Solidification Microstructure Evolution of Undercooled Cu-15 wt.% Fe Alloy Melt

The solidification microstructure evolution of undercooled Cu-15 wt.% Fe alloy melt was studied in this study by the combined method of glass fluxing and overheating. The liquidus and peritectic reaction temperatures of Cu-15 wt.% Fe were experimentally obtained, and the obtained results were consistent with the previous studies. Based on the experimental results and related theories, the solidification process and microstructure evolution of undercooled Cu-15 wt.% Fe alloy melt were illustrated. The conclusions provide the basis to the further study on the liquid-phase separation and application of copper-iron alloy.

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Liquid Phase Separation of Cu-Fe Weld Metal of Manual SHS Welding

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.291-294.945 ◽

2011 ◽

Vol 291-294 ◽

pp. 945-948

Author(s):

Wen Tong Xin ◽

Zhi Zun Li ◽

Bao Feng Li ◽

Yong Sheng Wu

Keyword(s):

Phase Separation ◽

Liquid Phase ◽

Weld Metal ◽

Welded Joint ◽

Surface Hardness ◽

Iron Alloy ◽

Liquid Phase Separation ◽

Structure And Properties ◽

Metal Parts ◽

Welding Line

In order to solve a problem of the low mechanical properties of Manual SHS Welding joint, a new iron-base manual SHS welding material was developed by CuO+Al and Fe2O3+Al being the thermit and adding iron alloy materials. The structure and properties of the welded joint were studied. The results indicated that: Cu-Fe alloy in the molten pool experiences liquid phase separation during rapid solidification, and the weld metal is macroscopically separated into one Fe-rich part and one Cu-rich part. Fe-rich phase is filled in the welding line. The higher Fe supersaturation is in the Cu-Fe weld metal, the more notablely and quickly liquid phase separates. At the same time, tensile strength of the welded joint was close to 520 MPa, and impact toughness was close to 32.1J/cm2, and surface hardness was also close to HB360. It also indicated this technology can meet the need of repair of metal parts in field.

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Effect of the Third Element Ni on the Solidification Microstructure of Undercooled Cu-40 wt.% Pb Monotectic Alloy Melt

Advances in Materials Science and Engineering ◽

10.1155/2019/3086716 ◽

2019 ◽

Vol 2019 ◽

pp. 1-7

Author(s):

Xi Hao ◽

Yugui Li ◽

Ying Hu ◽

Guihong Geng

Keyword(s):

Phase Separation ◽

Liquid Phase ◽

Rapid Solidification ◽

Interfacial Energy ◽

Liquid Phase Separation ◽

Solidification Microstructure ◽

Solidification Structure ◽

Monotectic Alloy ◽

The Third ◽

Coarse Dendrite

In this paper, the evolution of solidification microstructure of Cu-40 wt.% Pb monotectic alloy of the third element Ni pair under deep undercooling conditions was studied. By comparing the phenomena of liquid phase separation during deep undercooling and rapid solidification of Cu-40 wt.% Pb monotectic alloy, the melt of the alloy increases with the undercooling, and the solidification structure appears uneven or even stratified. With the addition of the third element Ni, the liquid phase separation can be effectively inhibited by the change of interfacial energy. The solidified structure undergoes the transformation from coarse dendrite to the first kind of granular and refined dendrite in a wide undercooling range. When the undercooling reaches 143 K, the structure begins to show an inhomogeneous trend.

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Kinetics of droplet growth in liquid—liquid phase separation of polymer—diluent systems: experimental results

Polymer ◽

10.1016/0032-3861(96)81620-x ◽

1995 ◽

Vol 36 (26) ◽

pp. 4951-4960 ◽

Cited By ~ 52

Author(s):

Kenneth S. McGuire ◽

Anand Laxminarayan ◽

Douglas R. Lloyd

Keyword(s):

Phase Separation ◽

Liquid Phase ◽

Liquid Phase Separation ◽

Experimental Results ◽

Droplet Growth ◽

Kinetics Of ◽

Liquid Liquid Phase Separation

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Liquid-Liquid Phase Separation in Quenched Fe71Cu10P10B9 Multi-Component Alloy

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.727.82 ◽

2017 ◽

Vol 727 ◽

pp. 82-87

Author(s):

Chang Rong Qu ◽

Xue Lian Li ◽

Li Wang ◽

Jin Bao Liu ◽

Xing Hua Tong

Keyword(s):

Phase Separation ◽

Liquid Phase ◽

Cooling Rate ◽

Magnetic Measurements ◽

Solidification Process ◽

Liquid Phase Separation ◽

Saturation Induction ◽

The Matrix ◽

Rapidly Solidified ◽

Liquid Liquid Phase Separation

Liquid-liquid phase separation (LLPS) in the rapidly solidified Fe71Cu10P10B9 alloy under different casting conditions is investigated based on the XRD, DSC, and SEM measurements. It is found that during rapid solidification process, Cu-rich globules precipitated in the matrix which mainly consists of α-Fe and Fe3B0.82P0.18 crystals. With increasing cooling rate, LLPS becomes weaker, leading to less precipitation of Cu-rich globules, while the microstructure of the matrix became finer. Magnetic measurements show that the saturation induction and the coercivity of the present samples increase first and then decrease with increasing cooling rate. The corresponding mechanisms related to magnetic performance are also discussed details.

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