封面
声明
致谢
中文摘要
英文摘要
目录
变量注释表
1 绪论
1.1选题背景及意义(Research Background and Significance)
1.2激光焊接技术(The Technology of Laser Welding)
1.3304奥氏体不锈钢激光焊接研究现状(The Research Situation of Laser Welding for 304 Austenitic Stainless Steel)
1.4 304 奥氏体不锈钢光纤激光焊接数值模拟研究概况( The Research Situation of Numerical Simulation for Laser Welding 304 Austenitic Stainless Steel)
1.5本论文主要工作(The Main Work)
2 试验材料、设备及方法
2.1试验材料(Experimental Materials)
2.2 试验设备(Experimental Equipments)
2.3 试验方法(Experimental Methods)
2.4 本章小结(Chapter Summary)
3 304奥氏体不锈钢光纤激光焊接接头显微组织及力学性能
3.1 304奥氏体不锈钢光纤激光焊接接头组织凝固模式分析(The Analysis of Microstructure Solidification Model of Welded Joints for 304 Austenitic Stainless Steel in Fiber Laser Welding)
3.2 304奥氏体不锈钢光纤激光焊接接头显微硬度分析(The Microhardness of Welded Joints for 304 Austenitic Stainless Steel in Fiber Laser Welding)
3.3 304奥氏体不锈钢光纤激光焊接接头拉伸性能及断口分析(The Tensile Properties and Fracture Analysis of Welded Joints for 304 Austenitic Stainless Steel in Fiber Laser Welding)
3.4本章小结(Chapter Summary)
4 工艺参数对焊接接头形貌及力学性能影响
4.1 激光功率对焊接接头形貌及力学性能影响( The Effect of Laser Powers on Morphologies and Mechanical Properties of Welded Joints)
4.2焊接速度对焊接接头形貌及力学性能影响(The Effect of Welding Speedson Morphologies and Mechanical Properties of Welded Joints)
4.3 离焦量对焊接接头形貌及力学性能影响( The Effect of Defocusing Distanceson Morphologies and Mechanical Properties of Welded Joints)
4.4本章小结(Chapter Summary)
5 304奥氏体不锈钢光纤激光焊接温度场数值模拟
5.1 304奥氏体不锈钢光纤激光焊接温度场有限元模型的建立(The Establishment of Finite Element Model on Temperature Field of Fiber Laser Welding for 304 Austenitic Stainless Steel)
5.2 热源模型(Heat Source Model)
5.3温度场计算结果及分析(The Analysis and Results of Temperature Field)
5.4光纤激光对接焊不同点的热循环曲线(The Thermal Cycling Curve of Different Points for Butt Welding in Fiber Laser Welding)
5.5本章小结(Chapter Summary)
6 304不锈钢薄板光纤激光焊接焊缝轮廓形貌模拟
6.1 1mm厚304不锈钢光纤激光堆焊焊缝轮廓形貌模拟(Simulation of Weld Profile Morphologies in Fiber Laser Surfacing Welding for 304 Stainless Steel with 1mm Thick)
6.2 1 mm 厚 304 不锈钢光纤激光对接焊焊缝轮廓形貌模拟(Simulation of Weld Profile Morphologies in Fiber Laser Butt Welding for 304 Stainless Steel with 1mm Thick)
6.3本章小结(Chapter Summary)
7 总结与展望
7.1 总结(Conclusions)
7.2展望(Future Work)
参考文献
作者简历
学位论文数据集