2 ): 60 - 66 .
盛钟琦 , 李卫军 , 王丛林 , 等 . 固溶处理时Inconel 718焊接试样中铌的扩散 [J]. 核动力工程 , 2003 , 24 ( 3 ): 241 - 244 .
Richards N L , Chaturvedi M C . Effect of minor elements on weldability of nickel base superalloys [J]. International Materials Reviews , 2000 , 45 ( 3 ): 109 - 129 .
Holt R T . Trace elements and residual elements in superalloys, Report LTR-ST-1471 for AGARD Structures and Materials Panel Fall 1983 Meeting in Lisbon , Portugal , 1983 .
Chen C , Thompson R G , Davis D W . A study of effects on phosphorus, sulfur, boron and carbon on laves and carbide formation in alloy 718 [C]. Superalloys 718, 625 and Various Derivatives (1991). 1991TMS .
莫 燕 , 王东哲 , 蒋 斌 , 等 . 钒微合金化对718合金中铌元素偏析行为的影响 [J]. 金属热处理 , 2017 , 42 ( 4 ): 37 - 41 .
白亚冠 , 李红梅 , 韩秀栋 , 等 . GH4169合金δ相析出与溶解行为研究 [J]. 特殊钢 , 2021 , 42 ( 5 ): 21 - 25 .
Sullivan C P , DONACHIE JR M J . Microstructures and mechanical properties of iron-base (-containing) superalloys [J]. Metals Eng. Quart. , 1971 , 11 ( 4 ): 1 - 11 .
Yao X Y , Liu F , Yang S L , et al . Effect of cobalt on the precipitation of Laves, γ’ and γ″ phases in a 718 base alloy with 1.2wt.% Al [J]. Journal of Materials Research and Technology , 2021 , 15 : 4427 - 4436 .
Dubiel B , Kruk A , Stepniowska E , et al . TEM, HRTEM, electron holography and electron tomography studies of gamma' and gamma'' nanoparticles in Inconel 718 superalloy [J]. Journal of Microscopy , 2009 , 236 ( 2 ): 149 - 157 .
Sundararaman M , Mukhopadhyay P , Banerjee S . Deformation behaviour of γ″ strengthened inconel 718 [J]. Acta Metallurgica , 1988 , 36 ( 4 ): 847 - 864 .
吴艳阳 , 程世长 , 刘正东 , 等 . 固溶温度对改型Inconel 718合金组织和性能的影响 [J]. 特殊钢 , 2007 , 28 ( 3 ): 19 - 21 .
Manikandan S G K , Sivakumar D , Kamaraj M , et al . Laves phase control in inconel 718 weldments [J]. Materials Science Forum , 2012 , 710 : 614 - 619 .
Woo I , Nishimoto K , Tanaka K , et al . Effect of homogenisation heat treatment on heat affected zone cracking susceptibility.Study of weldability of Inconel 718 cast alloy (3rd Report) [J]. Welding International , 2000 , 14 ( 7 ): 523 - 532 .
杨彦莉 . 镍基高温合金K418和K4169组织与夹杂物的研究 [D]. 兰州 : 兰州理工大学 , 2015 .
郭建亭 . 铝和钛对一种35镍15铬型铁基高温合金组织结构和力学性能的影响 [J]. 金属学报 , 1978 , 14 ( 3 ): 227-238+323 - 324 .
Huang W P , Yang J J , Yang H H , et al . Heat treatment of Inconel 718 produced by selective laser melting: Microstructure and mechanical properties [J]. Materials Science and Engineering: A , 2019 , 750 : 98 - 107 .
魏翔云 , 杨奇斌 . Mn和Si对一种Fe-Ni基高温合金持久缺口敏感性的影响 [J]. 金属学报 , 1984 , 20 ( 4 ): 261-265+386 - 387 .
Muralidharan B G , Shankar V , Gill T . Weldability of Inconel 718-a review [J]. India , 1996 .
郭建亭 . 高温合金材料学-中册-制备工艺 [M]. 北京 : 科学出版社 , 2008 : 184 .
Mei Y P , Liu Y C , Liu C X , et al . Effect of base metal and welding speed on fusion zone microstructure and HAZ hot-cracking of electron-beam welded Inconel 718 [J]. Materials & Design , 2016 , 89 : 964 - 977 .
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