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基于激光粉床熔融镍合金（Inconel 718）加热凝固分析的数值模拟和实验分析
Patcharapit Promoppatum, Shi-Chune Yao, P. Chris Pistorius, Anthony D. Rollett
《工程（英文）》 2017年 第3卷 第5期 页码 685-694 doi: 10.1016/J.ENG.2017.05.023
激光修复Inconel 718镍基高温合金过程中Laves相的原位调控新方法 Article
隋尚, 李浩胜, 李祚, 赵轩, 马良, 陈静
《工程（英文）》 2022年 第16卷 第9期 页码 239-246 doi: 10.1016/j.eng.2021.08.030
激光修复Inconel 718 高温合金通常由组织差异明显的基材区锻造组织和激光修复区熔覆组织两部分构成。其中，激光熔覆区内Laves 相的尺寸、形貌和分布对激光修复Inconel 718 高温合金的力学性能有重要影响。
关键词： 激光修复 原位激光热处理 Inconel 718合金 Laves相
Experimental study of surface integrity and fatigue life in the face milling of Inconel 718
Xiangyu WANG, Chuanzhen HUANG, Bin ZOU, Guoliang LIU, Hongtao ZHU, Jun WANG
《机械工程前沿（英文）》 2018年 第13卷 第2期 页码 243-250 doi: 10.1007/s11465-018-0479-9
The Inconel 718 alloy is widely used in the aerospace and power industries. The machining-induced surface integrity and fatigue life of this material are important factors for consideration due to high reliability and safety requirements. In this work, the milling of Inconel 718 was conducted at different cutting speeds and feed rates. Surface integrity and fatigue life were measured directly. The effects of cutting speed and feed rate on surface integrity and their further influences on fatigue life were analyzed. Within the chosen parameter range, the cutting speed barely affected the surface roughness, whereas the feed rate increased the surface roughness through the ideal residual height. The surface hardness increased as the cutting speed and feed rate increased. Tensile residual stress was observed on the machined surface, which showed improvement with the increasing feed rate. The cutting speed was not an influencing factor on fatigue life, but the feed rate affected fatigue life through the surface roughness. The high surface roughness resulting from the high feed rate could result in a high stress concentration factor and lead to a low fatigue life.
关键词： roughness hardness residual stress microstructure fatigue life
Quy Bau Nguyen, Mui Ling Sharon Nai, Zhiguang Zhu, Chen-Nan Sun, Jun Wei, Wei Zhou
《工程（英文）》 2017年 第3卷 第5期 页码 695-700 doi: 10.1016/J.ENG.2017.05.012
本研究中使用不同的粉末表征技术对铬镍铁合金的原始粉末和回收粉末在粉末床增材制造（AM）上的流动特性、行为特征进行研究。结果发现，选择性激光熔化（SLM）工艺的粒径分布（PSD）范围通常在15 ～ 63 μm 之间。原始的铬镍铁合粉末的流量约为28 s·(50 g)–1，组装密度是60%。流变测试结果表明，原始粉末与回收粉末相比具有更好的流动性。讨论了两种粉末之间的相互关系。运用铬镍铁合金粉末已经成功打印出了螺旋桨。实验结果表明铬镍铁合金粉末适用于增材制造（AM），本研究为生产增材制造粉末提供参考。
标题 作者 时间 类型 操作
基于激光粉床熔融镍合金（Inconel 718）加热凝固分析的数值模拟和实验分析
Patcharapit Promoppatum, Shi-Chune Yao, P. Chris Pistorius, Anthony D. Rollett
期刊论文
Experimental study of surface integrity and fatigue life in the face milling of Inconel 718
Xiangyu WANG, Chuanzhen HUANG, Bin ZOU, Guoliang LIU, Hongtao ZHU, Jun WANG
期刊论文
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