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Solidification structure of eutectic Al-Si alloy under a high magnetic field-aid-electromagnetic vibration Yunbo ZHONG1,Kang DENG1,Weili REN1,Zhongming REN1,Jianbo YU1 (1.Department of Materials...) and an alternative electricity current to the metal.Its effects on the solidification structure of eutectic A1-Si alloy have been investigated experimentally. It is found that the eutectic structure has been......
by using SEM. Fig.3(a) and Fig.3(b) show the lamellar as cast eutectic structure. The eutectic is believed as α-Al and MgZn2[12], which will be analyzed later. Some coarse particles (arrowed in Fig.3... Evolution of eutectic structures in Al-Zn-Mg-Cu allaoys during heat treatment FAN Xi-gang(樊喜刚)1, JIANG Da-ming(蒋大鸣)1, MENG Qing-chang(孟庆昌)1, ZHANG Bao-you(张宝友)1, WANG Tao(王 涛)2 1. Analysis......
℃, indicating the melting of ternary eutectic structure, which well agrees with the eutectic reaction point (1 715 ℃) of the phase diagram of the Al2O3-Y2O3-ZrO2 system[21] and verifies... between the solidified zone and non-processed zone in the Al2O3/YAG/ZrO2 eutectic ceramic. It can be seen that the microstructure in the solidified zone exhibits a typical irregular lamellar structure......
-tree crystal into the equiaxed crystal, and less primary phase and more eutectic structure are observed. Moreover, in eutectic alloy, the spacing of eutectic phase decreases markedly.... In addition, the eutectic structure is also refined a lot, and the spacing of eutectic phase decreases about from 0.75-1.25 μm to 0.3-0.5 μm, and the microscopic pattern changes from the continuous......
) alloy. The dark phase is Nb3Si primary phase, while the light gray one is Nb-Nb3Si eutectic structure. This implies that there is no Nb5Si3 phase in the as-casting sample. This result can be understood... or at the large supercooling. The Nb+Nb3Si eutectic region is not necessary to be experimented in such case. The results show that all of drop-tube samples contained both of the coarse structure regions......
intergrowth zone, so hypereutectic alloy can also achieve eutectic structure. In Fig.3(e) the hypereutectic structure is replaced by the eutectic structure due to the primary phase is suppressed. It can... Phase selection in highly undercooled Fe-B eutectic alloy melts YANG Chang-lin(杨长林), YANG Gen-cang(杨根仓), LU Yi-ping(卢一平), CHEN Yu-zeng(陈豫增), ZHOU Yao-he(周尧和) State Key Laboratory......
. By X-ray powder diffraction, the structure change of NdCr∶GSGG crystal of Φ 27 mm×120 mm with eutectic along its grown direction was studied. By the least square method and extrapolation function f...Study on Lattice Parameter Variance and Eutectic Reaction during Crystal Growth of Nd,Cr∶GSGG by Czochralksi Method Shao Shufang1,Sun Dunlu1,Gu Changjiang1,Yin Shaotang1,Zhang Qingli1 (1.Crystal......
not dissolve completely. Key words: 7B04 aluminum alloy; homogenization; eutectic  ... equipped with DX-4 Energy Spectroscope, and DSC131 Differential Scanning Calorimeter. 3 Results and discussion 3.1 Metallographic structure of as-cast and homogenized alloy The as-cast......
of in situ NiAl-Cr(Zr) eutectic composite[J]. Composite Structure, 2003, 62(3-4): 323-327. [14] ALIBTER A, SALAZAR M, BEDOLLA E, DREW R A L, PEREZ R. Improvement of the mechanical properties... Microstructure and properties of β-NiAl and its eutectic alloy with Cr and Mo additions ZHANG Zhi-gang(张志刚), LIU Xian-bin(刘先斌), GONG Sheng-kai(宫声凯), XU Hui-bin(徐惠彬) School of Materials Science......
that there are lamellar eutectic structure (α(Al)+Mg(Zn,Al,Cu)2) and Al7Cu2Fe particles in the solidified structure. The Al7Cu2Fe particles are embedded in the eutectic structure. The content of eutectic.... The Al2CuMg constituents form in the primary Mg(Zn,Al,Cu)2 phase, and grow along the eutectic microstructure. Key words: Al-Zn-Mg-Cu alloy; eutectic structure; intermetallic particles; phase......