Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Hengzhi Fu"'
Publikováno v:
International Communications in Heat and Mass Transfer. 90:56-66
Electromagnetic cold crucible (EMCC) is widely applied to melt and solidify refractory and reactive materials, the electromagnetically driven flow in the melt leads to intensive transfer behaviors of solute and strongly affects crystal growth. In thi
Autor:
Qiang Wang, Hengzhi Fu, Shiqiu Liu, Zhanxing Chen, Ruirun Chen, Hongsheng Ding, Jingjie Guo, Hailong Zhang
Publikováno v:
Crystal Growth & Design. 17:1716-1728
A rapid cellular microstructure of Ti-48Al-2Cr-2Nb (in atom %) intermetallic was grown without peritectic reaction by the method of melt-quenching in Ga–In liquid. After characterization of the microstructures and phase constituents, it is observed
Publikováno v:
Intermetallics. 73:1-4
In this paper, we report a β seeding technique for the lamellar orientation controlling in TiAl alloy, which is a novelty and effective method for aligning the lamellar orientation of Ti–47Al–0.5W–0.5Si with primary α phase. The shorter compo
Autor:
Jingjie Guo, Tong Liu, Liangshun Luo, Hengzhi Fu, Liang Wang, Yanqing Su, Ruirun Chen, Xinzhong Li
Publikováno v:
Journal of Materials Research. 31:618-626
Ti-47Al-1.0W-0.5Si (at.%) alloy was directionally solidified in the range of growth rate (V) (V = 3–100 μm/s) at a constant temperature gradient (G = 18 K/mm). It was found that α phase was the primary phase of the alloy. Both primary dendritic a
Publikováno v:
Journal of Alloys and Compounds. 657:341-347
A combined technique denoted as seeding-grain selection (SGS) was designed for fabricating single crystal turbine blades. The microstructural evaluation during SGS process was metallographically analyzed in both starter section and spiral section of
Publikováno v:
Journal of Electronic Materials. 45:2895-2903
Single-phase Mg2Sn crystal has been successfully directionally solidified from the melt with a high temperature gradient of 185 K cm−1. The solidified distance for the growth of single-phase Mg2Sn crystal was predicted theoretically and agreed well
Publikováno v:
Journal of Materials Research. 30:3474-3483
By combining the techniques of directional solidification and coating Y2O3, a Cr–20Nb–40Ti alloy was manufactured successfully with various growth rates. The revolution of microstructures and corresponding mechanical properties was discussed to d
Publikováno v:
Journal of Materials Science & Technology. 31:280-284
In this study Ni–Ni3Si eutectic in situ composites are obtained by Bridgman directional solidification technique when the solidification rate varies from 6.0 μm/s to 40.0 μm/s. At the low solidification rates the lamellar spacing is decreased wit
Publikováno v:
Materials Science and Engineering: A. 621:94-99
Large-scale Ti–47Al sample without contamination is shaped by electromagnetic confinement and directional solidification. Controlled by a Ti–43Al–3Si seed, numerous columnar grains grow directionally in transition region and the lamellar micros
Publikováno v:
Journal of Alloys and Compounds. 618:49-55
Sn-Ni peritectic alloys were directionally solidified using a Bridgman type directional solidification furnace. Microhardness (Hv) of both primary Ni3Sn2 phase and peritectic Ni3Sn4 phase and microstructure length scales including primary dendrite ar