Evolution Behavior of Complex Precipitation Phases in Highly Alloyed GH4151 Superalloy
Received date: 2021-09-03
Revised date: 2021-12-13
Online published: 2022-06-20
Supported by
National Key Laboratory of Advanced High-Temperature Materials Open Fund and Fundamental Research Funds for the Central Universities(FRF-TP-19-038A2)
Designing high-performance aeroengine is important for development in the aviation industry. One of the key components is turbine disk material that can operate at 800oC. Among various methods for strengthening alloys, increasing the alloying degree is important, and GH4151 is one of the typical alloys with a high alloying degree. It comprises a large number of refractory metal elements and γ'-forming elements. OM, SEM, and JMatPro software were used to study the sensitivity of GH4151 microstructure evolution during heat treatment processes. The results show that a high alloying degree produces a complex microstructure with low-melting phases, such as Laves, γ/γ′ eutectic, and η phases. Due to the difference in incipient melting temperature of each precipitated phase, a three-stage heat treatment was developed to effectively eliminate the harmful phases in the alloy. The contents of segregation elements Nb and Ti in the as-cast GH4151 alloy have an obvious influence on the incipient melting temperature, whereas the effect of Mo content is relatively slight, and that of W content is not obvious. Decreasing Ti content while increasing Nb and Mo contents could reduce the incipient melting temperature of the η phase. Furthermore, increasing Ti and Mo contents while decreasing Nb content could reduce the incipient melting temperature of Laves phase. A large amount of γ'-forming elements contributes to the cooling rate sensitivity of γ′ phase evolution. 15oC/min is the critical value for the irregular growth of the γ' phase in the GH4151 alloy. When compared to alloys with low γ′-forming elements content, the γ′ phase in GH4151 alloy has a larger size when the cooling rate is > 15oC/min, and exhibits an irregular shape when the cooling rate is < 15oC/min. Thus, a high alloying degree contributes to the complex and sensitive microstructure evolution behavior of GH4151 alloy.
WANG Fa , JIANG He , DONG Jianxin . Evolution Behavior of Complex Precipitation Phases in Highly Alloyed GH4151 Superalloy[J]. Acta Metall Sin, 2023 , 59(6) : 787 -796 . DOI: 10.11900/0412.1961.2021.00375
| 1 | Xiang X M, Jiang H, Dong J X, et al. As-cast microstructure characteristic and homogenization of a newly developed hard-deformed Ni-based superalloy GH4975 [J]. Acta Metall. Sin., 2020, 56: 988 |
| 向雪梅, 江 河, 董建新 等. 难变形高温合金GH4975的铸态组织及均匀化 [J]. 金属学报, 2020, 56: 988 | |
| 2 | Lv S M. Research on hot deformation behavior and microstructure-properties control of GH4151 alloy [D]. Beijing: University of Science and Technology Beijing, 2021 |
| 吕少敏. GH4151合金高温变形行为及组织与性能控制研究 [D]. 北京: 北京科技大学, 2021 | |
| 3 | Zhang B J, Huang S, Zhang W Y, et al. Recent development of nickel-based disc alloys and corresponding cast-wrought processing techniques [J]. Acta Metall. Sin., 2019, 55: 1095 |
| 张北江, 黄 烁, 张文云 等. 变形高温合金盘材及其制备技术研究进展 [J]. 金属学报, 2019, 55: 1095 | |
| 4 | Lv S M, Jia C L, He X B, et al. Superplastic deformation and dynamic recrystallization of a novel disc superalloy GH4151 [J]. Materials, 2019, 12: 3667 |
| 5 | Zhao X B, Dang Y Y, Yin H F, et al. Thermodynamic calculations of precipitation of TCP phase and carbide phase of Ni-Fe base superalloys for ultra-supercritical power plants [J]. J. Mater. Eng., 2015, 43(5): 38 |
| 赵新宝, 党莹樱, 尹宏飞 等. 超超临界电站用镍铁基高温合金TCP相和碳化物相析出的热力学计算 [J]. 材料工程, 2015, 43(5):38 | |
| 6 | Li X X, Jia C L, Zhang Y, et al. Segregation and homogenization for a new nickel-based superalloy [J]. Vacuum, 2020, 177: 109379 |
| 7 | Tan Y G, Liu F, Zhang A W, et al. Element segregation and solidification behavior of a Nb, Ti, Al Co-strengthened superalloy ЭК151 [J]. Acta Metall. Sin. (Engl. Lett.), 2019, 32: 1298 |
| 8 | Tan Y G. Investigation of solidification and high-temperature deformation behavior of Ni-base alloy ЭК151 [D]. Shenyang: University of Science and Technology of China (Institute of Metal Research, Chinese Academy of Sciences), 2019 |
| 谭远过. 新型镍基高温合金ЭК151凝固偏析及高温变形行为研究 [D]. 沈阳: 中国科学技术大学(中国科学院金属研究所), 2019 | |
| 9 | Bi Z N, Qu J L, Du J H, et al. Segregation behavior and investigation on homogenization for a new difficult-to-deform superalloy ЭК151 ingot [J]. J. Iron Steel Res., 2011, 23(): 263 |
| 毕中南, 曲敬龙, 杜金辉 等. 新型难变形高温合金ЭК151的偏析行为及均匀化工艺研究 [J]. 钢铁研究学报, 2011, 23(): 263 | |
| 10 | Winterton R H S. Newton's law of cooling [J]. Contemp. Phys., 1999, 40: 205 |
| 11 | Zhao G D. Effect of B and C on solidification segregation and hot ductility of U720Li alloy [D]. Shenyang: University of Science and Technology of China (Institute of Metal Research, Chinese Academy of Sciences), 2017 |
| 赵广迪. B和C对U720Li合金凝固偏析和热加工塑性的影响 [D]. 沈阳: 中国科学技术大学(中国科学院金属研究所), 2017 | |
| 12 | Qu J L, Yi C S, Chen J W, et al. Research progress of precipitated phase in GH4720Li superalloy [J]. J. Mater. Eng., 2020, 48(8): 73 |
| 曲敬龙, 易出山, 陈竞炜 等. GH4720Li合金中析出相的研究进展 [J]. 材料工程, 2020, 48(8): 73 | |
| 13 | Wang T, Wan Z P, Li Z, et al. Effect of heat treatment parameters on microstructure and hot workability of as-cast fine grain ingot of GH4720Li alloy [J]. Acta Metall. Sin., 2020, 56: 182 |
| 王 涛, 万志鹏, 李 钊 等. 热处理工艺对GH4720Li合金细晶铸锭组织与热加工性能的影响 [J]. 金属学报, 2020, 56: 182 | |
| 14 | Liu S H, Si J Y, Chen L. Effect of thermal processing on critical grain growth of extruded FGH4096 alloy [J]. Chin. J. Nonferrous Met., 2020, 30: 1317 |
| 刘松浩, 司家勇, 陈 龙. 热加工工艺对挤压态FGH4096合金临界晶粒长大的影响 [J]. 中国有色金属学报, 2020, 30: 1317 | |
| 15 | Wang D, Liu Z, Wang J G, et al. Study on microstructure and properties of shaped ring parts for super alloy GH4738 [J]. Forg. Stamp. Technol., 2020, 45(5): 128 |
| 王 丹, 刘 智, 王建国 等. GH4738高温合金异形环件组织与性能研究 [J]. 锻压技术, 2020, 45(5): 128 | |
| 16 | Yan X F, Dong J X, Shi Z X, et al. Solidification and segregation behavior of nickel-based superalloy GH4282 [J]. Rare Met. Mater. Eng., 2019, 48: 3183 |
| 颜晓峰, 董建新, 石照夏 等. 镍基高温合金GH4282的凝固和偏析行为 [J]. 稀有金属材料与工程, 2019, 48: 3183 | |
| 17 | Radis R, Schaffer M, Albu M, et al. Multimodal size distributions of γ′ precipitates during continuous cooling of UDIMET 720 Li [J]. Acta Mater., 2009, 57: 5739 |
| 18 | Semiatin S, Zhang F, Tiley J, et al. A comparison of the precipitation behavior in PM γ-γ' nickel-base superalloys [J]. Mater. High. Temp., 2016, 33: 301 |
| 19 | Xu C, Liu F, Huang L, et al. Dependence of creep performance and microstructure evolution on solution cooling rate in a polycrystalline superalloy [J]. Metals, 2018, 8: 4 |
| 20 | Shin K Y, Kim J H, Terner M, et al. Effects of heat treatment on the microstructure evolution and the high-temperature tensile properties of Haynes 282 superalloy [J]. Mater. Sci. Eng., 2019, A751: 311 |
| 21 | Masoumi F, Shahriari D, Jahazi M, et al. Kinetics and mechanisms of γ' reprecipitation in a Ni-based superalloy [J]. Sci. Rep., 2016, 6: 28650 |
| 22 | Kong D C, Dong C F, Ni X Q, et al. High-throughput fabrication of nickel-based alloys with different Nb contents via a dual-feed additive manufacturing system: Effect of Nb content on microstructural and mechanical properties [J]. J. Alloys Compd., 2019, 785: 826 |
| 23 | Lopez-Galilea I, Ko?mann J, Kostka A, et al. The thermal stability of topologically close-packed phases in the single-crystal Ni-base superalloy ERBO/1 [J]. J. Mater. Sci., 2016, 51: 2653 |
| 24 | Jiang H, Dong J X, Zhang M C, et al. Development of typical hard-to-deform nickel-base superalloy for turbine disk served above 800oC [J]. Aeron. Manuf. Technol., 2021, 64(1): 62 |
| 江 河, 董建新, 张麦仓 等. 800℃以上服役涡轮盘用难变形镍基高温合金研究进展 [J]. 航空制造技术, 2021, 64(1): 62 | |
| 25 | Yoo Y S. Morphological instability of spherical γ′ precipitates in a nickel base superalloy [J]. Scr. Mater., 2005, 53: 81 |
| 26 | Henry M F, Yoo Y S, Yoon D Y, et al. The dendritic growth of γ′ precipitates and grain boundary serration in a model nickel-base superalloy [J]. Metall. Mater. Trans., 1993, 24A: 1733 |
| 27 | Krutz N, Shen C, Karadge M, et al. An approach toward understanding unstable gamma prime precipitate evolution and its effect on properties [A]. Superalloys 2020: Proceedings of the 14th International Symposium on Superalloys [C]. Cham: Springer, 2020: 691 |
| 28 | Zhang L, Li D, Qu X H, et al. Microstructure and tensile properties optimization of MIM418 superalloy by heat treatment [J]. J. Mater. Process. Technol., 2016, 227: 71 |
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