A Novel Ti-4.13Al-9.36V Alloy of High Ductility Designed on Base of α''-Microstructure for Laser Solid Forming

doi:10.11901/1005.3093.2020.536

Chinese Journal of Materials Research

2021, Vol. 35

Issue (10): 741-751 DOI: 10.11901/1005.3093.2020.536

ARTICLES

Current Issue | Archive | Adv Search

A Novel Ti-4.13Al-9.36V Alloy of High Ductility Designed on Base of α''-Microstructure for Laser Solid Forming

LIU Tianyu¹, ZHU Zhihao¹, ZHANG Shuang², DONG Chuang¹^,²(

), MIN Xiaohua³, WANG Qing¹

^1.Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Ministry of Education), School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
^2.School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China
^3.School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China

Cite this article:

LIU Tianyu, ZHU Zhihao, ZHANG Shuang, DONG Chuang, MIN Xiaohua, WANG Qing. A Novel Ti-4.13Al-9.36V Alloy of High Ductility Designed on Base of α''-Microstructure for Laser Solid Forming. Chinese Journal of Materials Research, 2021, 35(10): 741-751.

Download:

HTML

PDF(15335KB)
Export: BibTeX | EndNote (RIS)

Abstract

Ti-6Al-4V alloy is widely used in laser solid forming, however, low work-hardening ability and ductility limit its industrial applications. In this paper, a novel Ti-4.13Al-9.36V (%) alloy with cluster composition of 4[Al-Ti₁₂](AlTi₂)+12[Al-Ti₁₄](V₂Ti) was designed based on the cluster composition formula 12[Al-Ti₁₂](AlTi₂)+5[Al-Ti₁₄](V₂Ti) of Ti-6Al-4V. Samples of two alloys Ti-4.13Al-9.36V and Ti-6.05Al-3.94V (set as contrast alloy) were prepared by laser solid forming and followed by heat treatment. Then the microstructure and mechanical properties of the as-deposited and solution treated alloys were investigated. The results show that the microstructure of the as-deposited alloys Ti-4.13Al-9.36V and Ti-6.05Al-3.94V consists of columnar prior-β grains, which grow epitaxial from the substrate along the deposition direction. A basket-weave α-laths existed in the inner prior-β grains. The width of prior-β grains and the width of α-laths of Ti-4.13Al-9.36V alloy are ca 606 μm and 0.48 μm, in the contrast, those of Ti-6.05Al-3.94V alloy are ca 770 μm and 0.71 μm, respectively. Further, after the Ti-6.05Al-3.94V subjected to post solution treatment at 920°C for 2 h followed by water cooling, its microstructure consists of phases α'+α, and the corresponding yield strength, ultimate tensile strength and ductility to failure were ca 893 MPa, 1071 MPa and 3%, respectively. However, when the Ti-4.13Al-9.36V subjected to post solution treatment at 750°C for 2 h followed by water cooling, its microstructure consists of phases α''+α, and the related yield strength, ultimate tensile strength and ductility to failure were ca 383 MPa, 989 MPa and 17%, respectively. This may be ascribed to that the stress-induced α''-phase could significantly improve the work-hardening ability compared with α'-phase. The work-hardening ability and ductility of the Ti-alloy used for laser solid forming could be significantly improved by adjusting the microstructure with phases α''+αvia cluster-plus-glue atom model.

Key words: metallic materials composition design cluster-plus-glue atom model laser solid forming work-hardening

Received: 17 December 2020

ZTFLH:

TG166.5

Fund: National Key Research and Development Program of China(2016YFB1100103);Key Discipline and Major Project of Dalian Science and Technology Innovation Foundation(2020JJ25CY004)

About author: DONG Chuang, Tel: (0411)84708389, E-mail: dong@dlut.edu.cn

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors
	Tianyu LIU
	Zhihao ZHU
	Shuang ZHANG
	Chuang DONG
	Xiaohua MIN
	Qing WANG

URL:

https://www.cjmr.org/EN/10.11901/1005.3093.2020.536 OR https://www.cjmr.org/EN/Y2021/V35/I10/741

Table 1 Cluster formulas of designed Ti-Al-V alloys and their compositions

Fig.1 SEM image of Ti, Al and V powders mixture for Ti-6.05Al-3.94V (a) and scanning strategy for laser additive manufacturing (b)

Fig.2 Measurement locations of Ti-6.05Al-3.94V and Ti-4.13Al-9.36V

Fig.3 XRD spectra of the laser solid formed Ti-6.05Al-3.94V and Ti-4.13Al-9.36V samples (a) XRD spectra of the as-deposited samples, and (b) XRD spectra of the different solution temperature, wherein Ti-4.13Al-9.36V alloy solution temperature subjected to 700℃, 750℃ and 800℃, and is Ti-6.05Al-3.94V subjected to 920℃, respectively

Fig.4 As-deposited microstructure of Ti-6.05Al-3.94V and Ti-4.13Al-9.36V (a, b) OM images of Ti-6.05Al-3.94V and Ti-4.13Al-9.36V, (c, d) SEM images of Ti-6.05Al-3.94V and Ti-4.13Al-9.36V

Fig.5 SEM images of Ti-6.05Al-3.94V and Ti-4.13Al-9.36V (a) SEM image of Ti-6.05Al-3.94V after solution treatment at 920℃, and (b)(c)(d) SEM images of Ti-4.13Al-9.36V after solution treatment at 700℃, 750℃ and 800℃, respectively

Table 2 Changes of α laths width in Ti-6.05Al-3.94V and Ti-4.13Al-9.36V with different solution temperature

Fig.6 TEM morphological images and diffraction pattern of Ti-6.05Al-3.94V and Ti-4.13Al-9.36V (a~c) TEM morphological images and diffraction pattern of Ti-6.05Al-3.94V after solution treatment at 920℃, (d~f) TEM morphological images and diffraction pattern of Ti-4.13Al-9.36V after solution treatment at 800℃

Table 3 Vickers hardness of the as-deposited and solution heat treatment in Ti-6.05Al-3.94V and Ti-4.13Al-9.36V

Fig.7 Engineering stress-strain curves of the as-deposited and solution heat treatment Ti-6.05Al-3.94V and Ti-4.13Al-9.36V (a) stress-strain curves of the as-deposited Ti-6.05Al-3.94V and Ti-4.13Al-9.36V, (b) stress-strain curves of Ti-6.05Al-3.94V and Ti-4.13Al-9.36V subjected to different solution-treatment temperature

Table 4 Yield strength (σ_YS), tensile strength (σ_UTS) and elongation (δ) of the as-deposited and solution- treatment Ti-6.05Al-3.94V and Ti-4.13Al-9.36V alloy

Fig.8 Curve of work hardening rate

Fig.9 SEM fracture morphologies of the as-deposited Ti-6.05Al-3.94V and Ti-4.13Al-9.36V, (a) Ti-6.05Al-3.94V, (b) Ti-4.13Al-9.36V

Fig.10 SEM fracture morphologies of the solution-treatment Ti-6.05Al-3.94V and Ti-4.13Al-9.36V (a) Ti-6.05Al-3.94V after solution treatment at 920℃, (b, c, d) Ti-4.13Al-9.36V after solution treatment at 700℃, 750℃ and 800℃

1	Yang M, Wang G, Teng C Y, et al. 3D phase field simulation of effect of interfacial energy anisotropy on sideplate growth in Ti-6Al-4V [J]. Acta. Metall. Sin, 2012, 48: 148
	杨梅, 王刚, 滕春禹等. Ti-6Al-4V 中界面对α相片层生长的影响三维相场模拟 [J].金属学报, 2012, 48: 148
2	Liu S Y, Shin Y C. Additive manufacturing of Ti6Al4V alloy: A review [J]. Mater. Des, 2019, 164: 107552
3	Zheng Z Y, Cai L J, Xiang K, et al. Typical Microstructural Characteristics of Ti-5Al-5Mo-5V-3Cr-1Fe Metastable β Ti Alloy Forged in α+β Region [J]. Acta. Metall. Sin. (Engl. Lett.), 2020, 33: 1601
4	Ren Y M, Lin X, Fu X, et al. Microstructure and deformation behavior of Ti-6Al-4V alloy by high-power laser solid forming [J]. Acta Mater, 2017, 132: 82
5	Niinomi M. Mechanical properties of biomedical titanium alloys [J]. Mater. Sci. Eng., A, 1998, 243: 231
6	De Formanoir C, Martin G, Prima F, et al. Micromechanical behavior and thermal stability of a dual-phase α+α′ titanium alloy produced by additive manufacturing [J]. Acta Mater, 2019, 162: 149
7	Zhao Z, Chen J, Tan H, et al. Achieving superior ductility for laser solid formed extra low interstitial Ti-6Al-4V titanium alloy through equiaxial alpha microstructure [J]. Scripta Mater, 2018, 146: 187
8	Sabban R, Bahl S, Chatterjee K, et al. Globularization using heat treatment in additively manufactured Ti-6Al-4V for high strength and toughness [J]. Acta Mater, 2019, 162: 239
9	De Formanoir C, Brulard A, Vivès S, et al. A strategy to improve the work-hardening behavior of Ti-6Al-4V parts produced by additive manufacturing [J]. Mater. Res. Lett, 2016: 1
0	Sofinowski K, Smíd M, Kuběna I, et al. In situ characterization of a high work hardening Ti-6Al-4V prepared by electron beam melting [J]. Acta Mater, 2019, 179: 224
11	Kim H S, Lim S H, Yeo I D, et al. Stress-induced martensite transformation of metastable β-titanium alloy [J]. Mater. Sci. Eng., A, 2007, 449: 322
12	Grosdidier T, Philippe M J. Deformation induced martensite and superelasticity in a β-meta stable titanium alloy [J]. Mater. Sci. Eng., A, 2000, 291: 218
13	Duerig T W, Terlinde G T, Williams J C. Phase transformation and tensile properties of Ti-10V-2Fe-3Al [J]. Metall. Trans., A, 1980, 11A: 1987
14	Dong C, Dong D D, Wang Q. Chemical Units in Solid Solutions and Alloy Composition Design [J]. Acta. Metall. Sin, 2018, 54: 293
	董闯, 董丹丹, 王清. 固溶体中的化学结构单元与合金成分设计 [J]. 金属学报, 2018, 54: 293
15	Dong C, Wang Z J, Zhang S, et al. Review of structural models for the compositional interpretation of metallic glasses. Int. Mater. Rev, 2020, 65: 286
16	Qian S N, Dong C, Liu T Y, et al. Solute-homogenization model and its experimental verification in Mg-Gd-based alloys [J]. J. Mater. Sci. Technol, 2018, 34: 1132
17	Jiang B B, Wang Q, Wen D H, et al. Effects of Nb and Zr on structural stabilities of Ti-Mo-Sn-based alloys with low modulus [J]. Mater. Sci. Eng., A, 2017, 687: 1
18	Jiang B B, Wen D H, Wang Q, et al. Design of near-α Ti alloys via a cluster formula approach and their high-temperature oxidation resistance [J]. J. Mater. Sci. Technol, 2019, 35: 1008
19	Wu X H, Liang J, Mei J F, et al. Microstructure of laser-deposited Ti-6Al-4V, Mater. Des, 2004, 25: 137
20	Vrancken B, Thijs L, Kruth J P, et al. Microstructure and mechanical properties of a novel β titanium metallic composite by selective laser melting [J]. Acta Mater, 2014, 68: 150
21	Zhang B C. Non-Ferrous Metals and Heat Treatment [M]. Xi'an: Northwestern Polytechnical University Press, 1993: 88
22	Tan H, Zhang F Y, Chen j, et al. Microstructure Evolution of Laser Solid Formed Ti-XAl-YV Alloys from Blended Elemental Powders [J]. Rare Metal Materials and Engineering, 2011, 40: 1373
	谭华, 张凤英, 陈静等. 混合元素法激光立体成形Ti-XAl-YV合金的微观组织演化 [J]. 稀有金属材料与工程, 2011, 40: 1373
23	Kolli R P, Joost W J, Ankem S. Phase Stability and Stress-Induced Transformations in Beta Titanium Alloys [J]. JOM, 2015, 67(6):1273
24	Grosdidier T, Combress Y, Gautier E, et al. Effect of microstructure variations on the formation of deformation-induced martensite and associated tensile properties in a β metastable Ti alloy [J]. Metall. Mater. Trans., A, 2000, 31A: 1095
25	Li C, Chen J, Ren Y J, et al. Effect of solution heat treatment on the stress-induced martensite transformation in two new titanium alloys [J]. J. Alloys. Compd, 2015, 641: 192
26	Zhang J, Yang, Y, Cao S, et al. Fine equiaxed β grains and superior tensile property in Ti-6Al-4V alloy deposited by coaxial electron beam wire feeding additive manufacturing [J]. Acta Metall. Sin. (Engl. Lett.), 2020, 33: 1311
27	Han D, Wang Z Y, Yan Y, et al. A good strength-ductility match in Cu-Mn alloys with high stacking fault energies: Determinant effect of short range ordering [J]. Scripta Mater, 2017, 133: 59
28	Castany P, Gloriant T, Sun F, et al. Design of strain-transformable titanium alloys [J]. CR Phys, 2018, 19: 710
29	Marteleur M, Sun F, Gloriant T, et al. On the design of new β-metastable titanium alloys with improved work hardening rate thanks to simultaneous TRIP and TWIP effects [J]. Scripta Mater, 2012, 66: 749

[1]	MAO Jianjun, FU Tong, PAN Hucheng, TENG Changqing, ZHANG Wei, XIE Dongsheng, WU Lu. Kr Ions Irradiation Damage Behavior of AlNbMoZrB Refractory High-entropy Alloy[J]. 材料研究学报, 2023, 37(9): 641-648.
[2]	SONG Lifang, YAN Jiahao, ZHANG Diankang, XUE Cheng, XIA Huiyun, NIU Yanhui. Carbon Dioxide Adsorption Capacity of Alkali-metal Cation Dopped MIL125[J]. 材料研究学报, 2023, 37(9): 649-654.
[3]	ZHAO Zhengxiang, LIAO Luhai, XU Fanghong, ZHANG Wei, LI Jingyuan. Hot Deformation Behavior and Microstructue Evolution of Super Austenitic Stainless Steel 24Cr-22Ni-7Mo-0.4N[J]. 材料研究学报, 2023, 37(9): 655-667.
[4]	SHAO Hongmei, CUI Yong, XU Wendi, ZHANG Wei, SHEN Xiaoyi, ZHAI Yuchun. Template-free Hydrothermal Preparation and Adsorption Capacity of Hollow Spherical AlOOH[J]. 材料研究学报, 2023, 37(9): 675-684.
[5]	XING Dingqin, TU Jian, LUO Sen, ZHOU Zhiming. Effect of Different C Contents on Microstructure and Properties of VCoNi Medium-entropy Alloys[J]. 材料研究学报, 2023, 37(9): 685-696.
[6]	OUYANG Kangxin, ZHOU Da, YANG Yufan, ZHANG Lei. Microstructure and Tensile Properties of Mg-Y-Er-Ni Alloy with Long Period Stacking Ordered Phases[J]. 材料研究学报, 2023, 37(9): 697-705.
[7]	XU Lijun, ZHENG Ce, FENG Xiaohui, HUANG Qiuyan, LI Yingju, YANG Yuansheng. Effects of Directional Recrystallization on Microstructure and Superelastic Property of Hot-rolled Cu71Al18Mn11 Alloy[J]. 材料研究学报, 2023, 37(8): 571-580.
[8]	XIONG Shiqi, LIU Enze, TAN Zheng, NING Likui, TONG Jian, ZHENG Zhi, LI Haiying. Effect of Solution Heat Treatment on Microstructure of DZ125L Superalloy with Low Segregation[J]. 材料研究学报, 2023, 37(8): 603-613.
[9]	LIU Jihao, CHI Hongxiao, WU Huibin, MA Dangshen, ZHOU Jian, XU Huixia. Heat Treatment Related Microstructure Evolution and Low Hardness Issue of Spray Forming M3 High Speed Steel[J]. 材料研究学报, 2023, 37(8): 625-632.
[10]	YOU Baodong, ZHU Mingwei, YANG Pengju, HE Jie. Research Progress in Preparation of Porous Metal Materials by Alloy Phase Separation[J]. 材料研究学报, 2023, 37(8): 561-570.
[11]	REN Fuyan, OUYANG Erming. Photocatalytic Degradation of Tetracycline Hydrochloride by g-C₃N₄ Modified Bi₂O₃[J]. 材料研究学报, 2023, 37(8): 633-640.
[12]	WANG Hao, CUI Junjun, ZHAO Mingjiu. Recrystallization and Grain Growth Behavior for Strip and Foil of Ni-based Superalloy GH3536[J]. 材料研究学报, 2023, 37(7): 535-542.
[13]	LIU Mingzhu, FAN Rao, ZHANG Xiaoyu, MA Zeyuan, LIANG Chengyang, CAO Ying, GENG Shitong, LI Ling. Effect of Photoanode Film Thickness of SnO₂ as Scattering Layer on the Photovoltaic Performance of Quantum Dot Dye-sensitized Solar Cells[J]. 材料研究学报, 2023, 37(7): 554-560.
[14]	QIN Heyong, LI Zhentuan, ZHAO Guangpu, ZHANG Wenyun, ZHANG Xiaomin. Effect of Solution Temperature on Mechanical Properties and γ' Phase of GH4742 Superalloy[J]. 材料研究学报, 2023, 37(7): 502-510.
[15]	GUO Fei, ZHENG Chengwu, WANG Pei, LI Dianzhong. Effect of Rare Earth Elements on Austenite-Ferrite Phase Transformation Kinetics of Low Carbon Steels[J]. 材料研究学报, 2023, 37(7): 495-501.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed