热处理对新型<strong>Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr</strong>合金力学性能的影响

doi:10.11901/1005.3093.2023.532

材料研究学报

2024, Vol. 38

Issue (7): 519-528 DOI: 10.11901/1005.3093.2023.532

研究论文

本期目录 | 过刊浏览

热处理对新型Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr合金力学性能的影响

彭文飞¹^,²^,³, 黄巧东¹^,², Moliar Oleksandr¹^,², 董超琪¹^,², 汪小锋¹^,³(

)

^1.宁波大学机械工程与力学学院宁波 315211
^2.宁波大学浙江省零件轧制成形技术研究重点实验室宁波 315211
^3.宁波大学冲击与安全工程教育部重点实验室宁波 315211

Effect of Heat Treatment on Mechanical Properties of a Novel Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr Alloy

PENG Wenfei¹^,²^,³, HUANG Qiaodong¹^,², Moliar Oleksandr¹^,², DONG Chaoqi¹^,², WANG Xiaofeng¹^,³(

)

^1.Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
^2.Key Laboratory of Part Rolling Technology, Ningbo University, Ningbo 315211, China
^3.Key Laboratory of Impact and Safety Engineering, Ministry of Education, Ningbo University, Ningbo 315211, China

引用本文:

彭文飞, 黄巧东, Moliar Oleksandr, 董超琪, 汪小锋. 热处理对新型Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr合金力学性能的影响[J]. 材料研究学报, 2024, 38(7): 519-528.
Wenfei PENG, Qiaodong HUANG, Oleksandr Moliar, Chaoqi DONG, Xiaofeng WANG. Effect of Heat Treatment on Mechanical Properties of a Novel Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr Alloy[J]. Chinese Journal of Materials Research, 2024, 38(7): 519-528.

全文: PDF(13396 KB) HTML

摘要:

研究了固溶、固溶+单级时效和固溶+双级时效三种热处理制度对Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr合金的微观组织和力学性能的影响。结果表明，这种合金热处理前的组织为双态组织，由初生α_p相、次生α_s相和β相组成，其中初生α_p相的体积分数为22%，次生α_s相的体积分数为21%；在双相区固溶后，合金原来的热轧态α_p和α_s相部分转变为β相，其组织由亚稳β相、等轴状初生α_p相和粗大片状的次生α_s相组成；单级时效后，β相中析出了大量均匀分布的纳米细针状次生α_s相；双级时效后α相的体积分数显著提高，随着时效时间的增加初生α相和次生α相的晶粒尺寸逐渐增大。准静态拉伸实验结果表明，与热轧态试样相比双相区固溶态试样的延伸率显著提高，但是屈服强度明显降低；单级时效后试样的强度显著提高，强度-塑性平衡更佳；与热轧态试样相比，双级时效后试样的延伸率有所降低，随着时效时间的增加合金的强度降低而延伸率提高。用加工硬化率曲线解释了不同热处理的钛合金应变硬化率的变化趋势，并基于实验结果拟合了修正的Hall-Petch模型，与实验结果吻合较好。

关键词 ：金属材料, α + β钛合金, 热处理, 微观组织, 力学性能

Abstract：

Herein, the effect of heat treatments (solution, solution+single aging and solution+double aging) on the microstructure and mechanical properties of a novel Ti-based alloy Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr was investigated through microstructure characterization and tensile testing. The microstructure observations indicate that the alloy prior to heat treatment possesses a bimodal microstructure consisted of primary α_p phase, secondary α_s phase, and β phase, and the volume fraction of the primary α_p phase and secondary α_s phase is 22% and 21%, respectively. After solution treated in the dual phase zone, a portion of the original α_p and α_s phases was replaced by β phase and the alloy microstructure is comprised of metastable β phase, equiaxed primary α_p phase, and coarse lamellar secondary α_s phase. After single aging, a large number of evenly distributed needle-like nano secondary α_s phases are precipitated within the β phase; After double aging, the volume fraction of α phase increases significantly, while the grain size of primary α_p phase and secondary α_s phase increases with the increasing aging time. Quasi-static tensile test results reveal that alloys subjected to solution treatment in the dual phase zone exhibit significant enhancements in elongation compared to the as hot-rolled ones, but yielding at lower stress levels. Single aging results in significant increase of strength, thereby presenting an improved strength-ductility balance of the alloy. In comparison with the hot rolling process, the double aging process is unfavored to the ductility, moreover, with the increasing aging time, the strength decreases and elongation increases gradually. Finally, the variation in the work hardening rate of the alloy subjected to different heat treatments may be explained by work hardening rate-strain curves. Based on the experimental data, the modified Hall-Petch constitutive model is fitted, whilst the results predicted by this constitutive model have high coincidence with the experimental data.

Key words： metallic materials α + β titanium alloy heat treatment microstructure mechanical property

收稿日期: 2023-10-31

ZTFLH:

TG146.2

基金资助:宁波市科技创新2025重大专项(2021Z099);国家自然科学基金(52075272);新金属材料国家重点实验室开放基金

通讯作者: 汪小锋，博士，wangxiaofeng@nbu.edu.cn，研究方向为金属构件轻量化成形制造

Corresponding author: WANG Xiaofeng, Tel: 17858883615, E-mail: wangxiaofeng@nbu.edu.cn

作者简介: 彭文飞，男，1983年生，教授

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表1 Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr合金主要化学成分

图1 Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr合金热轧棒材的微观组织

表2 热处理工艺制度

图2 拉伸试样示意图

图3 热处理制度不同的合金的XRD谱

图4 Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr合金在850℃固溶后的组织

图5 Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr合金在850℃固溶+时效后的组织

Heat treatment	α_p phase volume fraction $V α p$ / %	α_p phase equivalent diameter λ / μm	α_s phase volume fraction $V α s$ / %	α_s phase interval λ / μm
Hot rolled	22	1.0	21	0.08
ST1	36	1.1	15	0.3
SA1	33	1.2	19	0.03
SA2	42	1.8	27	0.08
SA3	42	1.8	29	0.08
SA4	43	1.9	30	0.1

表3 不同制度热处理后钛合金微观组织的变化

图6 不同制度热处理后钛合金的拉伸工程应力-应变曲线

Heat treatment	Mechanical property
Heat treatment	UTS / MPa	YS / MPa	EL / %
Hot rolled	1120 $- 6 + 15$	1054 $- 8 + 11$	14.4 $- 1.3 + 1.7$
ST1	973 $- 4 + 21$	916 $- 4 + 14$	15.4 $- 1.8 + 2.1$
SA1	1149 $- 21 + 9$	1111 $- 13 + 9$	14.3 $- 0 + 2.7$
SA2	1118 $- 13 + 3$	1106 $- 4 + 5$	8.2 $- 2 + 0.3$
SA3	1109 $- 7 + 4$	1090 $- 1 + 8$	11.3 $- 1.2 + 1.8$
SA4	1085 $- 8 + 21$	1070 $- 4 + 11$	11.4 $- 0.3 + 0$
Common titanium alloys
TC4	933	894	8.7
TC11	1030	910	9
TC16	1087	920	16
TC18	1101	1049	12
SP700	-	1192	5.5

表4 Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr合金的力学性能

图7 不同制度热处理后合金的断口形貌

图8 Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr合金的加工硬化速率-应变曲线

图9 Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr合金在910℃固溶后的微观组织

图10 Ti-6Al-2Mo-2V-3Nb-2Fe-1Zr合金在910℃固溶后的应力-应变曲线

图11 位错运动在次生αs相间距中的示意图

图12 不同微观组织合金的强度分配拟合值与实际值的对比

[1]	Wang Y, Hao E, Zhao X, et al. Effect of microstructure evolution of Ti6Al4V alloy on its cavitation erosion and corrosion resistance in artificial seawater [J]. J. Mater. Sci. Technol., 2022, 100(5): 169
[2]	Kumar R R, Gupta R K, Sarkar A, et al. Vacuum diffusion bonding of α titanium alloy to stainless steel for aerospace applications: Interfacial microstructure and mechanical characteristics [J]. Mater. Charact., 2022, 183: 111607
[3]	Pasang T, Budiman A S, Wang J C, et al. Additive manufacturing of titanium alloys-Enabling re-manufacturing of aerospace and biomedical components [J]. Microelectron. Eng., 2023, 270: 111935
[4]	Yu J, Li Z, Qian C, et al. Investigation of deformation behavior, microstructure evolution, and hot processing map of a new near-α Ti alloy [J]. J. Mater. Res. Technol., 2023, 23: 2275
[5]	Zhou X, Li Y, Han Z, et al. Unusual stress-induced martensite transformation in Ti-6Al-4V alloy enabled by solution treatment in the lower α + β regime [J]. J. Alloy. Compd., 2023, 956: 170330
[6]	Zhang B, Wu X, Liu Z, et al. A pathway to significantly improve the ductility of a high strength PM α + β titanium alloy by short GB α layers and refined α WGB colonies [J]. Mat. Sci. Eng. A, 2023, 864: 144580
[7]	Ye X, Wan M, Huang C, et al. Effect of aging temperature on mechanical properties of TC21 alloy with multi-level lamellar microstructure [J]. Mat. Sci. Eng. A, 2022, 840: 142825
[8]	Zhang T, Zhu J, Yang T, et al. A new α + β Ti-alloy with refined microstructures and enhanced mechanical properties in the as-cast state [J]. Scr. Mater., 2022, 207: 114260
[9]	Chen Z P, Zhu Z H, Song M F, et al. An ultra-high-strength Ti-Al-V-Mo-Nb-Zr alloy designed from Ti-6Al-4V cluster formula [J]. Chin. J. Mater. Res., 2023, 37(4): 308 doi: 10.11901/1005.3093.2022.232
[9]	陈志鹏, 朱智浩, 宋梦凡等. 基于Ti-6Al-4V团簇式设计的超高强Ti-Al-V-Mo-Nb-Zr合金 [J]. 材料研究学报, 2023, 37(4): 308 doi: 10.11901/1005.3093.2022.232
[10]	Liu C, Dong Y C, Fang Z G, et al. Microstructure evolution and mechanical properties of new Ti-Al-Fe-B titanium alloy with high strength and ductility [J]. Rare. Metal. Mat. Eng., 2020, 49(5): 1607
[10]	刘畅, 董月成, 方志刚等. 新型高强韧Ti-Al-Fe-B系钛合金组织和性能研究 [J]. 稀有金属材料与工程, 2020, 49(5): 1607
[11]	Kayani S H, Cui M, Ahmed R T M, et al. Pore formation mechanism and intermetallic phase transformation in Ti-Al alloy during reactive sintering [J]. J. Mater. Res. Technol., 2023, 22: 1878
[12]	Školáková A, Leitner J, Salvetr P, et al. Kinetic and thermodynamic description of intermediary phases formation in Ti-Al system during reactive sintering [J]. Mater. Chem. Phys., 2019, 230: 122
[13]	Shi Z, Guo H, Liu R, et al. Microstructure and mechanical properties of TC21 titanium alloy by near-isothermal forging [J]. Trans. Nonferrous Met. Soc. China, 2015, 25(1): 72
[14]	Zhu X, Fan Q, Zhou G, et al. Influence of hot-rolling on the microstructure and mechanical properties of a near β-type Ti-5.2Mo-4.8Al-2.5Zr-1.7Cr alloy [J]. Prog. Nat. Sci-Mater., 2022, 32(4): 504
[15]	Zhu N Y, Chen S H, Liao Q, et al. Effect of solution treatment and aging on microstructure and hardness of TC11 titanium alloy [J]. Heat. Treat. Met., 2022, 47(12): 62 doi: 10.13251/j.issn.0254-6051.2022.12.010
[15]	朱宁远, 陈世豪, 廖强等. 固溶时效处理对TC11钛合金显微组织和硬度的影响 [J]. 金属热处理, 2022, 47(12): 62 doi: 10.13251/j.issn.0254-6051.2022.12.010
[16]	Wang J, Ye X, Li Y, et al. Effect of annealing temperature on mechanical properties of TC21 titanium alloy with multilevel lamellar microstructure [J]. Mat. Sci. Eng. A, 2023, 869: 144788
[17]	Ye X, Wan M, Huang C, et al. Effect of aging temperature on mechanical properties of TC21 alloy with multi-level lamellar microstructure [J]. Mat. Sci. Eng. A, 2022, 840: 142825
[18]	Zeng L R, Chen H L, Li X, et al. Influence of alloy element partitioning on strength of primary α phase in Ti-6Al-4V alloy [J]. J. Mater. Sci. Technol., 2018, 34(5): 782 doi: 10.1016/j.jmst.2017.07.016
[19]	Zhu W, Lei J, Zhang Z, et al. Microstructural dependence of strength and ductility in a novel high strength β titanium alloy with Bi-modal structure [J]. Mat. Sci. Eng. A, 2019, 762: 138086
[20]	Li C, Ding Z L, Huang C, et al. Microstructure and properties of SP-700 titanium alloy after high temperature solid solution and aging with different processes [J]. Mater. Mech. Eng., 2023, 47(1): 48 doi: 10.11973/jxgccl202301007
[20]	李聪, 丁智力, 黄灿等. 不同工艺高温固溶与时效处理后SP-700钛合金的组织与性能 [J]. 机械工程材料, 2023, 47(1): 48
[21]	Gu X F, Liu J, Shi J H. Influence of quenching and aging temperature on microstructure andmechanical properties of TC4 titanium alloy [J]. Heat. Treat. Met., 2011, 36(2): 29
[21]	顾晓辉, 刘君, 石继红. 淬火、时效温度对TC4钛合金组织和力学性能的影响 [J]. 金属热处理, 2011, 36(2): 29
[22]	Zhang G, Zhang F S. Effect of heat treatment process on structures and properties of SP-700 titanium alloy [J]. Trans. Nonferrous Met. Soc. China, 2010, 20(S1): 664
[22]	张钢, 张丰收. 热处理工艺对SP-700钛合金组织性能的影响 [J]. 中国有色金属学报, 2010, 20(S1): 664
[23]	Gu J L, Zhu Z S, Dai B, et al. Effect of cold deformation on aging behavior of Ti-15Mo-2.7Nb-3Al-0.2Si titanium alloy. The New Progress on Material Science and Engineering [C]. Beijing, 2000
[23]	顾家琳, 朱知寿, 代冰等. 冷变形对Ti-15Mo-2.7Nb-3Al-0.2Si钛合金时效行为的影响. 2000年材料科学与工程新进展(下)——2000年中国材料研讨会论文集 [C]. 北京, 2000
[24]	Deng Y T, Li S Q, Huang X, et al. Aging precipitate of beta forged TC17 titanium alloy for aero-engine [J]. Aero. Manu. Technol., 2018, 61(9): 6
[24]	邓雨亭, 李四清, 黄旭等. 航空发动机用β锻TC17钛合金时效析出行为研究 [J]. 航空制造技术, 2018, 61(9): 6
[25]	Wang X Y, Xie C M. Study on solution-Aging heat treatment of ZTC4 titanium alloys [J]. Acta. Metall. Sin., 2002(z1): 89
[25]	王新英, 谢成木. ZTC4钛合金固溶时效热处理工艺研究 [J]. 金属学报, 2002(z1): 89
[26]	Zhao S, Xiao H, Qin T C, et al. Microstructure and properties of TC4 titanium alloy hot-rolled sheet by electron beam cold bed furnace melting [J]. Rare. Metal. Mat. Eng., 2019, 48(12): 4053
[26]	赵帅, 肖寒, 秦铁昌等. EB炉熔炼TC4钛合金热轧板材的组织性能 [J]. 稀有金属材料与工程, 2019, 48(12): 4053
[27]	Li M, Li X Y, Ma J K, et al. Research of microstructure evolution and mechanical properties of SP700 titanium alloy sheet [J]. Nonferrous Metal Mat. Eng., 2019, 40(3): 31
[27]	李蒙, 李晓燕, 马家琨等. SP700钛合金板轧制过程的组织演变和力学性能研究 [J]. 有色金属材料与工程, 2019, 40(3): 31
[28]	Zhu W, Lei J, Zhang Z, et al. Microstructural dependence of strength and ductility in a novel high strength β titanium alloy with Bi-modal structure [J]. Mat. Sci. Eng. A, 2019, 762: 138086
[29]	Ren L, Xiao W, Chang H, et al. Microstructural tailoring and mechanical properties of a multi-alloyed near β titanium alloy Ti-5321 with various heat treatment [J]. Mat. Sci. Eng. A, 2018, 711: 553
[30]	Atri R R, Ravichandran K S, Jha S K. Elastic properties of in-situ processed Ti-TiB composites measured by impulse excitation of vibration [J]. Mat. Sci. Eng. A, 1999, 271(1): 150
[31]	Tan C, Sun Q, Xiao L, et al. Slip transmission behavior across α/β interface and strength prediction with a modified rule of mixtures in TC21 titanium alloy [J]. J. Alloy. Compd., 2017, 724: 112
[32]	Wang B S, Sun F Y, Meng Q E, et al. An approach to mathematical modeling of dislocation link length distribution in metal [J]. Acta Metall. Sin., 1992(3): 6
[32]	王勃生, 孙福玉, 孟庆恩等. 晶体位错链长统计分布理论公式初探 [J]. 金属学报, 1992(3): 6

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