<strong>Ta</strong>对一种抗热腐蚀镍基单晶高温合金长时热暴露组织和蠕变性能的影响

doi:10.11900/0412.1961.2022.00349

金属学报

2024, Vol. 60

Issue (2): 179-188 DOI: 10.11900/0412.1961.2022.00349

研究论文

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Ta对一种抗热腐蚀镍基单晶高温合金长时热暴露组织和蠕变性能的影响

刘静¹^,²^,³, 张思倩¹(

), 王栋², 王莉², 陈立佳¹

1 沈阳工业大学材料科学与工程学院沈阳 110870
2 中国科学院金属研究所沈阳 110016
3 中国科学技术大学材料科学与工程学院沈阳 110016

Effect of Ta on the Microstructure and Creep Properties of a Hot-Corrosion Resistant Ni-Based Single-Crystal Superalloy After Long-Term Exposure

LIU Jing¹^,²^,³, ZHANG Siqian¹(

), WANG Dong², WANG Li², CHEN Lijia¹

1 School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China
2 Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
3 School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China

引用本文:

刘静, 张思倩, 王栋, 王莉, 陈立佳. Ta对一种抗热腐蚀镍基单晶高温合金长时热暴露组织和蠕变性能的影响[J]. 金属学报, 2024, 60(2): 179-188.
Jing LIU, Siqian ZHANG, Dong WANG, Li WANG, Lijia CHEN. Effect of Ta on the Microstructure and Creep Properties of a Hot-Corrosion Resistant Ni-Based Single-Crystal Superalloy After Long-Term Exposure[J]. Acta Metall Sin, 2024, 60(2): 179-188.

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摘要:

为进一步提高燃机叶片的服役温度，获得综合性能更优的镍基单晶高温合金，本工作研究了Ta含量对镍基单晶高温合金在900℃长时热暴露过程中组织损伤和性能退化规律的影响。利用SEM和TEM-EDS分析了Ta含量对抗热腐蚀镍基单晶高温合金微观组织及900℃、275 MPa 蠕变性能的影响。通过对比相同热暴露时间的不同Ta含量合金(2Ta、5Ta和8Ta)组织发现，随Ta含量的增加，γ'相尺寸无明显变化，但立方度有所提高，γ基体中的三次γ'相数量减少。随Ta含量由2%增加到5%，除热暴露4000 h时2种合金γ'相体积分数较为接近外，其余热暴露时间下5Ta合金的γ'相体积分数均高于2Ta合金；Ta含量进一步增加至8%，热暴露不同时间后γ'相体积分数均有所增加。随热暴露时间的延长，3种合金的900℃、275 MPa蠕变性能变化趋势存在差异：2Ta合金热暴露0~4000 h无明显变化，热暴露8000 h后性能明显降低；5Ta和8Ta合金的持久寿命均随热暴露时间的延长先升高后降低，分别在热暴露500和2000 h时达到峰值。随Ta含量的增加，合金稳态蠕变速率不断降低、蠕变寿命明显延长、峰值蠕变寿命向后推移，同时蠕变断后γ'相筏化程度和筏排结构完整度明显提高。合金蠕变性能的提升归因于蠕变初始状态中γ'相体积分数的提高、蠕变过程中γ'相筏排结构完整度和厚度的增加等综合因素。

关键词 ： Ta, 镍基单晶高温合金, 长时热暴露, 长时蠕变

Abstract：

Innovative, massive gas turbines have emerged as critical equipment for achieving the goals of energy conservation and the development of new clean energy sources. As the inlet temperature of industrial gas turbines continues to rise, the high-temperature capabilities of hot corrosion-resistant single-crystal turbine blades should be enhanced. This work investigates the effects of Ta on the microstructural stability and creep properties of hot corrosion-resistant Ni-based single-crystal superalloys with varying Ta contents (2Ta, 5Ta, and 8Ta) during long-term thermal exposure at 900^oC. The findings revealed that after various thermal exposure times, the addition of Ta had no observable influence on the size of γ' precipitates, but it considerably increased the cubic degree of γ' precipitates and continuously decreased the number of tertiary γ' precipitates in γ matrix. With the increase of Ta content from 2% to 5%, the volume fraction of γ' precipitates of 5Ta alloy is higher than that of 2Ta alloy except that which is close to each other when thermal exposure at 4000 h. In addition, the volume fraction of γ' precipitates increased was higher than that of 2Ta and 5Ta alloys, as the Ta content increased from 5% to 8% after various thermal exposure times. The creep lives of the three alloys at 900^oC and 275 MPa exhibited different trends as thermal exposure time increased; there was no obvious fluctuation in the 2Ta alloy after thermal exposure from 0 to 4000 h, but it significantly decreased after thermal exposure at 8000 h; the creep lives of the 5Ta and 8Ta alloys increased initially and then decreased, and the peak creep lives were 500 and 2000 h, respectively. With the addition of Ta, the steady-state creep rate continuously decreased, the creep life significantly increased, and the peak creep life shifted backward. Simultaneously, the degree and structural integrity of the rafted γ' precipitates after creep rupture increased steadily. Hence, the improvement of the creep life of the alloys was attributed to a combination of factors, such as the increase in the volume fraction of the γ' precipitates in the initial state of the creep, the increase in rafted structural integrity, and thickness of the rafted γ' precipitates during the creep process.

Key words： Ta Ni-based single-crystal superalloy long-term thermal exposure long-term creep

收稿日期: 2022-07-19

ZTFLH:

TG132.3

基金资助:国家自然科学基金项目(51631008);国家自然科学基金项目(52071219);国家科技重大专项项目(J2019-IV-0006-0074);国家科技重大专项项目(2017-VI-0019-0091);国家科技重大专项项目(J2019-VI-0010-0124);航空发动机及燃气轮机基础科学中心项目(P2021-A-IV-001-002)

通讯作者: 张思倩，sqzhang@alum.imr.ac.cn，主要从事工程合金损伤行为的研究

Corresponding author: ZHANG Siqian, professor, Tel: (024)25496339, E-mail: sqzhang@alum.imr.ac.cn

作者简介: 刘静，女，1995年生，博士生

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https://www.ams.org.cn/CN/10.11900/0412.1961.2022.00349 或 https://www.ams.org.cn/CN/Y2024/V60/I2/179

表1 实验用抗热腐蚀镍基单晶高温合金的成分 (mass fraction / %)

表2 抗热腐蚀镍基单晶高温合金的热处理参数

图1 热处理后3种合金横截面的SEM像

图2 热处理后3种合金横截面枝晶干的SEM像

图3 3种合金中元素在γ和γ'相中的分配比

图4 900℃热暴露不同时间后3种合金枝晶干的SEM像

图5 3种合金在900℃热暴露不同时间时枝晶干γ'相尺寸和平均体积分数

图6 900℃热暴露不同时间后3种合金在900℃、275 MPa 条件下的应变-时间曲线

图7 900℃热暴露不同时间后3种合金900℃、275 MPa 蠕变寿命的变化

图8 3种合金在900℃热暴露不同时间后在900℃、275 MPa 条件下蠕变断裂后纵截面枝晶干的SEM像

图9 900℃热暴露不同时间后5Ta和8Ta合金900℃、275 MPa 条件下蠕变断裂后纵截面枝晶干的γ' 筏排厚度和γ基体通道宽度

1	Peng J Q, Zhang H T, Li Y F. Review of blade materials for IGT [J]. Proc. Eng., 2015, 130: 668 doi: 10.1016/j.proeng.2015.12.295
2	Chang J C, Yun Y H, Choi C, et al. Failure analysis of gas turbine buckets [J]. Eng. Fail. Anal., 2003, 10: 559 doi: 10.1016/S1350-6307(03)00037-2
3	Singh K. Advanced materials for land based gas turbines [J]. Trans. Indian Inst. Met., 2014, 67: 601 doi: 10.1007/s12666-014-0398-3
4	Acharya M V, Fuchs G E. The effect of long-term thermal exposures on the microstructure and properties of CMSX-10 single crystal Ni-base superalloys [J]. Mater. Sci. Eng., 2004, A381: 143
5	Wu J J, Jiang X W, Wang Y, et al. Effects of Ta on microstructural stability and mechanical properties of hot corrosion resistant Ni-based single crystal superalloys during long-term thermal exposure [J]. Mater. Sci. Eng., 2021, A806: 140829
6	Huang T W, Lu J, Xu Y, et al. Effects of rhenium and tantalum on microstructural stability of hot-corrosion resistant single crystal superalloys aged at 900^oC [J]. Acta. Metall. Sin., 2019, 55: 1427
6	黄太文, 卢晶, 许瑶等. Re和Ta对抗热腐蚀单晶高温合金900℃长期时效组织稳定性的影响 [J]. 金属学报, 2019, 55: 1427
7	Wang X G, Li J R, Liu S Z, et al. Microstructural evolution of an experimental third generation single crystal superalloy after long-term thermal exposure at 1100^oC [J]. Rare Met. Mater. Eng., 2017, 46: 646 doi: 10.1016/S1875-5372(17)30111-X
8	Wang J, Zhou L Z, Sheng L Y, et al. The microstructure evolution and its effect on the mechanical properties of a hot-corrosion resistant Ni-based superalloy during long-term thermal exposure [J]. Mater. Des., 2012, 39: 55 doi: 10.1016/j.matdes.2012.02.020
9	Tian S G, Wang M G, Li T, et al. Influence of TCP phase and its morphology on creep properties of single crystal nickel-based superalloys [J]. Mater. Sci. Eng., 2010, A527: 5444
10	Qin X Z, Guo J T, Yuan C, et al. Effects of long-term thermal exposure on the microstructure and properties of a cast Ni-base superalloy [J]. Metall. Mater. Trans., 2007, 38A: 3014
11	Liu J L, Jin T, Yu J J, et al. Effect of thermal exposure on stress rupture properties of a Re bearing Ni-base single crystal superalloy [J]. Mater. Sci. Eng., 2010, A527: 890
12	Xu J H, Li L F, Liu X G, et al. Thermal-stress coupling effect on microstructure evolution of a fourth-generation nickel-based single-crystal superalloy at 1100^oC [J]. Acta Metall. Sin., 2021, 57: 205
12	徐静辉, 李龙飞, 刘心刚等. 热力耦合对一种第四代镍基单晶高温合金1100℃蠕变组织演变的影响 [J].金属学报, 2021, 57: 205
13	Gao S, Hou J S, Yang F, et al. Effect of Ta on microstructural evolution and mechanical properties of a solid-solution strengthening cast Ni-based alloy during long-term thermal exposure at 700^oC [J]. J. Alloys Compd., 2017, 729: 903 doi: 10.1016/j.jallcom.2017.09.194
14	Ritter N C, Schesler E, Müller A, et al. On the influence of Ta and Ti on heat-treat ability and γ /γ'-partitioning of high W containing Re-free nickel-based superalloys[J]. Adv. Eng. Mater., 2017, 19: 1700150 doi: 10.1002/adem.v19.8
15	Wen T, Li J G, Liu L R, et al. Effect of long-term aging on microstructure evolution and creep properties of Ni-based single crystal superalloy [J]. Rare Met. Mater. Eng., 2012, 41: 230
16	Zhang H, Liang Y F, Ru Y, et al. Effect of thermal exposure on the stress-rupture life and microstructure of a low Re-containing single crystal alloy [J]. Prog. Nat. Sci.: Mater. Int., 2015, 25: 84 doi: 10.1016/j.pnsc.2015.01.010
17	Booth-Morrison C, Noebe R D, Seidman D N. Effects of tantalum on the temporal evolution of a model Ni-Al-Cr superalloy during phase decomposition [J]. Acta. Mater., 2009, 57: 909 doi: 10.1016/j.actamat.2008.10.029
18	Zheng L, Zhang G Q, Lee T L, et al. The effects of Ta on the stress rupture properties and microstructural stability of a novel Ni-base superalloy for land-based high temperature applications [J]. Mater. Des., 2014, 61: 61 doi: 10.1016/j.matdes.2014.04.055
19	Yun D W, Seo S M, Jeong H W, et al. Effect of refractory elements and Al on the high temperature oxidation of Ni-base superalloys and modelling of their oxidation resistance [J]. J. Alloys Compd., 2017, 710: 8 doi: 10.1016/j.jallcom.2017.03.179
20	Zheng L, Gu C Q, Yu B Z, et al. High-temperature oxidation behavior of low Cr and high W content cast Ni-base superalloys and effect of Ta alloying [J]. J. Aeronaut. Mater., 2005, 25(5): 1
20	郑亮, 谷臣清, 于保正等. 低Cr高W铸造镍基高温合金的高温氧化行为及Ta的合金化作用 [J]. 航空材料学报, 2005, 25(5): 1
21	Chang J X, Wang D, Zhang G, et al. Interaction of Ta and Cr on Type-I hot corrosion resistance of single crystal Ni-base superalloys [J]. Corros. Sci., 2017, 117: 35 doi: 10.1016/j.corsci.2017.01.011
22	Fryburg G C, Stearns C A, Kohl F J. Mechanism of beneficial effect of tantalum in hot corrosion of nickel-base superalloys [J]. J. Electrochem. Soc., 1997, 124: 1147 doi: 10.1149/1.2133502
23	Fryburg G C, Kohl F J, Stearns C A. Chemical reactions involved in the initiation of hot corrosion of IN-738 [J]. J. Electrochem. Soc., 1984, 131: 2985 doi: 10.1149/1.2115455
24	Van Sluytman J S, Pollock T M. Optimal precipitate shapes in nickel-base γ-γ' alloys [J]. Acta Mater., 2012, 60: 1771 doi: 10.1016/j.actamat.2011.12.008
25	Pan J S, Tong J M, Tian M B. Fundamentals of Materials Science [M]. Beijing: Tsinghua University Press, 1998: 550
25	潘金生, 仝健民, 田民波. 材料科学基础 [M]. 北京: 清华大学出版社, 1998: 550
26	Dubiel B, Czyrska-Filemonowicz A. TEM analyses of microstructure evolution in ex-service single crystal CMSX-4 gas turbine blade [J]. Solid State Phenom., 2012, 186: 139 doi: 10.4028/www.scientific.net/SSP.186
27	LUKÁŠ P, ČADEK J, Kunz L, et al. Creep resistance of single crystal superalloys CMSX-4 and CM186LC [J]. Kovove Mater., 2005, 43: 5
28	Jacques A, Trehorel R, Schenk T. High-temperature dislocation climb in the γ' rafts of single-crystal superalloys: The hypojournal of a control by dislocation entry into the rafts [J]. Metall. Mater. Trans., 2018, 49A: 4110
29	Henderson P, Berglin L, Jansson C. On rafting in a single crystal nickel-base superalloy after high and low temperature creep [J]. Scr. Mater., 1998, 40: 229 doi: 10.1016/S1359-6462(98)00348-0
30	Pollock T M, Argon A S. Directional coarsening in nickel-base single crystals with high volume fractions of coherent precipitates [J]. Acta Metall. Mater., 1994, 42: 1859 doi: 10.1016/0956-7151(94)90011-6
31	Pierret S, Etter T, Evans A, et al. Origin of localized rafting in Ni-based single crystal turbine blades before service and its influence on the mechanical properties [J]. Acta Mater., 2013, 61: 1478 doi: 10.1016/j.actamat.2012.11.024
32	Murakumo T, Kobayashi T, Koizumi Y, et al. Creep behaviour of Ni-base single-crystal superalloys with various γ' volume fraction [J]. Acta. Mater., 2004, 52: 3737 doi: 10.1016/j.actamat.2004.04.028
33	Qiu Y Y. The effect of the lattice strains on the directional coarsening of γ' precipitates in Ni-based alloys [J]. J. Alloys Compd., 1996, 232: 254 doi: 10.1016/0925-8388(95)01914-6
34	Sun Y J, Zhang J. Effects of Ta on microstructure and creep mechanism of a Ni-base single crystal superalloy [J]. Rare Met. Mater. Eng., 2012, 41: 1615
34	孙跃军, 张军. Ta对一种镍基单晶合金微观组织及蠕变机制的影响 [J]. 稀有金属材料与工程, 2012, 41: 1615
35	Kondo Y, Kitazaki N, Namekata J, et al. Effect of morphology of γ' phase on creep resistance of a single crystal nickel-based superalloy, CMSX-4 [A]. Superalloys 1996 [C]. Tokyo: TMS, 1996: 297

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