超声细颗粒轰击制备梯度纳米结构对TA15钛合金显微组织和腐蚀疲劳性能的影响

IF 5.3 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2025-05-13 DOI:10.1016/j.surfcoat.2025.132269

Lingfeng Zhang , Qianqian Wang , Jing Zhang , Yi Xiong , Huai Yao

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引用次数: 0

摘要

为了提高航空航天钛合金在恶劣条件下的使用性能，对等轴TA15钛合金进行了不同时间的超音速细颗粒轰击（SFPB）处理。对TA15钛合金SFPB处理前后的组织和性能进行了比较分析。结果表明：随着SFPB处理时间的延长，表面显微硬度、硬化层深度和残余压应力均增大；试样的强度提高，伸长率先升高后降低。在SFPB处理时间为60 s时，得到了最佳的强度塑性匹配。SFPB后，由于晶粒细化、加工硬化和高振幅残余压应力的共同作用，试样的腐蚀疲劳寿命得到了显著提高。在650 MPa的加载应力下，试样的疲劳寿命比未处理试样提高了47.9倍。

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Effect of gradient nanostructure prepared by supersonic fine particle bombardment on the microstructure and corrosion fatigue property of TA15 titanium alloy

To improve the service performance of aerospace titanium alloys under harsh conditions, the equiaxed TA15 titanium alloy was treated with supersonic fine particle bombardment (SFPB) for different time. The microstructure and properties of TA15 titanium alloy before and after SFPB treatment were compared and analyzed. The results show that with increasing SFPB treatment time, the surface microhardness, depth of hardened layer, and compressive residual stress increased. The strength of the samples improved, while the elongation first increased and then decreased. At an SFPB treatment time of 60 s, the optimal strength-plasticity match was obtained. After SFPB, the corrosion fatigue life of the samples was significantly improved due to the combined effects of grain refinement, work hardening, and high-amplitude compressive residual stress. Under a loading stress of 650 MPa, the fatigue life increased by 47.9 times compared to the untreated sample.

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来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.