锻压技术

钛合金粉末冶金β相区热加工组织行为

英文标题：Microstructure behavior of hot working in β phase zone of titanium alloy by powder metallurgy

作者：黄志涛1 杨毅2

分类号：TG456.3

出版年,卷(期):页码：2025,50(1):33-41

摘要：

针对钛合金粉末冶金锻造技术，开展了粉末TC4钛合金单相区锻造及热处理对组织及性能影响的研究。结果表明：粉末烧结态TC4钛合金的晶粒组织相对细小，存在较多孔洞及大角度晶界；单火次锻造条件下，无论变形速度快慢，TC4钛合金锻造后晶粒均未出现异常长大现象，晶粒尺寸可控性较好。粉末态TC4钛合金经两火次β锻造后，晶粒尺寸明显增长，晶粒尺寸控制不佳。单相区一火次、两火次锻造的TC4钛合金的力学性能均可满足标准要求；TC4钛合金粉末锻件经β相区热处理后，未发现异常长大现象，晶粒尺寸可控性更强。

For titanium alloy powder metallurgy forging technology, the influences of single-phase forging and heat treatment on the microstructure and properties of powder metallurgy TC4 titanium alloy were studied. The results show that the grain structure of powder sintered TC4 titanium alloy is relatively small, with many pores and large angle grain boundaries. Under the condition of single-fire forging, there is no abnormal growth phenomenon in grain of TC4 titanium alloy after forging, and the deformation speed, whether fast or slow, indicating good controllability of grain size. After two-fire β forging of TC4 titanium alloy in powder state, the grain size increases significantly, and the grain size control is not obvious. The mechanical properties of single-fire and two-fire forging in single-phase zone meet the standard requirements. After heat treatment in β phase zone of TC4 titanium alloy powder forgings, no abnormal growth phenomenon is found, and the controllability of grain size is stronger.

基金项目：

总装联合基金资助项目

作者简介：黄志涛（1982－），男，博士，高级工程师 E-mail：13910384324@163.com

参考文献：

[1] 魏科，陈飞，黄龙，等. 航空大型复杂钛框预锻成形初始毛坯优化[J]. 塑性工程学报，2024，31(1): 99-107.

Wei K, Chen F, Huang L, et al. Optimization of initial billet for preforging forming of aviation large-sized complex titanium alloy bulkhead[J]. Journal of Plasticity Engineering, 2024, 31(1): 99-107.

[2] 弭光宝，孙圆治，吴明宇，等. 机器学习在航空发动机钛合金研究中的应用进展[J]. 航空制造技术, 2024, 67(1/2): 66-78.

Mi G B, Sun Y Z, Wu M Y, et al. Applications of machine learning on aero-engine titanium alloys[J]. Aeronautical Manufacturing Technology, 2024, 67(1/2): 66-78.

[3] 韩建业，刘汉源，张鹏省，等. 航空航天用TA18钛合金管材研究进展[J]. 内燃机与配件，2023(24): 114-116.

Han J Y, Liu H Y, Zhang P S, et al. Research progress in TA18 titanium alloy tubes for aero space applications[J]. Internal Combustion Engine & Parts, 2023(24): 114-116.

[4] 阚延勇，苏方正，徐曦荣，等.工业用钛及钛合金材料的应用现状[J]. 上海化工，2023，48(6): 58-60.

Kan Y Y, Su F Z, Xu X R, et al. Application status of industrial titanium and titanium alloy materials[J]. Shanghai Chemical Industry, 2023, 48(6): 58-60.

[5] 白东辉，汤育玺. 锻造工艺对TC17钛合金锻件组织性能的影响[J]. 热加工工艺, 2020, 49(23): 84-86.

Bai D H, Tang Y X. Influence of forging process on microstructure and mechanical properties of TC17 Ti-alloy forgings[J]. Hot Working Technology, 2020, 49(23): 84-86.

[6] 邓雨亭，李四清，黄旭，等. 航空发动机用β锻TC17钛合金时效析出行为研究[J]. 航空制造技术，2018，61(9): 59-62.

Deng Y T, Li S Q, Hung X, et al. Aging precipitate of beta forged TC17 titanium alloy for aero-engine[J]. Aeronautical Manufacturing Technology, 2018, 61(9): 59-62.

[7] 官杰，刘建荣，雷家峰，等．TCl8钛合金的组织和性能与热处理制度的关系[J]．材料研究学报，2009，23(1)：77-82.

Guan J, Liu J R, Lei J F, et al. The relationship of heat treatment-microstructure-mechanical properties of the TC18 titanium alloy[J]. Chinese Journal of Materials Research, 2009, 23(1): 77-82.

[8] 陈玉勇，叶园，张宇，等. 粉末冶金制备TiAl合金研究进展[J]. 稀有金属材料与工程，2023，52(11): 4002-4010.

Chen Y Y, Ye Y, Zhang Y, et al. Research progress on TiAl alloy prepared by powder metallurgy[J]. Rare Metal Materials and Engineering, 2023, 52(11): 4002-4010.

[9] 孙丽娜. 基于粉末锻造的钛基机械连杆成形工艺研究[J]．热加工工艺，2017，46(13): 144-146.

Sun L N. Study on forming process of titanium-based mechanical connecting rod based on powder forging[J]. Hot Working Technology, 2017, 46(13): 144-146.

[10]赵张龙，李晖，郭鸿镇，等. 粉末钛合金锻造技术研究进展[J]. 精密成形工程, 2015, 7(6): 31-35.

Zhao Z L, Li H, Guo H Z, et al. A review on the development of titanium powder forging technology[J]. Journal of Netshape Forming Engineering, 2015, 7(6): 31-35.

[11]王海英，杨芳，郭志猛，等. 锻造粉末冶金Ti6Al4V合金的性能和组织研究[J]. 稀有金属材料与工程，2020，49(8): 2855-2860.

Wang H Y, Yang F, Guo Z M, et al. Properties and microstructure of forged powder metallurgy Ti6Al4V alloy[J]. Rare Metal Materials and Engineering, 2020, 49(8): 2855-2860.

[12]GB/T 6394—2017，金属平均晶粒度测定方法[S].

GB/T 6394—2017，Determination of estimating the average grain size of metal [S].

[13]郭志猛，张策，王海英，等. 基于氢化脱氢钛粉制备低成本高性能钛合金[J]. 钛工业进展，2019，36(5): 41-46.

Guo Z M, Zhang C, Wang H Y, et al. Preparation of low-cost and high-performance titanium alloys based on HDH titanium powder[J]. Titanium Industry Progress, 2019, 36(5): 41-46.

[14]刘诗超,王善林,张元敏,等.焊接速度对TA15钛合金激光焊接接头组织和性能的影响[J].中国激光,2024,51(20):30-39.

Liu S C, Wang S L, Zhang Y M, et al. Effect of welding speed on microstructure and properties of laser welded joint of TA15 titanium alloy[J]. Chinese Journal of Lasers,2024,51(20):30-39.

服务与反馈：

【文章下载】【加入收藏】