Mechanism of α Texture Formation of Ti-6246 Alloy Induced by β Forging Process

doi:10.11901/1005.3093.2016.606

Chinese Journal of Materials Research

2017, Vol. 31

Issue (10): 796-800 DOI: 10.11901/1005.3093.2016.606

ARTICLES

Current Issue | Archive | Adv Search

Mechanism of α Texture Formation of Ti-6246 Alloy Induced by β Forging Process

Zibo ZHAO¹(

), Guoqiang WANG^1,², Xiaolong YANG³, Jianrong LIU¹, Yulan LI¹, Rui YANG¹

1 Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
2 School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
3 Baoji Titanium Industry Co., Ltd., Baoji 721014, China

Cite this article:

Zibo ZHAO, Guoqiang WANG, Xiaolong YANG, Jianrong LIU, Yulan LI, Rui YANG. Mechanism of α Texture Formation of Ti-6246 Alloy Induced by β Forging Process. Chinese Journal of Materials Research, 2017, 31(10): 796-800.

Download:

HTML

PDF(1074KB)
Export: BibTeX | EndNote (RIS)

Abstract

The microstructure and texture of β forged Ti-6246 biscuit were studied using optical microscope (OM) and electron backscattered diffraction (EBSD). It is found that a mesh-basket like microstructure with elongated β-phase grains along the metal flow direction was formed after forging the Ti-6246 biscuit in β-phase state. The β-phase presented a strong <100> fiber texture parallel to the deformation direction. The texture components of transformed α-phase are controlled by the parent β-phase, but the intensity of the transformed α-phase is influenced by variant selection. The variant selection, the α-phase colonies with a common c-axis often situated at the prior β-phase boundary when the neighboring β-phase grains share a common {110} plane, is one of the important reasons for the strengthened α-phase texture intensity.

Key words: metallic materials Ti6246 texture variant selection

Received: 24 October 2016

ZTFLH:

TG146

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors
	Zibo ZHAO
	Guoqiang WANG
	Xiaolong YANG
	Jianrong LIU
	Yulan LI
	Rui YANG

URL:

https://www.cjmr.org/EN/10.11901/1005.3093.2016.606 OR https://www.cjmr.org/EN/Y2017/V31/I10/796

Fig.1 Microstructure of biscuit for Ti6246 alloy

Fig.2 Band contrast map (a) and inverse pole figure maps of α phase (b) and β phase (c) in forging driection (FD) for Ti6246 biscuit

Fig.3 EBSD result of {0001}/{11-20} pole figure of α phase (a) and (110)/(111) pole figure of β phase (b) within a some prior β grain marked by white box in Fig.2a

Fig.4 β phase (a) and α phase (b) texture measured by EBSD

Fig.5 Variant selection of α phase in Ti6246 alloy (a) Band contrast map of α phase within β1 and β2, and the grian boundary of β1 and β2 highlighted. (b) IPF map of α phase within β1 and β2. (c) IPF map of some special α varaiants with the c-axis parallel to common (110) of β1 and β2 (see Fig.5c) across the prior β boundary in (a). (d) (110)/(111) pole figure of prior β1 and β2 in (a), meanwhile the poles of β1 are marked by arrows and others are β2. (e) amd (f) are {0001}/{11-20} pole figures of α phase in (b) and (c), respectively

Fig.6 Calculated α texture without α variant selection from the measured β orientation in Fig.4a

[1]	Whittaker M T, Evans W J, Hurley P J, et al., Prediction of notched specimen behaviour at ambient and high temperatures in Ti6246[J]. Int. J. Fatigue, 2007, 29(9-11): 1716
[2]	Qiu J, Feng X, Ma Y, et al., Fatigue crack growth behavior of beta-annealed Ti-6Al-2Sn-4Zr-xMo (x=2, 4 and 6) alloys: Influence of microstructure and stress ratio[J]. Int. J. Fatigue 83, Part 2(2016): 150
[3]	Pederson R, Niklasson F, Skystedt F, et al., Microstructure and mechanical properties of friction- and electron-beam welded Ti-6Al-4V and Ti-6Al-2Sn-4Zr-6Mo[J]. Mater Sci. Eng. A, 2012, 552: 555
[4]	Qiu J, Ma Y, Lei J, et al., A comparative study on dwell fatigue of Ti-6Al-2Sn-4Zr-xMo(x=2 to 6) alloys on a microstructure-normalized basis[J]. Metallurgical and Materials Transactions A, 2014, 45(13): 6075
[5]	Corre S L, Forestier R, Brisset F, et al., Influence of β-forging on texture development in Ti 6246 alloy[A]. Proceedings of the 13th World Conference on Titanium[C]. John Wiley & Sons, Inc. 2016, pp. 757
[6]	Gerland M, Lefranc P, Doquet V, et al., Deformation and damage mechanisms in an α/β 6242 Ti alloy in fatigue, dwell-fatigue and creep at room temperature. Influence of internal hydrogen[J]. Mater Sci. Eng. A, 2009, 507(1-2): 132
[7]	Hagiwara M, Emura S, Blended elemental P/M synthesis and property evaluation of Ti-1100 alloy[J]. Mater Sci. Eng. A, 2003, 352(1-2): 85
[8]	L. Mendia, Estensoro F J, Mary C, et al., ffect of combined cycle fatigue on Ti6242 fatigue strength, Procedia Engineering, 2011, 10: 1809
[9]	Yang W G, Wang Q J, Zhang C B, et al.Evaluation of tensile strength of BT25Y titanium alloy in terms of equivalents[J]. Acta Metall, 2004, 40(2): 155(杨卫国,王青江,张彩碚等BT25Y钛合金拉伸强度的当量计算[J]. 金属学报, 2004, 40(2): 155-158)
[10]	Zhao Z B, Wang Q J, Hu Q M, et al., Effect of β (110) texture intensity on α-variant selection and microstructure morphology during β→α phase transformation in near α titanium alloy[J]. Acta Mater., 2017, 126: 372
[11]	Zhao Z B, Wang Q J, Liu J R, et al., Texture of Ti60 alloy precision bars and its tensile properties[J]. Acta Metall., 2015, 51(5): 561
[12]	Wang Y N, Huang J C, Texture analysis in hexagonal materials[J]. Mater. Chem. Phys., 2003, 81(1): 11
[13]	Birosca S, Buffiere J Y, Karadge M, et al., 3-D observations of short fatigue crack interaction with la2mellar and duplex microstructures in a two-phase titanium alloy[J]. Acta Mater., 2011, 59(4): 1510
[14]	Germain L, Gey N, Humbert M, et al., Analysis of sharp microtexture heterogeneities in a bimodal IMI 834 billet[J]. Acta Mater., 2005, 53(13): 3535
[15]	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(14): 5494
[16]	Bhattacharyya D, Viswanathan G B, Denkenberger R, et al., The role of crystallographic and geometrical relationships between α and β phases in an α/β titanium alloy[J]. Acta Mater., 2003, 51(16): 4679

[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