Mechanism of Ultrasonic Cavitation and Micro-Abrasive Particle Synergistic Polishing for Modification of TC17 Titanium Alloy

doi:10.3969/j.issn.1004-132X.2026.07.012

China Mechanical Engineering ›› 2026, Vol. 37 ›› Issue (7): 1635-1640.DOI: 10.3969/j.issn.1004-132X.2026.07.012

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Mechanism of Ultrasonic Cavitation and Micro-Abrasive Particle Synergistic Polishing for Modification of TC17 Titanium Alloy

CHUAI Shida¹^,²(), YE Linzheng¹^,²(), ZHU Xijing¹^,², LIU Yao¹^,², WANG Runyu¹^,²

^1.School of Mechanical Engineering，North University of China，Taiyuan，030051
^2.Shanxi Key Laboratory of Semiconductor Ultraprecision Machining Technology and Intelligent Equipment，Taiyuan，030051

Received:2025-11-20 Online:2026-07-25 Published:2026-08-18
Contact: YE Linzheng

超声空化微磨粒协同抛光改性TC17钛合金的机理

啜世达¹^,²(), 叶林征¹^,²(), 祝锡晶¹^,², 刘瑶¹^,², 王润宇¹^,²

^1.中北大学机械工程学院, 太原, 030051
^2.半导体超精密加工技术与智能装备山西省重点实验室, 太原, 030051

通讯作者: 叶林征
作者简介:啜世达，男，1998年生，博士研究生。研究方向为超精密智能制造、特种加工技术。发表论文5篇。E-mail：chuaisd@163.com
叶林征（通信作者），男，1990年生，教授、博士研究生导师。研究方向为超精密与特种加工技术、超声空化理论及应用、机器人、智能制造。发表论文60余篇。E-mail：lz09020141@163.com
基金资助:
国家自然科学基金(52375470);国家自然科学基金(52005455);国家自然科学基金(51975540);中国航空发动机集团有限公司航空齿轮制造技术创新中心开放基金(AGMTIC-KFKT-202404);山西省专利转化专项计划(20250024)

Abstract

Abstract:

To improve the surface quality and mechanical properties of TC17 titanium alloy for aero-engine blades， this paper proposes a synergistic polishing modification method using ultrasonic cavitation and micro-abrasive particles. A mathematical model for bubble evolution and heterogeneous nucleation rate prediction is established， incorporating the perturbation effects of micro-abrasives. A high-speed photography and polishing experimental platform is developed to investigate the effects of ultrasonic frequency on cavitation behavior and modification performance. The experimental results show that at an ultrasonic frequency of 20 kHz， the cavitation cloud exhibits the strongest aggregation and directionality， with a more pronounced collapse impact. Compared with that at 40 kHz， the effective modification energy at 20 kHz is increased by 38.5%. In comparison with the original sample， surface roughness is reduced by 24.9%， microhardness is increased by 16.0%， residual compressive stress is increased by 134.1%， and the width of surface microstructural features is refined by 28.3%. This study reveals the underlying mechanism of ultrasonic cavitation and micro-abrasive synergistic polishing modification.

Key words: ultrasonic cavitation, polishing modification, bubble dynamics, micro-abrasive particles, TC17 titanium alloy

摘要：

针对航空发动机叶片TC17钛合金表面质量与力学性能的提升需求，提出了超声空化微磨粒协同抛光改性方法，构建了考虑微磨粒扰动的空泡演化和非均质成核速率预测数学模型，搭建了高速摄影及抛光改性试验平台，研究了超声频率对空化行为和改性效果的影响。结果表明，超声频率20 kHz下的空泡云聚集性和指向性最强，空泡溃灭冲击作用更显著，有效改性能量较40 kHz提高38.5%。相较于原始样品，改性后样品的表面粗糙度减小24.9%，显微硬度提高16.0%，残余压应力提高134.1%，表层金相组织宽度减小28.3%。研究揭示了超声空化微磨粒协同抛光改性机理。

关键词: 超声空化, 抛光改性, 空泡动力学, 微磨粒, TC17钛合金

CLC Number:

TH162

CHUAI Shida, YE Linzheng, ZHU Xijing, LIU Yao, WANG Runyu. Mechanism of Ultrasonic Cavitation and Micro-Abrasive Particle Synergistic Polishing for Modification of TC17 Titanium Alloy[J]. China Mechanical Engineering, 2026, 37(7): 1635-1640.

啜世达, 叶林征, 祝锡晶, 刘瑶, 王润宇. 超声空化微磨粒协同抛光改性TC17钛合金的机理[J]. 中国机械工程, 2026, 37(7): 1635-1640.

Figures/Tables 10

Fig. 1 Ultrasonic cavitation test benches， original surface of TC17 titanium alloy， and spatial distributions of cavitation clouds

Fig. 2 Dynamic evolution of cavitation bubbles

Fig. 3 Heterogeneous nucleation rate of bubbles

Fig. 4 Surface morphology after ultrasonic cavitation and micro-abrasive synergistic modification

Fig. 5 Quantitative results of surface microstructure

Fig. 6 Surface roughness variation

Fig. 7 Surface microhardness variation

Fig. 8 Surface metallographic structure

Fig. 9 Quantitative analysis results of the surface metallographic structure

Fig. 10 Residual stress variation

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Mechanism of Ultrasonic Cavitation and Micro-Abrasive Particle Synergistic Polishing for Modification of TC17 Titanium Alloy

超声空化微磨粒协同抛光改性TC17钛合金的机理

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