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. Coimbra, Portugal: NASA Jet Propulsion Laboratory, 2003: 203-208. [12] SAITOH K, MACHIDA T, KIYOKAWA K, TAKEMURA H. A 2D-3D integrated interface for mobile robot control using omnidirectional images......
a vacuum of 10-2 Pa. The melt was teemed through a guide tube, and atomized by a jet of Ar at 4.0 MPa. The Cu50Zr40Ti10 powder was collected and sieved in a closed system filled with inert gas......
a guide tube, and atomized by a jet of Ar at 4.0 MPa. The Cu50Zr40Ti10 powder was collected and sieved in a closed system filled with inert gas. After the mixing of the Cu50Zr40Ti10 powders and multi......
) observation were prepared by the conventional twin jet polishing technique using an electrolyte of 10% perchloric acid in methanol at -20 °C after mechanical polishing to 50 μm and cutting into disc......
and micro jet with the speed up to 400 km/h would be accompanied [17]. The high pressure in some melt of local area was imposed by USV, which would make the phase diagram changed. The Si content of eutectic......
熔池,粉末利用率可达40%[11].德国斯图加特大学发展了激光辅助粉末固化即LAPS-J系统(Laser aided powder solidification/ powder jet),加拿大国家科学院集成制造技术研究所发展了激光合成即LC系统(Laser consolidation),另外,美国,德国和日本等国家的其他研究机构也做了许多研究工作.近年来,华中科技大学,中国科学院,清华大学,西北......
and compressor disks of gas turbine engines, as well as the large front fans of modern jet engines. Hot working, including isothermal processing, is the most applicable forming process for the alloy [3......
application in discs and blades in the high pressure part of compressors and advanced jet engines [1-3]. Titanium alloy components are more difficult to be fabricated than other traditional metallic......
Ti-22Al-27Nb alloy, extends the range of composition and yields possible improvement of high temperature oxidation resistance to meet the requirements for advanced parts of modern jet engines. This work focuses......
by high resolution electron microscopy (HREM). The TEM samples were firstly wire-electrode cut into the 300-500 μm foils, then ground to about 100 μm, followed by twin jet electro-polished......
