| GH4169合金惯性摩擦焊接过程组织计算与预测 |
| |
| 引用本文： | 李付国,聂蕾,李庆华,段立宇. GH4169合金惯性摩擦焊接过程组织计算与预测[J]. 焊接学报, 2002, 23(1): 30-33 |
| |
| 作者姓名： | 李付国 聂蕾 李庆华 段立宇 |
| |
| 作者单位： | 西北工业大学,西安,710072 |
| |
| 基金项目： | 航空基础科学基金资助项目 ( 98H5 30 6 8 |
| |
| 摘 要： | 以高性能航空发动机涡轮盘和压气机盘为背景，采用有限元数值模拟方法，对GH4169合金模拟件的惯性摩擦焊接过程进行了分析与计算，基于金属塑性变形的物理基础，建立了GH4169合金惯性摩擦焊接过程显微组织的演化模型；通过高温合金在热成形过程中的再结晶发生条件，再结晶体积分数、晶粒尺寸与热力参数（应变速率、应变程度、成形温度）之间的映像关系，对惯性摩擦焊接热力影响区的再结晶组织进行了模拟计算。从而为合理地制定焊接热力规范，提高GH4169合金的焊接性能和接头质量提供了参考。
|
| 关 键 词： | GH4169合金 惯性摩擦焊 组织计算 热力规范 |
| 文章编号： | 0253-360X(2002)01-30-04 |
| 收稿时间： | 2001-07-19 |
Microstructure Simulation and Prediction of IN-718 Superalloy in Inertial Friction Welding |
| |
| LI Fu-guo,NIE Lei,LI Qing-hua and DUAN Li-yu. Microstructure Simulation and Prediction of IN-718 Superalloy in Inertial Friction Welding[J]. Transactions of The China Welding Institution, 2002, 23(1): 30-33 |
| |
| Authors: | LI Fu-guo NIE Lei LI Qing-hua DUAN Li-yu |
| |
| Affiliation: | College of Materials Science and Engineering, Northwestern Polytechnical University, Xi''an 710072, China,College of Materials Science and Engineering, Northwestern Polytechnical University, Xi''an 710072, China,College of Materials Science and Engineering, Northwestern Polytechnical University, Xi''an 710072, China and College of Materials Science and Engineering, Northwestern Polytechnical University, Xi''an 710072, China |
| |
| Abstract: | Based on the study of high quality turbo disk and compressor disk of aero engine,the inertial friction welding process of IN 718 is analyzed and simulated with finite element numerical simulation method (FEM),and based on the physical theory of metal plastic deformation,a model of microstructure evolution of inertial friction welding process of IN 718 is developed.Meanwhile,with the theory of recrystallization of superalloy in thermal deformation process and the corresponding relationships among recrystallization volume,grain size and thermodynamics parameters (strain rate,strain,forming temperature),the numerical simulation of the recrystallization microstructure of the heat affected zone in inertial friction welding is carried out,therefore,a sound reference is provided for the optimum choice of the welding thermodynamics criteria,as well as for the improvement of the welding performance of IN 718. |
| |
| Keywords: | IN 718 alloy Inertial friction welding Microstructure simulation Thermodynamics criteria |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《焊接学报》浏览原始摘要信息 |
|
点击此处可从《焊接学报》下载免费的PDF全文 |
|
