Effect of Hot Extrusion and Heat Treatment on the Microstructure and Tensile Properties of Network Structured TiBw/TC18 Composites

doi:10.11900/0412.1961.2022.00187

Acta Metall Sin

2022, Vol. 58

Issue (11): 1478-1488 DOI: 10.11900/0412.1961.2022.00187

Research paper

Current Issue | Archive | Adv Search

Effect of Hot Extrusion and Heat Treatment on the Microstructure and Tensile Properties of Network Structured TiBw/TC18 Composites

CHEN Run, WANG Shuai(

), AN Qi, ZHANG Rui, LIU Wenqi, HUANG Lujun, GENG Lin

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Cite this article:

CHEN Run, WANG Shuai, AN Qi, ZHANG Rui, LIU Wenqi, HUANG Lujun, GENG Lin. Effect of Hot Extrusion and Heat Treatment on the Microstructure and Tensile Properties of Network Structured TiBw/TC18 Composites. Acta Metall Sin, 2022, 58(11): 1478-1488.

Download:

HTML

PDF(5032KB)
Export: BibTeX | EndNote (RIS)

Abstract

To improve the comprehensive performance of Ti matrix composites for defense applications such as aviation and aerospace, as-sintered TiBw/TC18 composites with different reinforcement contents were hot extruded and heat-treated. The composites were characterized and analyzed by OM, SEM, and TEM. The mechanical properties of the composites were measured using an electronic universal testing machine. By extruding in the β single-phase region, the β grain size of TiBw/TC18 was reduced from 70 μm to about 40 μm. After the subsequent triple-annealing or solution aging heat treatment, α phase with different sizes was precipitated and distributed in the β phase. The elongation of the as-extruded composites significantly showed improvement, but the strength decreased by about 17%. After applying the triple-annealing heat treatment, the tensile strength and elongation of 2.0%TiBw/TC18 (volume fraction) reached 1200 MPa and 21.7%, which are higher by 5.5% and 189%, respectively, than those in the sintered state. Moreover, after applying the solution aging heat treatment, the as-extruded 2.0%TiBw/TC18 exhibited tensile strength and elongation of 1389 MPa and 9.9%, which are higher by 22.2% and 32%, respectively, than those exhibited by as-sintered 2.0%TiBw/TC18. Consequently, the hot extrusion can effectively reduce the grain size of as-sintered TiBw/TC18, and the tensile properties of the extruded TiBw/TC18 can be modified to meet the requirements of different service conditions through different subsequent heat treatments.

Key words: titanium matrix composite hot extrusion network microstructure heat treatment mechanical property

Received: 21 April 2022

ZTFLH:

TB33

Fund: National Key Research and Development Program of China(2021YFB3701203);National Natural Science Foundation of China(52171137);National Natural Science Foundation of China(52071116);Natural Science Foundation of Heilongjiang Province(TD2020E001);Heilongjiang Postdoctoral Fund(LBH-Z20058)

About author: WANG Shuai, Tel: 13704505457, E-mail: wangshuai1993@hit.edu.cn

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors
	Run CHEN
	Shuai WANG
	Qi AN
	Rui ZHANG
	Wenqi LIU
	Lujun HUANG
	Lin GENG

URL:

https://www.ams.org.cn/EN/10.11900/0412.1961.2022.00187 OR https://www.ams.org.cn/EN/Y2022/V58/I11/1478

Fig.1 OM image of as-sintered 2.0%TiBw/TC18 composites (a), schematic illustrating samples' locations of as-extruded 1.0%TiBw/TC18 for EBSD analysis (b), schematics of solution aging (c) and triple-annealing (d) treatments for as-extruded alloy and composites (AC—air cooling, FC—furnace cooling)

Fig.2 EBSD grain orientation maps (a1-d1), frequency distributions of grain size (a2-d2), inverse pole figures (IPFs) (a3-d3), and pole figures (PFs) (a4-d4) of samples A (a1-a4), B (b1-b4), C (c1-c4), and D (d1-d4) in as-extruded 1.0%TiBw/TC18 composites (ED—extrusion direction)

Fig.3 OM images of TiBw/TC18 composites with different reinforcement volume fractions
(a) as-extruded TC18 and enlarged SEM image of the marked area (inset)
(b) as-extruded 0.5%TiBw/TC18
(c) as-extruded 1.0%TiBw/TC18, and SEM image and phase map (insets)
(d) as-extruded 2.0%TiBw/TC18
(e) as-sintered 0.5%TiBw/TC18 solution at 1100^oC followed by water quench, and the area circled by the line is the area where the grains grow

Fig.4 OM (a-d) and SEM (e, f) images of the TC18 alloy (a, b), 0.5%TiBw/TC18 (c, d), and 2.0%TiBw/TC18 (e, f) composites after triple-annealing (a, c, e) and solution aging (b, d, f) heat treatments (Insets show the high magnified images. GBα—grain boungry α, α_c—coarse α, α_f—fine α, α₂—Ti₃Al)

Fig.5 Bright field TEM (a, b) and HRTEM (c, d) images of 2.0%TiBw/TC18 composites after triple-annealing, and fast Fourier transformation (FFT) patterns taken from Figs.5c (e) and d (f)

Fig.6 Tensile stress-strain curves of TiBw/TC18 composites with different states

Table 1 Tensile properties of the TiBw/TC18 composites with different states

Fig.7 Low (a, c) and high (b, d) magnified SEM images of tensile fracture (a, b) and fracture side surface (c, d) of as-extruded 1.0%TiBw/TC18 (Inset in Fig.7d shows the enlarged view)

Fig.8 Low (a, c) and high (b, d-f) magnified SEM images of tensile fracture (a, b) and fracture side surface (c-f) of as-extruded 1.0%TiBw/TC18 after triple-annealing (Insets in Figs.8e and f show the enlarged views)

1	Zhang R, Wang D J, Huang L J, et al. Effects of heat treatment on microstructure and high temperature tensile properties of TiBw/TA15 composite billet with network architecture [J]. Mater. Sci. Eng., 2017, A679: 314
2	Wang S, An Q, Zhang R, et al. Microstructure characteristics and enhanced properties of network-structured TiB/(TA15-Si) composites via rolling deformation at different temperatures [J]. Mater. Sci. Eng., 2022, A829: 142176
3	Huang L J, Geng L. Progress on discontinuously reinforced titanium matrix composites [J]. J. Aeronaut. Mater., 2014, 34(04): 126
	黄陆军, 耿林. 非连续增强钛基复合材料研究进展 [J]. 航空材料学报, 2014, 34(04): 126
4	Tjong S C, Ma Z Y. Microstructural and mechanical characteristics of in situ metal matrix composites [J]. Mater. Sci. Eng., 2000, R29: 49
5	Ma Z Y, Tjong S C, Gen L. In-situ Ti-TiB metal-matrix composite prepared by a reactive pressing process [J]. Scr. Mater., 2000, 42: 367 doi: 10.1016/S1359-6462(99)00354-1
6	Patel V V, El-Desouky A, Garay J E, et al. Pressure-less and current-activated pressure-assisted sintering of titanium dual matrix composites: Effect of reinforcement particle size [J]. Mater. Sci. Eng., 2009, A507: 161
7	Panda K B, Ravi Chandran K S. Synthesis of ductile titanium-titanium boride (Ti-TiB) composites with a beta-titanium matrix: The nature of TiB formation and composite properties [J]. Metall. Mater. Trans., 2003, 34A: 1371
8	Huang L J, Geng L, Li A B, et al. In situ TiBw/Ti-6Al-4V composites with novel reinforcement architecture fabricated by reaction hot pressing [J]. Scr. Mater., 2009, 60: 996 doi: 10.1016/j.scriptamat.2009.02.032
9	Hashin Z, Shtrikman S. A variational approach to the theory of the elastic behaviour of multiphase materials [J]. J. Mech. Phys. Solids, 1963, 11: 127 doi: 10.1016/0022-5096(63)90060-7
10	Wang S, Huang L J, Jiang S, et al. Multiplied bending ductility and toughness of titanium matrix composites by laminated structure manipulation [J]. Mater. Des., 2021, 197: 109237 doi: 10.1016/j.matdes.2020.109237
11	Wei S L, Huang L J, Li X T, et al. Correction to: Network-strengthened Ti-6Al-4V/(TiC + TiB) composites: Powder metallurgy processing and enhanced tensile properties at elevated temperatures [J]. Metall. Mater. Trans., 2020, 51A: 1437
12	Zhang R, Huang L J, An Q, et al. The hyperbolic constitutive equations and modified dynamic material model of TiBw/Ti-6.5Al-2.5Zr-1Mo-1V-0.5Si composites [J]. Mater. Sci. Eng., 2019, A766: 138329
13	Jiao Y, Huang L J, Wei S L, et al. Constructing two-scale network microstructure with nano-Ti5Si3 for superhigh creep resistance [J]. J. Mater. Sci. Technol., 2019, 35: 1532 doi: 10.1016/j.jmst.2019.04.001
14	Roy S, Suwas S, Tamirisakandala S, et al. Development of solidification microstructure in boron-modified alloy Ti-6Al-4V-0.1B [J]. Acta Mater., 2011, 59: 5494 doi: 10.1016/j.actamat.2011.05.023
15	Sun S Y, Lu W J. Effects of trace reinforcements on microstructure and tensile properties of in-situ synthesized TC18 Ti matrix composite [J]. J. Compos. Mater., 2017, 51: 3623 doi: 10.1177/0021998317691343
16	Sen I, Ramamurty U. Elastic modulus of Ti-6Al-4V-xB alloys with B up to 0.55 wt.% [J]. Scr. Mater., 2010, 62: 37 doi: 10.1016/j.scriptamat.2009.09.022
17	Liu C M, Wang H M, Tian X J, et al. Microstructure and tensile properties of laser melting deposited Ti-5Al-5Mo-5V-1Cr-1Fe near β titanium alloy [J]. Mater. Sci. Eng., 2013, A586: 323
18	Prithiv T S, Kloenne Z, Li D, et al. Grain boundary segregation and its implications regarding the formation of the grain boundary α phase in the metastable β-Titanium Ti-5Al-5Mo-5V-3Cr alloy [J]. Scr. Mater., 2022, 207: 114320 doi: 10.1016/j.scriptamat.2021.114320
19	Sun J F, Zhang Z W, Zhang M L, et al. Microstructure evolution and their effects on the mechanical properties of TB8 titanium alloy [J]. J. Alloys Compd., 2016, 663: 769 doi: 10.1016/j.jallcom.2015.12.152
20	Yao C F, Wu D X, Ma L F, et al. Surface integrity evolution and fatigue evaluation after milling mode, shot-peening and polishing mode for TB6 titanium alloy [J]. Appl. Surf. Sci., 2016, 387: 1257 doi: 10.1016/j.apsusc.2016.06.162
21	Chen R, An Q, Wang S, et al. Overcoming the strength-ductility trade-off dilemma in TiBw/TC18 composites via network architecture with trace reinforcement [J]. Mater. Sci. Eng., 2022, A842: 143092
22	Zheng Y F, Wu Y H. Revolutionizing metallic biomaterials [J]. Acta Metall. Sin., 2017, 53: 257 doi: 10.11900/0412.1961.2016.00529
	郑玉峰, 吴远浩. 处在变革中的医用金属材料 [J]. 金属学报, 2017, 53: 257 doi: 10.11900/0412.1961.2016.00529
23	Liu D K, Huang G S, Gong G L, et al. Influence of different rolling routes on mechanical anisotropy and formability of commercially pure titanium sheet [J]. Trans. Nonferrous Met. Soc. China, 2017, 27: 1306 doi: 10.1016/S1003-6326(17)60151-1
24	Ma J K, Li J J, Wang Z J, et al. Bonding zone microstructure and mechanical properties of forging-additive hybrid manufactured Ti-6Al-4V Alloy [J]. Acta. Metall. Sin., 2021, 57: 1246
	马健凯, 李俊杰, 王志军等. 锻造-增材复合制造Ti-6Al-4V合金结合区显微组织及力学性能 [J]. 金属学报, 2021, 57: 1246 doi: 10.11900/0412.1961.2020.00416
25	Liu R C, Wang Z, Liu D, et al. Microstructure and tensile properties of Ti-45.5A1-2Cr-2Nb-0.15B alloy processed by hot extrusion [J]. Acta Metall. Sin., 2013, 49: 641 doi: 10.3724/SP.J.1037.2012.00762
	刘仁慈, 王震, 刘冬等. Ti-45.5A1-2Cr-2Nb-0.15B合金热挤压组织与拉伸性能研究 [J]. 金属学报, 2013, 49: 641 doi: 10.3724/SP.J.1037.2012.00762
26	Wang B, Huang L J, Hu H T, et al. Superior tensile strength and microstructure evolution of TiB whisker reinforced Ti60 composites with network architecture after β extrusion [J]. Mater. Charact., 2015, 103: 140 doi: 10.1016/j.matchar.2015.03.029
27	Wang B, Huang L J, Geng L, et al. Effects of heat treatments on microstructure and tensile properties of as-extruded TiBw/near-α Ti composites [J]. Mater. Des., 2015, 85: 679 doi: 10.1016/j.matdes.2015.07.058
28	Banerjee D, Williams J C. Perspectives on titanium science and technology [J]. Acta Mater., 2013, 61: 844 doi: 10.1016/j.actamat.2012.10.043
29	Guo X L, Wang L Q, Wang M M, et al. Effects of degree of deformation on the microstructure, mechanical properties and texture of hybrid-reinforced titanium matrix composites [J]. Acta Mater., 2012, 60: 2656 doi: 10.1016/j.actamat.2012.01.032

[1]	ZHENG Liang, ZHANG Qiang, LI Zhou, ZHANG Guoqing. Effects of Oxygen Increasing/Decreasing Processes on Surface Characteristics of Superalloy Powders and Properties of Their Bulk Alloy Counterparts: Powders Storage and Degassing[J]. 金属学报, 2023, 59(9): 1265-1278.
[2]	ZHANG Leilei, CHEN Jingyang, TANG Xin, XIAO Chengbo, ZHANG Mingjun, YANG Qing. Evolution of Microstructures and Mechanical Properties of K439B Superalloy During Long-Term Aging at 800^oC[J]. 金属学报, 2023, 59(9): 1253-1264.
[3]	ZHANG Jian, WANG Li, XIE Guang, WANG Dong, SHEN Jian, LU Yuzhang, HUANG Yaqi, LI Yawei. Recent Progress in Research and Development of Nickel-Based Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1109-1124.
[4]	GONG Shengkai, LIU Yuan, GENG Lilun, RU Yi, ZHAO Wenyue, PEI Yanling, LI Shusuo. Advances in the Regulation and Interfacial Behavior of Coatings/Superalloys[J]. 金属学报, 2023, 59(9): 1097-1108.
[5]	LI Jingren, XIE Dongsheng, ZHANG Dongdong, XIE Hongbo, PAN Hucheng, REN Yuping, QIN Gaowu. Microstructure Evolution Mechanism of New Low-Alloyed High-Strength Mg-0.2Ce-0.2Ca Alloy During Extrusion[J]. 金属学报, 2023, 59(8): 1087-1096.
[6]	DING Hua, ZHANG Yu, CAI Minghui, TANG Zhengyou. Research Progress and Prospects of Austenite-Based Fe-Mn-Al-C Lightweight Steels[J]. 金属学报, 2023, 59(8): 1027-1041.
[7]	CHEN Liqing, LI Xing, ZHAO Yang, WANG Shuai, FENG Yang. Overview of Research and Development of High-Manganese Damping Steel with Integrated Structure and Function[J]. 金属学报, 2023, 59(8): 1015-1026.
[8]	YUAN Jianghuai, WANG Zhenyu, MA Guanshui, ZHOU Guangxue, CHENG Xiaoying, WANG Aiying. Effect of Phase-Structure Evolution on Mechanical Properties of Cr₂AlC Coating[J]. 金属学报, 2023, 59(7): 961-968.
[9]	WANG Fa, JIANG He, DONG Jianxin. Evolution Behavior of Complex Precipitation Phases in Highly Alloyed GH4151 Superalloy[J]. 金属学报, 2023, 59(6): 787-796.
[10]	WU Dongjiang, LIU Dehua, ZHANG Ziao, ZHANG Yilun, NIU Fangyong, MA Guangyi. Microstructure and Mechanical Properties of 2024 Aluminum Alloy Prepared by Wire Arc Additive Manufacturing[J]. 金属学报, 2023, 59(6): 767-776.
[11]	ZHANG Dongyang, ZHANG Jun, LI Shujun, REN Dechun, MA Yingjie, YANG Rui. Effect of Heat Treatment on Mechanical Properties of Porous Ti55531 Alloy Prepared by Selective Laser Melting[J]. 金属学报, 2023, 59(5): 647-656.
[12]	LIU Manping, XUE Zhoulei, PENG Zhen, CHEN Yulin, DING Lipeng, JIA Zhihong. Effect of Post-Aging on Microstructure and Mechanical Properties of an Ultrafine-Grained 6061 Aluminum Alloy[J]. 金属学报, 2023, 59(5): 657-667.
[13]	HOU Juan, DAI Binbin, MIN Shiling, LIU Hui, JIANG Menglei, YANG Fan. Influence of Size Design on Microstructure and Properties of 304L Stainless Steel by Selective Laser Melting[J]. 金属学报, 2023, 59(5): 623-635.
[14]	WU Xinqiang, RONG Lijian, TAN Jibo, CHEN Shenghu, HU Xiaofeng, ZHANG Yangpeng, ZHANG Ziyu. Research Advance on Liquid Lead-Bismuth Eutectic Corrosion Resistant Si Enhanced Ferritic/Martensitic and Austenitic Stainless Steels[J]. 金属学报, 2023, 59(4): 502-512.
[15]	LI Shujun, HOU Wentao, HAO Yulin, YANG Rui. Research Progress on the Mechanical Properties of the Biomedical Titanium Alloy Porous Structures Fabricated by 3D Printing Technique[J]. 金属学报, 2023, 59(4): 478-488.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed