热拉拔-退火协同调控TB13钛合金再结晶与强塑性匹配机制

苏豪; 康琴; 钟勇; 张泽宇

doi:10.7513/j.issn.1004-7638.2026.01.008

热拉拔-退火协同调控TB13钛合金再结晶与强塑性匹配机制

doi: 10.7513/j.issn.1004-7638.2026.01.008

苏豪^{1, 2,},
康琴^{1, 2},
钟勇^{1, 2},
张泽宇^{1, 2}

1.
成都先进金属材料产业技术研究院股份有限公司, 四川成都 610300
2.
钒钛资源综合利用国家重点实验室, 四川攀枝花 617000

详细信息

作者简介:
苏豪，1994年出生，男，四川广安人，硕士，副研究员，从事钛合金棒线材基础研究和开发工作，E-mail：oksuhao2008@163.com

中图分类号: TG146.2+3,
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- 被引次数: 0
出版历程
- 收稿日期: 2025-08-20
- 录用日期: 2025-09-28
- 修回日期: 2025-09-26
- 网络出版日期: 2026-02-28
- 刊出日期: 2026-02-28

Synergistic regulation of hot drawing and annealing on recrystallization and strength-ductility matching in TB13 titanium alloy

SU Hao^{1, 2
,},
KANG Qin^{1, 2},
ZHONG Yong^{1, 2},
ZHANG Zeyu^{1, 2}

1.
Chengdu Advanced Metal Materials Industry Technology Research Institute Co., Ltd., Chengdu 610300, Sichuan, China
2.
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China

摘要

摘要: 采用多道次热拉拔（总变形量74.4%）结合不同梯度退火工艺（710～740 ℃），探究TB13钛合金丝材组织性能及织构演变规律。结果表明，随着热拉拔减径量增加，合金变形机制由加工硬化主导逐渐转变为动态再结晶主导的软化过程。退火温度对静态再结晶进程具有梯度调控作用，低温退火（710～720 ℃）以回复过程为主，强度保持在810～785 MPa，但延伸率较低，仅为22%～24%；中高温度退火（730～740 ℃）通过再结晶织构重构与位错密度重置，实现了强度736～760 MPa与延伸率29%～31%的良好强塑性匹配。织构分析表明，热拉拔诱导形成强烈的<101>//拉拔方向丝织构（取向密度4.9），而退火处理通过再结晶织构重构实现多组元弱织构（<212>/<001>/<111>取向密度2.28～2.74），显著降低了材料的各向异性。
- 热拉拔 /
- 热处理 /
- TB13线材 /
- 动态再结晶 /
- 显微组织 /
- 织构
Abstract: The microstructure and texture evolution of TB13 titanium alloy wire were investigated by multi-pass hot drawing (total deformation of 74.4%) combined with different gradient annealing processes (710-740 ℃). The results show that with the increase of hot drawing reduction, the alloy undergoes a transformation from work hardening dominated to dynamic recrystallization softening. Annealing temperature has a gradient regulation effect on the static recrystallization process. Low-temperature annealing (710-720 ℃) is mainly a recovery process, with strength maintained at 810-785 MPa, but the elongation is relatively low, only 22%-24%. Medium-high temperature annealing (730-740 ℃) achieved a good strength-plasticity match of 736-760 MPa in strength and 29%-31% in elongation through recrystallization texture reconstruction and dislocation density reset. Texture analysis shows that hot drawing induces a strong <101> // drawing direction wire texture (orientation density of 4.9), while annealing treatment achieves multi-component weak texture (<212>/<001>/<111> orientation density of 2.28-2.74) through recrystallization texture reconstruction, reducing the anisotropic characteristics.
- hot drawing /
- heat treatment /
- TB13 wire /
- dynamic recrystallization /
- microstructure /
- texture

HTML全文

图 1 Ø9.4 mm规格TB13盘圆金相组织和Jmatpro相变点计算结果

（a）金相组织；（b）Jmatpro相变点计算

Figure 1. Metallographic microstructure and T_βcalculation results of Ø9.4 mm TB13 wire

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图 2 热拉拔装置和试验流程示意

（a）装置；（b）试验流程

Figure 2. Schematic diagram of thermal drawing equipment and experimental flow

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图 3 金相和室温拉伸试样示意

（a）金相试样；（b）室温拉伸试样

Figure 3. Schematic diagram of metallographic and tensile specimens

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图 4 TB13钛合金固溶态样品的OM和EBSD分析

（a）金相；（b）晶粒取向特征；（c）大小角度晶界；（d）KAM；（e）反极图

Figure 4. OM image and EBSD analysis of the solution-treated TB13 titanium alloy

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图 5 热拉状态和退火态TB13钛合金样品的大角度晶界和小角度晶界所占比例

（a）拉拔态样品；（b）退火态样品

Figure 5. Proportion of HAGBs and LAGBs of TB13 titanium alloy samples in different hot-drawn and annealed states

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图 6 热拉拔各道次TB13钛合金样品EBSD分析

（a）～（d）IPF；（e）～（h）大小角度晶界；（i）～（l）KAM;(a) (e)( i)Ø7.0 mm； (b)(f)(j)Ø6.1 mm；(c)(g)(k) Ø5.2 mm；(d)(h)(l)Ø4.3 mm

Figure 6. EBSD analysis of TB13 titanium alloys at different hot-drawn wires

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图 7 不同退火工艺下的热拉态Ø4.3 mm TB13钛合金样品的EBSD分析

Figure 7. EBSD results of Ø4.3 mm hot-drawn TB13 wires at different annealing temperature

（a）～（c）710 ℃；（d）～（f）720 ℃；（g）～（i）730 ℃；（j）～（l）740 ℃

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图 8 不同的热拉态和退火态TB13钛合金β晶粒的反极图

（a）～（d）热拉态Ø7.0～4.3 mm；（e）～（h）710 ℃-740 ℃-1 h

Figure 8. Reverse polar figures of hot-drawn and annealed TB13 wires at different states

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图 9 热拉态和退火态TB13钛合金的工程应力-应变曲线

（a）热拉态;（b）退火态

Figure 9. Engineering stress-strain curves of TB13 titanium alloy in different hot-drawn and annealed states

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表 1 TB13钛合金盘圆化学成分

Table 1. Chemical composition of TB13 alloy %

Al	V	Fe	C	H	O	N	Ti
3.94	21.70	0.069	0.0095	0.015	0.100	0.010	Bal.

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表 2 热拉态和退火态TB13钛合金力学性能、大小角度晶界及位错密度结果

Table 2. Mechanical properties, proportion of HAGBs and LAGBs and dislocation density results of the hot-rolled and annealed TB13 titanium alloy

Sample states	Diameter/mm	Annealing temperature/℃	UTS/MPa	A /%	Proportion of HAGBs and LAGBs/%		Dislocation density/m⁻²
Sample states	Diameter/mm	Annealing temperature/℃	UTS/MPa	A /%	HAGBs	LAGBs	Dislocation density/m⁻²
Hot-drawn	7.0		775	20	31.5	68.5	0.87B×10⁶
Hot-drawn	6.1		806	17	19.5	80.5	1.08B×10⁶
Hot-drawn	5.2		1068	14	8.3	91.7	1.18B×10⁶
Hot-drawn	4.3		872	23	34.5	65.5	0.99B×10⁶
Annealed	4.3	710	810	22	26.1	73.9	0.98B×10⁶
Annealed	4.3	720	785	25	28.7	71.3	0.90B×10⁶
Annealed	4.3	730	760	29	55.0	35.0	0.65B×10⁶
Annealed	4.3	740	736	31	92.8	7.2	0.49B×10⁶

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