近 α 耐高温钛合金的显微组织和力学性能在热处理过程中的演变规律

马小昭; 相志磊; 李涛; 陈怡兰; 刘莹莹; 陈子勇; 舒群

doi:10.1007/s12613-021-2248-8

Volume 29 Issue 8

Aug. 2022

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文章导航 > 矿物冶金与材料学报（英文） > 2022 > 29(8): 1596-1607

Xiaozhao Ma, Zhilei Xiang, Tao Li, Yilan Chen, Yingying Liu, Ziyong Chen, and Qun Shu, Evolution laws of microstructures and mechanical properties during heat treatments for near-α high-temperature titanium alloys, Int. J. Miner. Metall. Mater., 29(2022), No. 8, pp. 1596-1607. https://doi.org/10.1007/s12613-021-2248-8

Cite this article as:

Xiaozhao Ma, Zhilei Xiang, Tao Li, Yilan Chen, Yingying Liu, Ziyong Chen, and Qun Shu, Evolution laws of microstructures and mechanical properties during heat treatments for near-α high-temperature titanium alloys, Int. J. Miner. Metall. Mater., 29(2022), No. 8, pp. 1596-1607. https://doi.org/10.1007/s12613-021-2248-8

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研究论文

近 α 耐高温钛合金的显微组织和力学性能在热处理过程中的演变规律

1)
北京工业大学材料与制造学部, 北京 100124
2)
国家电网平高集团有限公司, 平顶山 467000
3)
中国航空制造技术研究院, 北京 100024

通讯作者:
陈子勇 E-mail: czy@bjut.edu.cn

中文摘要

耐高温钛合金具有比强度高、比模量高和高温性能优异的优点，主要应用在高性能航空发动机叶片和叶盘，超声速巡航导弹壳体和军用柴油发动机气门等领域。然而，目前对新型耐650℃高温钛合金热处理过程中微纳结构和力学性能演变的研究尚少。本文通过XRD、SEM、EBSD、TEM和拉伸试验等方法研究了热处理过程中合金的显微组织、力学性能和断裂特征的演变规律。研究表明，随固溶温度提升，初生 α 相含量逐渐较小，β 转变组织含量逐渐增加。β 转变组织内部析出大量层片状 α 晶粒，层片的宽度随固溶温度的提升逐渐增加。锻态合金内部既存在尺寸较大的等轴和棒状硅化物，也析出纳米尺寸的硅化物。元素分析表明，大尺寸硅化物或许为(Ti, Zr, Nb)₅Si₃ 和 (Ti, Zr, Nb)₆Si₃。热处理后，尺寸较小的棒状硅化物在残余 β 相中析出，它们与 α/β 界面近似为45°。热处理态合金中的残余 β 相呈半连续状。合金经980°C/1 h固溶和700°C/4 h时效处理后表现出最优的室温和高温（650°C）力学性能的匹配。

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Research Article

Evolution laws of microstructures and mechanical properties during heat treatments for near-α high-temperature titanium alloys

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Abstract

Abstract

Evolution laws of microstructures, mechanical properties, and fractographs after different solution temperatures were investigated through various analysis methods. With the increasing solution temperatures, contents of the primary α phase decreased, and contents of transformed β structures increased. Lamellar α grains dominated the characteristics of transformed β structures, and widths of secondary α lamellas increased monotonously. For as-forged alloy, large silicides with equiaxed and rod-like morphologies, and nano-scale silicides were found. Silicides with large sizes might be (Ti, Zr, Nb)₅Si₃ and (Ti, Zr, Nb)₆Si₃. Rod-like silicides with small sizes precipitated in retained β phase, exhibiting near 45° angles with α/β boundaries. Retained β phases in as-heat treated alloys were incontinuous. 980STA exhibited an excellent combination of room temperature (RT) and 650°C mechanical properties. Characteristics of fracture surfaces largely depended on the evolutions of microstructures. Meanwhile, silicides promoted the formation of mico-voids.
- solution temperatures;
- microstructures;
- mechanical properties;
- fractographs;
- silicides

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[1]	X.J. Jiang, R. Jing, C.Y. Liu, M.Z. Ma, and R.P. Liu, Structure and mechanical properties of TiZr binary alloy after Al addition, Mater. Sci. Eng. A, 586(2013), p. 301. doi: 10.1016/j.msea.2013.08.029
[2]	P. Parvizian, M. Morakabati, and S. Sadeghpour, Effect of hot rolling and annealing temperatures on the microstructure and mechanical properties of SP-700 alloy, Int. J. Miner. Metall. Mater., 27(2020), No. 3, p. 374. doi: 10.1007/s12613-019-1922-6
[3]	J.C. Williams and E.A. Starke Jr, Progress in structural materials for aerospace systems, Acta Mater., 51(2003), No. 19, p. 5775. doi: 10.1016/j.actamat.2003.08.023
[4]	L. Yang, B.Y. Wang, J.G. Lin, H.J. Zhao, and W.Y. Ma, Ductile fracture behavior of TA15 titanium alloy at elevated temperatures, Int. J. Miner. Metall. Mater., 22(2015), No. 10, p. 1082. doi: 10.1007/s12613-015-1171-2
[5]	R. Boyer, G. Welsch, and E. Collings, Materials Properties Handbook: Titanium Alloys, 1994.
[6]	K. Prasad, R. Sarkar, P. Ghosal, D.V.V. Satyanarayana, S.V. Kamat, and T.K. Nandy, Tensile and creep properties of thermomechanically processed boron modified Timetal 834 titanium alloy, Mater. Sci. Eng. A, 528(2011), No. 22-23, p. 6733. doi: 10.1016/j.msea.2011.05.069
[7]	V.K. Chandravanshi, A. Bhattacharjee, S.V. Kamat, and T.K. Nandy, Influence of thermomechanical processing and heat treatment on microstructure, tensile properties and fracture toughness of Ti–1100–0.1B alloy, J. Alloys Compd., 589(2014), p. 336. doi: 10.1016/j.jallcom.2013.11.014
[8]	S.A.A. Shams, S. Mirdamadi, S.M. Abbasi, Y. Lee, and C.S. Lee, Coarsening kinetics of primary alpha in a near alpha titanium alloy, J. Alloys Compd., 735(2018), p. 1769. doi: 10.1016/j.jallcom.2017.11.296
[9]	Q.J. Wang, J.R. Liu, and R. Yang, High temperature titanium alloys: Status and perspective, J. Aeronaut. Mater., 34(2014), No. 4, p. 1. doi: 10.11868/j.issn.1005-5053.2014.4.001
[10]	P.L. Narayana, S.W. Kim, J.K. Hong, N.S. Reddy, and J.T. Yeom, Tensile properties of a newly developed high-temperature titanium alloy at room temperature and 650°C, Mater. Sci. Eng. A, 718(2018), p. 287. doi: 10.1016/j.msea.2018.01.113
[11]	T. Li, L.H. Chai, S.H. Shi, et al., Effect of near-isothermal forging temperature on the microstructure and mechanical properties of near α high temperature titanium alloy, Mater. Sci. Forum, 898(2017), p. 579. doi: 10.4028/www.scientific.net/MSF.898.579
[12]	P. Han, B.L. Li, J.M. Yin, T. Liu, and Z.R. Nie, Effect of Er on creep properties of a near-α high temperature titanium alloy, Sci. Technol. Eng., 12(2012), No. 17, p. 4124.
[13]	X.Z. Ma, L.H. Chai, Y.Y. Liu, et al., TiB whiskers stimulated the dynamic recrystallization behavior, J. Alloys Compd., 812(2020), art. No. 152152. doi: 10.1016/j.jallcom.2019.152152
[14]	Z.B. Zhao, Q.J. Wang, J.R. Liu, and R. Yang, Effect of heat treatment on the crystallographic orientation evolution in a near-α titanium alloy Ti60, Acta Mater., 131(2017), p. 305. doi: 10.1016/j.actamat.2017.04.007
[15]	X.Z. Ma, Z.L. Xiang, M.Z. Ma, Y.P. Cui, W.M. Ren, Z.T. Wang, J.C. Huang, and Z.Y. Chen, Investigation of microstructures, textures, mechanical properties and fracture behaviors of a newly developed near α titanium alloy, Mater. Sci. Eng. A, 775(2020), art. No. 138996. doi: 10.1016/j.msea.2020.138996
[16]	S.X. Liang, M.Z. Ma, R. Jing, X.Y. Zhang, and R.P. Liu, Microstructure and mechanical properties of hot-rolled ZrTiAlV alloys, Mater. Sci. Eng. A, 532(2012), p. 1. doi: 10.1016/j.msea.2011.10.053
[17]	Y. Yue, L.Y. Dai, H. Zhong, C.L. Tan, M.Z. Ma, X.Y. Zhang, and R.P. Liu, Enhanced mechanical properties for mill-annealed Ti–20Zr–6.5Al–4V alloy with a fine equiaxed microstructure, Mater. Sci. Eng. A, 678(2016), p. 286. doi: 10.1016/j.msea.2016.09.116
[18]	S.T. He, W.D. Zeng, J.W. Xu, and W. Chen, The effects of microstructure evolution on the fracture toughness of BT-25 titanium alloy during isothermal forging and subsequent heat treatment, Mater. Sci. Eng. A, 745(2019), p. 203. doi: 10.1016/j.msea.2018.12.062
[19]	J.R. Wood, P.A. Russo, M.F. Welter, and E.M. Crist, Thermomechanical processing and heat treatment of Ti–6Al–2Sn–2Zr–2Cr–2Mo–Si for structural applications, Mater. Sci. Eng. A, 243(1998), No. 1-2, p. 109. doi: 10.1016/S0921-5093(97)00787-9
[20]	J.X. Li, L.Q. Wang, J.N. Qin, Y.F. Chen, W.J. Lu, and D. Zhang, Effect of TRIPLEX heat treatment on tensile properties of in situ synthesized (TiB + La₂O₃)/Ti composite, Mater. Sci. Eng. A, 527(2010), No. 21-22, p. 5811. doi: 10.1016/j.msea.2010.05.065
[21]	S.M.C. van Bohemen, A. Kamp, R.H. Petrov, L.A.I. Kestens, and J. Sietsma, Nucleation and variant selection of secondary α plates in a β Ti alloy, Acta Mater., 56(2008), No. 20, p. 5907. doi: 10.1016/j.actamat.2008.08.016
[22]	S. Mironov, M. Murzinova, S. Zherebtsov, G.A. Salishchev, and S.L. Semiatin, Microstructure evolution during warm working of Ti–6Al–4V with a colony-α microstructure, Acta Mater., 57(2009), No. 8, p. 2470. doi: 10.1016/j.actamat.2009.02.016
[23]	J.X. Li, L.Q. Wang, J.N. Qin, Y.F. Chen, W.J. Lu, and D. Zhang, The effect of heat treatment on thermal stability of Ti matrix composite, J. Alloys Compd., 509(2011), No. 1, p. 52. doi: 10.1016/j.jallcom.2010.09.005
[24]	A.K. Singh, C. Ramachandra, and V. Singh, Orientation relationship between matrix phases and silicide S₂ in alloy Ti–6Al–1.6Zr–3.3Mo–0.3Si, J. Mater. Sci. Lett., 11(1992), No. 4, p. 218. doi: 10.1007/BF00741426
[25]	W.J. Jia, W.D. Zeng, and H.Q. Yu, Effect of aging on the tensile properties and microstructures of a near-alpha titanium alloy, Mater. Des., 58(2014), p. 108. doi: 10.1016/j.matdes.2014.01.063
[26]	C.J. Zhang, X. Li, S.Z. Zhang, L.H. Chai, Z.Y. Chen, F.T. Kong, and Y.Y. Chen, Effects of direct rolling deformation on the microstructure and tensile properties of the 2.5 vol% (TiB_w+TiC_p)/Ti composites, Mater. Sci. Eng. A, 684(2017), p. 645. doi: 10.1016/j.msea.2016.12.113

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近 α 耐高温钛合金的显微组织和力学性能在热处理过程中的演变规律

中文摘要

Evolution laws of microstructures and mechanical properties during heat treatments for near-α high-temperature titanium alloys

Abstract

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