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the liquid metal to flow down to the bottom of the molten pool, which induces the circular flow in the molten pool [34]. During the SLM process, high energy laser melted 316L powder and the upper... J. Cent. South Univ. (2021) 28: 1155-1169 DOI: https://doi.org/10.1007/s11771-021-4687-9 Interface microstructure and mechanical properties of selective laser melted multilayer functionally graded......
, Harbin Institute of Technology (HIT) Abstract:Non-interlayer liquid phase diffusion welding (China Patent) and laser welding methods for aluminum matrix composite are mainly described in this paper... of the composite could be improved by increasing the laser pulse frequency. The maximum strength of the weld can reach 70% of the strength of the parent. Key words:non-interlayer liquid phase......
) was aggravated with the increase of laser energy input. In order to obtain the printed component with high densification, a moderate laser power was applied to improve the spreading of liquid metal and to inhibit... J. Cent. South Univ. (2021) 28: 1129-1143 DOI: https://doi.org/10.1007/s11771-021-4685-y Densification, microstructural features and tensile properties of selective laser melted AlMgSiScZr alloy......
J. Cent. South Univ. (2021) 28: 1111-1128 DOI: https://doi.org/10.1007/s11771-021-4684-z Effects of tantalum addition on microstructure and properties of titanium alloy fabricated by laser powder... University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract: The expanding of material library of laser powder bed fusion (L-PBF) is of great significance to the development......
rate of the CP-Ti particles to laser will be increased, thereby promoting the temperature and fluidity of liquid titanium in molten pool. Therefore, dense Ti matrix was prepared during the SLM GNPs/Ti... J. Cent. South Univ. (2021) 28: 2257-2268 DOI: https://doi.org/10.1007/s11771-021-4767-x Microstructure, mechanical properties and corrosion performance of selective laser melting Ti/GNPs composite......
J. Cent. South Univ. (2019) 26: 536-549 DOI: https://doi.org/10.1007/s11771-019-4025-7 Adsorption structures of frothers at gas–liquid interface using DFT method ZHANG Yi-bing(张一兵)1, CHEN Jian-hua... Germany, part of Springer Nature 2019 Abstract: Density functional theory (DFT) simulation was performed to investigate the adsorption mechanisms between frothers and gas–liquid interface. In water phase......
of a conventional superalloy, IN718, was investigated by confocal scanning laser microscope (CSLM). The liquid fraction during solidification was obtained as a function of real time and temperature... Solidification process of conventional superalloy by confocal scanning laser microscope MIAO Zhu-jun1, SHAN Ai-dang1, WANG Wei2, LU Jun3, XU Wen-liang3, SONG Hong-wei3 1. School of Materials......
Trans. Nonferrous Met. Soc. China 25(2015) 1446-1453 Laser surface melting AZ31B magnesium alloy with liquid nitrogen-assisted cooling Ze-qin CUI1,2, Hai-xia SHI1, Wen-xian WANG1,2, Bing-she XU1,2 1... refinement and redistribution of β-Mg17Al12 phases following rapid quenching associated with the process. Key words: magnesium alloy; laser surface melting; liquid nitrogen-assisted cooling......
激光焊接过程中残留液体金属的高速高倍在线观察温鹏1,获崎贤二1,山本元道1(1.北京市清华大学机械工程系)摘 要:采用高速摄像机和光学显微镜构成的摄像装置对激光焊接熔池后端的凝固行为进行高速高倍摄像,详细记录了柱状晶从液态熔池后部析出过程以及残留在已析出柱状晶周围的液体金属的凝固行为.采用液体Sn急冷将焊接过程中正在凝固的焊缝金属冷冻保存到室温,并与高速高倍摄像观察到的熔池后端的凝固行为进行了对比分析.对3种奥氏体不锈钢材料焊缝凝固过程中残留液体金属的存在范围进行了观察和比较.在线观察到的残留液体金属是焊缝金属......
submerged blow stirred were studied by planar laser induced fluorescence(PLIF) technology. The liquid mixing effects were analyzed by plane mixing uniformity U(t) and mixing time t95 under different...:A 文章编号:1672-7207(2019)04-0771-09 Visualization of liquid mixing process in top submerged blow stirred ZHANG Han1, ZAHNG Xiaohui1, DENG Weipeng1, ZHANG......