热机载荷下GH4169G车削喷丸加工表面完整性的演化机理

doi:10.3969/j.issn.1004-132X.2025.04.015

中国机械工程 ›› 2025, Vol. 36 ›› Issue (04): 780-789.DOI: 10.3969/j.issn.1004-132X.2025.04.015

热机载荷下GH4169G车削喷丸加工表面完整性的演化机理

何喆¹;李佳乐¹;史恺宁¹;樊昱昌³;黄新春²*

1.西北工业大学航空发动机高性能制造工业和信息化部重点实验室，西安，710072
2.西北工业大学科学技术研究院，西安，710072
3.火箭军工程大学智剑实验室，西安，710025

出版日期:2025-04-25 发布日期:2025-05-22
作者简介:何喆，男，1994年生，博士研究生。研究方向为航空发动机先进制造技术，高温合金表面完整性演化机理，难加工材料抗疲劳制造。
基金资助:
中央高校基础研究基金(HYGJZN202319)

Evolution Mechanism of Surface Integrity of GH4169G Turning-shot Peening under Thermal and Mechanical Loads

HE Zhe¹;LI Jiale¹;SHI Kaining¹;FAN Yuchang³;HUANG Xinchun²*

1.Key Laboratory of High Performance Manufacturing for Aero Engine(Ministry of Industry
and Information Technology),Northwestern Polytechnical University,Xian,710072
2.Office of Science and Technology,Northwestern Polytechnical University,Xian,710072
3.Zhijian Laboratory,Rocket Force University of Engineering,Xian,710025

Online:2025-04-25 Published:2025-05-22

摘要/Abstract

摘要： 以航空发动机用镍基高温合金GH4169G为研究对象，开展服役条件下车削喷丸复合加工表面完整性演化机理研究。通过模拟服役环境的热机载荷试验，分析了热载荷、机械载荷以及热机载荷对表面完整性的作用形式，建立了表面完整性控制的热机载荷模型和基于余弦函数控制因子的残余应力及显微硬度演化模型，掌握了热机载荷作用下的残余应力松弛规律和显微硬度及表层微观组织变化规律。研究结果为掌握镍基高温合金在服役环境下加工表面完整性的演化形式提供了基础数据，进一步优化了表面完整性控制工艺。

关键词: 高温合金GH4169G, 车削喷丸复合加工, 服役环境, 表面完整性演化

Abstract: A study of the evolution mechanism of surface integrity of turning-shot peening composite machining under service load conditions was carried out for the nickel-based superalloys GH4169G for aero-engines. The forms of thermal, mechanical, and thermo-mechanical loads on surface integrity were analyzed by simulating thermo-mechanical load tests under service environments. The thermo-mechanical loading model for surface integrity control and the residual stress and microhardness evolution model with cosine function control factor were established. The laws of residual stress relaxation under thermo-mechanical loading and the laws of microhardness changes and surface microstructure changes were mastered. The results provide basic data for mastering the evolution of surface integrity of nickel-based superalloys processed under service environments. The surface integrity control processes were further optimized.

Key words: superalloy GH4169G, combined turning and shot peening, service environment, evolution of surface integrity

中图分类号:

V216.8

何喆1, 李佳乐1, 史恺宁1, 樊昱昌3, 黄新春2. 热机载荷下GH4169G车削喷丸加工表面完整性的演化机理[J]. 中国机械工程, 2025, 36(04): 780-789.

HE Zhe1, LI Jiale1, SHI Kaining1, FAN Yuchang3, HUANG Xinchun2. Evolution Mechanism of Surface Integrity of GH4169G Turning-shot Peening under Thermal and Mechanical Loads[J]. China Mechanical Engineering, 2025, 36(04): 780-789.

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链接本文: https://www.cmemo.org.cn/CN/10.3969/j.issn.1004-132X.2025.04.015

https://www.cmemo.org.cn/CN/Y2025/V36/I04/780

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热机载荷下GH4169G车削喷丸加工表面完整性的演化机理

Evolution Mechanism of Surface Integrity of GH4169G Turning-shot Peening under Thermal and Mechanical Loads

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