Effect of Drawing Reduction on Strength-ductility of Ultra-high Strength Ti-alloy Bar

doi:10.11901/1005.3093.2025.315

Chinese Journal of Materials Research

2026, Vol. 40

Issue (8): 561-571 DOI: 10.11901/1005.3093.2025.315

SPECIAL TOPiC: TITANIUM ALLOY

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Effect of Drawing Reduction on Strength-ductility of Ultra-high Strength Ti-alloy Bar

HU Ming, WANG Qirui, QIU Jianke(

), LEI Xiaofei, ZHANG Jinhu, DONG Limin, YANG Rui

Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Cite this article:

HU Ming, WANG Qirui, QIU Jianke, LEI Xiaofei, ZHANG Jinhu, DONG Limin, YANG Rui. Effect of Drawing Reduction on Strength-ductility of Ultra-high Strength Ti-alloy Bar. Chinese Journal of Materials Research, 2026, 40(8): 561-571.

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Abstract

The effect of drawing deformation on the microstructure, texture and mechanical properties of ultra-high strength TC10 Ti-alloy bars were investigated. TC10 alloy bars with a diameter of 16.4 mm were warm-drawn to various reductions, followed by annealing and solution-aging treatments, after which microstructure and mechanical properties were characterized. The results indicate that with the increasing drawing deformation, α-grains elongate along the drawing direction and develop a strong < $10 1 ¯ 0$ > fiber texture. Grain refinement plus work-hardening collectively raise strength but reduce plasticity of the Ti-alloy bar. After annealing, recovery and recrystallization occur, leading to an initial strengthening and subsequent weakening of the < $10 1 ¯ 0$ > texture. The strength of the annealed alloy slightly decreases compared to the as-drawn state, while the ductility improves. Solution-aging treatment leads to the precipitation of fine, acicular secondary α-phases, further increasing the strength but reducing the plasticity of Ti-alloy. At a drawing deformation of 59%, the solution-aged alloy exhibits optimal comprehensive properties, achieving a tensile strength of 1402 MPa and an elongation of 11.0%. These findings provide a meaningful reference for determining the drawing process parameters of TC10 alloy bars used in fastener manufacturing.

Key words: metallic materials ultra-high strength Ti-alloy microstructure texture mechanical property

Received: 27 October 2025

ZTFLH:

TG146.2

Fund: National Key Research and Development Program of China(2022YFB3708300);Youth Innovation Promotion Association of Chinese Academy of Sciences(2022188)

Corresponding Authors: QIU Jianke, Tel: (024)23971958, E-mail: jkqiu@imr.ac.cn

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	HU Ming
	WANG Qirui
	QIU Jianke
	LEI Xiaofei
	ZHANG Jinhu
	DONG Limin
	YANG Rui

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https://www.cjmr.org/EN/10.11901/1005.3093.2025.315 OR https://www.cjmr.org/EN/Y2026/V40/I8/561

Table 1 Variation in drawing deformation with pass for TC10 alloy bar (%)

Fig.1 SEM images of as-drawn TC10 alloy with different drawing deformations (a) 0%, (b) 21.8%, (c) 41.9%, (d) 59.0%, (e) 84.3%

Fig.2 Orientation maps of α grains in as-drawn TC10 alloy with different drawing deformations (a) 0%, (b) 21.8%, (c) 41.9%, (d) 59.0%, (e) 84.3%

Fig.3 Inverse pole figures of α phase in as-drawn TC10 alloy with different drawing deformations (a) 0%, (b) 21.8%, (c) 41.9%, (d) 59.0%, (e) 84.3%

Fig.4 Mechanical properties of as-drawn TC10 alloy with different drawing deformations

Fig.5 SEM images of annealed TC10 alloy with different drawing deformations (a) 0%, (b) 21.8%, (c) 41.9%, (d) 59.0%, (e) 84.3%

Fig.6 Orientation maps of α grains in annealed TC10 alloy with different drawing deformations (a) 0%, (b) 21.8%, (c) 41.9%, (d) 59.0%, (e) 84.3%

Fig.7 Inverse pole figures of α phase in annealed TC10 alloy with different drawing deformations (a) 0%, (b) 21.8%, (c) 41.9%, (d) 59.0%, (e) 84.3%

Fig.8 Mechanical properties of TC10 alloy with different drawing deformations after annealing

Fig.9 SEM images of solution-treated and aged TC10 alloy with different drawing deformations (a) 0%, (b) 21.8%, (c) 41.9%, (d) 59.0%, (e) 84.3%

Fig.10 Orientation maps of α grains in solution-treated and aged TC10 alloy with different drawing deformations (a) 0%, (b) 21.8%, (c) 41.9%, (d) 59.0%, (e) 84.3%

Fig.11 Inverse pole figures of α phase in solution-treated and aged TC10 alloy with different drawing deformations (a) 0%, (b) 21.8%, (c) 41.9%, (d) 59.0%, (e) 84.3%

Fig.12 Mechanical properties of solution-treated and aged TC10 alloy with different drawing deformations

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