| 镍基高温合金GH4169磨削参数对表面完整性影响 |
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| 引用本文： | 黄新春,张定华,姚倡锋,任敬心.镍基高温合金GH4169磨削参数对表面完整性影响[J].航空动力学报,2013,28(3):621-628. |
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| 作者姓名： | 黄新春 张定华 姚倡锋 任敬心 |
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| 作者单位： | 西北工业大学机电学院现代设计与集成制造技术教育部重点实验室,西安,710072 |
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| 基金项目： | 国家自然科学基金(50975237,51005184) |
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| 摘 要： | 研究了用单晶刚玉砂轮磨削镍基高温合金GH4169时,磨削参数对表面完整性中的表面特征(表面粗糙度、表面形貌、表面显微硬度和表面残余应力)的影响,以期优化磨削参数.砂轮速度依次选择15,20,25m/s,磨削深度分别选择50,100,150μm,工件速度分别选择5,10,15 m/min.研究结果表明:表面粗糙度对工件速度的变化最敏感,表面显微硬度对砂轮速度变化最敏感,表面残余应力对砂轮速度变化最敏感;同时表明了磨削参数对磨削表面形貌、显微硬度梯度、微观组织、残余应力梯度的影响,揭示了表面完整性中的变质层形成规律.其塑性变形层在5～10μm,显微硬度变化影响层为80～100 μm,残余应力影响层厚度为80～200μm,其为磨削镍基高温合金表面完整性控制研究提供相关的实验数据基础.
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| 关 键 词： | GH4169高温合金 表面完整性 表面粗糙度 表面形貌 显微硬度 残余应力 |
| 收稿时间： | 4/5/2012 12:00:00 AM |
Effects of grinding parameters on surface integrity of GH4169 nickel-based superalloy |
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| HUANG Xin-chun,ZHANG Ding-hu,YAO Chang-feng and REN Jing-xin.Effects of grinding parameters on surface integrity of GH4169 nickel-based superalloy[J].Journal of Aerospace Power,2013,28(3):621-628. |
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| Authors: | HUANG Xin-chun ZHANG Ding-hu YAO Chang-feng and REN Jing-xin |
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| Affiliation: | Ministry of Education Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, School of Mechatronics, Northwestern Polytechnical University, Xi'an 710072, China;Ministry of Education Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, School of Mechatronics, Northwestern Polytechnical University, Xi'an 710072, China;Ministry of Education Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, School of Mechatronics, Northwestern Polytechnical University, Xi'an 710072, China;Ministry of Education Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, School of Mechatronics, Northwestern Polytechnical University, Xi'an 710072, China |
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| Abstract: | |
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| Keywords: | GH4169 superalloy surface integrity surface roughness microstructure surface topography microhardness residual stresses |
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