时效工艺对Inconel 718合金显微结构和力学性能的影响
李威霖，丁青青*，吴中天，张昊翔，唐俊杰，姚 霞，魏 晓，张跃飞，沈永强，张 泽*，贝红斌*
（1.浙江大学材料科学与工程学院，浙江杭州310027；2. 浙江大学硅材料国家重点实验室，浙江杭州310027；3.浙江杭佳特种弹簧有限公司，浙江杭州311500）
摘 要 Inconel 718/GH4169高温合金广泛应用于航空、航天、石油、化工和核能等领域。其优异的力学性能包括强度、韧性和高温抗蠕变性与合金热处理工艺中显微结构的演变密切相关。厘清时效工艺和显微结构以及力学性能间的关联关系可为工业界提供优化时效工艺的科学依据。本文研究了该合金不同时效工艺后显微结构和力学性能的变化，揭示了时效温度和时长对析出相尺寸、数量和合金力学性能的影响，明确了Inconel 718/GH4169合金工业应用中热处理工艺的优化方向。
关键词 镍基合金；析出强化；时效工艺；力学性能；显微结构
中图分类号：TG132.3+2；TG113.12；TG113.25+1；TG113.25+3文献标识码：A doi:10.3969/j.issn.1000-6281.2023.05.001
The effect of aging treatment on microstructure and mechanical properties of Inconel 718 alloy
LI Wei-lin1, DING Qing-qing1*, WU Zhong-tian1, ZHANG Hao-xiang1, TANG Jun-jie1, YAO Xia1, WEI Xiao1, ZHANG Yue-fei1, SHEN Yong-qiang3, ZHANG Ze1,2*, BEI Hong-bin1*
(1. School of Materials Science and Engineering, Zhejiang University, Hangzhou Zhejiang 310027; 2. State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou Zhejiang 310027; 3. Zhejiang Hangjia Special Spring Co., Ltd., Hangzhou Tonglu, Zhejiang 311500, China)
Abstract Inconel 718/GH4169 superalloys are widely used in aviation, aerospace, petrochemical and energy industries because their excellent mechanical properties, such as high strength, toughness, and creep resistance up to a temperature of 650 oC. The microstructure and mechanical properties of the alloy are determined by heat treatment processing, especially the aging treatment. Based on advanced microscopies, microstructures and mechanical properties of Inconel 718 alloy after different aging treatments have been systemically investigated to reveal their relationship, which might provide guidelines to optimize the aging treatment processing for industries. Results show that aging temperature and time greatly affect the precipitation behavior, and the distribution (size and number) of precipitates determines mechanical properties. Besides, the optimization of the heat treatment processing for industrial application has been also briefly discussed.
Keywords nickel-based alloys; precipitation strengthening; aging treatment process; mechanical properties; microstructure
“全文下载请到同方知网，万方数据库或重庆维普等数据库中下载！”
[1] SLAMA C, ABDELLAOUI M. Structural characterization of the aged Inconel 718 [J]. Journal of alloys and compounds, 2000, 306(1/2): 277-284.
[2] ZHANG S, LIN X, WANG L, et al. Strengthening mechanisms in selective laser-melted Inconel 718 superalloy [J]. Materials Science and Engineering: A, 2021, 812: 141-145.
[3]ZHANG D, NIU W, CAO X, et al. Effect of standard heat treatment on the microstructure and mechanical properties of selective laser melting manufactured Inconel 718 superalloy [J]. Materials Science and Engineering: A, 2015, 644: 32-40.
[4]LI X, SHI J J, WANG C H, et al. Effect of heat treatment on microstructure evolution of Inconel 718 alloy fabricated by selective laser melting [J]. Journal of Alloys and Compounds, 2018, 764: 639-649.
[5]KUO C M, YANG Y T, BOR H Y, et al. Aging effects on the microstructure and creep behavior of Inconel 718 superalloy [J]. Materials Science and Engineering: A, 2009, 510: 289-294.
[6] 刘永长, 郭倩颖, 李冲, 等. Inconel 718高温合金中析出相演变研究进展 [J]. 金属学报, 2016, 52(10): 1259-1266.
[7]LU Y, WU S, GAN Y, et al. Study on the microstructure, mechanical property and residual stress of SLM Inconel-718 alloy manufactured by differing island scanning strategy [J]. Optics & Laser Technology, 2015, 75: 197-206.
[8]LI X, SHI J J, CAO G H, et al. Improved plasticity of Inconel 718 superalloy fabricated by selective laser melting through a novel heat treatment process [J]. Materials & Design, 2019, 180: 107915.
[9]AZADIAN S, WEI L Y, WARREN R. Delta phase precipitation in Inconel 718 [J]. Materials Characterization, 2004, 53(1): 7-16.
[10]CHANG S H.In situ TEM observation of γ′, γ ″and δ precipitations on Inconel 718 superalloy through HIP treatment [J]. Journal of Alloys and Compounds, 2009, 486(1/2): 716-721.
[11] THOMAS A, EL-WAHABI M, CABRERA J M, et al. High temperature deformation of Inconel 718 [J]. Journal of Materials Processing Technology, 2006, 177(1/2/3): 469-472.
[12]RIELLI V V, THESKA F, GODOR F, et al. Evolution of nanoscale precipitates during common Alloy 718 ageing treatments [J]. Materials & Design, 2021, 205: 109762.
[13]GHOSH S, YADAV S, DAS G. Study of standard heat treatment on mechanical properties of Inconel 718 using ball indentation technique [J]. Materials Letters, 2008, 62(17/18): 2619-2622.
[14]WAGNER H J, HALL A M. Physical metallurgy of alloy 718 [M]. Defense Metals Information Center, Battelle Memorial Institute, 1965.
[15]宋宜四, 高万夫, 王超, 等. 热处理工艺对 Inconel718 合金组织, 力学性能及耐蚀性能的影响 [J]. 材料工程, 2012 (6): 37-42.
[16]周元贵, 彭志方, 陈方玉, 等. IN718 合金时效后的组织及其典型元素分布特征 [J]. 金属热处理, 2009, 34 (6): 19-24.
[17]李荣斌, 姚枚, 刘文昌, 等. 直接时效工艺对 Inconel718 合金组织的影响 [J]. 金属热处理, 2002, 27(2): 21-22.
[18]刘永飞, 刘宏亮, 赵献益, 等. 固溶时效对 Inconel718 合金组织和力学性能的影响 [J]. 机械工程材料, 2016, 40(3): 49.
[19]张杰, 张群莉, 李栋, 等. δ时效处理对激光增材修复 Inconel 718 合金组织与性能的影响 [J]. 中国激光, 2020, 47(1): 0102001.
[20] HALL R C. The metallurgy of alloy 718 [J]. Journal of Basic Engineering, 1967, 89(3):511.
[21]DERIVATIVES V. Precipitation in alloy 718: a combined AEM and APFIM investigation, edited by EA Loria [J]. Warrendale, PA, TMS, 1991: 337.
[22]ZHANG Y, LAN L, ZHAO Y. Effect of precipitated phases on the mechanical properties and fracture mechanisms of Inconel 718 alloy [J]. Materials Science and Engineering: A, 2023: 144598.
[23]PEREIRA J M, LERCH B A. Effects of heat treatment on the ballistic impact properties of Inconel 718 for jet engine fan containment applications [J]. International Journal of Impact Engineering, 2001, 25(8): 715-733.
[24]JANG J, YIM J, LEE S H. Phase formation kinetics during heat treatments of Inconel 718 deposits based on cold metal transfer-based wire arc additive manufacturing [J]. Materials Characterization, 2022, 193: 112294.
[25]WANG W, CHEN Z, LU W, et al. Heat treatment for selective laser melting of Inconel 718 alloy with simultaneously enhanced tensile strength and fatigue properties [J]. Journal of Alloys and Compounds, 2022, 913: 165171.
[26]GALLMEYER T G, MOORTHY S, KAPPES B B, et al. Knowledge of process-structure-property relationships to engineer better heat treatments for laser powder bed fusion additive manufactured Inconel 718 [J]. Additive Manufacturing, 2020, 31: 100977.
[27] 高文杰, 桑利军, 王晋,等. 基于扫描电镜原位拉伸EBSD-DIC微观变形研究方法[J]. 电子显微学报, 2021，40（5）:589-594.
[28] 陈晓倩, 白朴存, 赵学平,等. 选区激光熔化GH4169合金微观组织及裂纹萌生扩展行为研究[J]. 电子显微学报, 2022,41(3):241-248.
[29] 丁青青, 李吉学, 张泽. 镍基单晶高温合金相界与界面位错的相互作用[J]. 电子显微学报, 2017, 36(2):5.
[30] GLADMAN T. Precipitation hardening in metals[J]. Materials Science and Technology: MST: A publication of the Institute of Metals, 1999(1):15.
[31] KULKARNI A, KRISHNAMURTHY K, DESHMUKH S, et al. Effect of particle size distribution on strength of precipitation-hardened alloys[J]. Journal of Materials Research, 2004, 19(9):2765-2773.
