| Rapid directionally solidified microstructure characteristic and fracture behaviour of laser melting deposited Nb–Si–Ti alloy |
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| 作者姓名： | Wei Liu Xinyu Ren Neng Li Chao Gao Huaping Xiong |
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| 作者单位： | 3D Printing Research and Engineering Technology Center, Beijing Institute of Aeronautical Materials |
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| 基金项目： | support from the National Natural Sciences Foundation of P. R. China (Grant No.51605456 and No.51775525)； |
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| 摘 要： | Aiming at achieving fine and directionally-solidified microstructure of Nb-Si based alloy,Nb,Si and Ti powder particles were utilized as the raw materials,and laser melting deposition(LMD) experiments were conducted with1500 W and 2000 W laser power,respectively.The microstructure characteristic,micro-hardness,and indentation fracture toughness were examined by scanning electron microscope(SEM),X-ray energy dispersive spectrometer(XEDS) and X-ray diffraction(XRD).The results showed that the two ...
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| 收稿时间： | 2020-03-29 |
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