机电工程技术2025，Vol.54Issue(5)：16-22,7.DOI:10.3969/j.issn.1009-9492.2024.00130
考虑脆性相TiC颗粒的镍基高温合金磨削仿真研究
Simulation Study on Grinding of Nickel Based Superalloy Considering Brittle TiC Particle
摘要
Abstract
The reinforcing phase of nickel-based superalloy GH4169 is composed of high hardness compound TiC,which will have a certain impact on the surface quality of the workpiece during machining.Based on the basic theory of grinding and the J-C constitutive equation of the material,the orthogonal grinding model of a single abrasive grain of nickel-based superalloy GH4169 containing a single TiC particle is established by using ABAQUS simulation software,the deformation of the matrix material and the interaction process between abrasive particles and brittle phase particles during the grinding process are studied,and the removal process of grinding force and particles and the evolution of stress field during the grinding process are analyzed under the condition that the particles are located 0.05 μm above the grinding path,at different depths below the path and along the path.The simulation results show that when the particles are located below the grinding path,they have little influence on the machining process,and in the other two cases,they have a greater impact on the grinding force.When the particles are located above the grinding path,the main form of removal is crushing.When the particles follow the grinding path,the removal process goes through three stages:crack initiation,crack propagation and complete particle fracture,and the stress and strain fields are fragmented in both cases,indicating that the position of the particles plays an important role in determining the stress propagation mechanism.The results can provide a reference for further exploring the microstructure evolution mechanism of GH4169 during the grinding process.关键词
脆性相/镍基高温合金/磨削力/应力场/有限元模拟Key words
brittle phase/nickel based superalloy/grinding force/stress field/finite element simulation分类
矿业与冶金引用本文复制引用
陈宏轩,曾鑫,陈帅..考虑脆性相TiC颗粒的镍基高温合金磨削仿真研究[J].机电工程技术,2025,54(5):16-22,7.基金项目
湖南省教育厅研究项目优秀青年项目(22B0584) （22B0584）
