Evaluation of the mold-filling ability of alloy melt in squeeze casting

Zhang, Haiying; Xing, Shuming; Zhang, Qinghua; Tan, Jianbo; Liu, Wen

doi:10.1016/s1005-8850(06)60015-7

Cited by 16 publications

(11 citation statements)

References 2 publications

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“…This analysis is in conformity with the explanation elsewhere 13. In addition, the morphologies of the primary carbides between specimens 2 and 3 have no evident difference, according to the previous research results 15…”

Section: Resultssupporting

confidence: 92%

Microstructure and properties of hypereutectic high chromium white cast iron prepared under pressure

Huang

Xing

Gao

et al. 2011

Ironmaking & Steelmaking

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In this paper, a semisolid slurry of hypereutectic high chromium cast iron (HCCI) was prepared in a metal mould by a cooling slope body method under pressure. The results indicated that the size of the primary carbide in the semisolid hypereutectic HCCI specimens becomes much finer, and there is no shrinkage porosity in the semisolid microstructure under a pressure of 150 MPa. The impact toughness of a semisolid specimen without shrinkage porosity is increased by about 121 and 17% compared with those of conventional and semisolid specimens with shrinkage porosity respectively. Furthermore, using SiC particles of 80-100 mesh in size as abrasives, the wear resistance of semisolid specimens without shrinkage porosity is increased by about 78 and 20% compared with those of conventional and semisolid specimens with shrinkage porosity respectively.

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Section: Resultssupporting

confidence: 92%

Microstructure and properties of hypereutectic high chromium white cast iron prepared under pressure

Huang

Xing

Gao

et al. 2011

Ironmaking & Steelmaking

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“…Certainly, the homogenisation of the alloying elements in the interdendritic zone is influenced by the liquid phase. The diffusion coefficients of Cr, Mo, C, and V in the solid and liquid phases of Fe-based alloys were calculated [22,23] and are plotted in Figure 8. Because the diffusion coefficients of the alloying elements in the liquid phase were measured above the liquidus temperature, the diffusion coefficients in the liquid phase plotted here are extrapolated from the diffusion coefficients at high temperature.…”

Section: Effect Of Liquid Phase On the Performance Of The Materialsmentioning

confidence: 99%

In situ research of partial melt in as-cast H13 steel at elevated temperature

Mao

Wang

Sun

et al. 2018

Ironmaking & Steelmaking

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In situ experimental investigations of partial melt phenomenon in as-cast H13 steel at elevated temperatures between 1150°C and 1300°C was carried out using a confocal laser scanning microscope (CLSM) observation. Stripy primary carbides composed of Cr, Mo, V and Ti were observed in the interdendritic zone of as-cast H13 steel. In the interdendritic zone there existed obvious Cr and Mo segregation and slightly C and V segregation. At temperatures above 1150°C, the liquid phase was observed at the primary carbides-matrix boundary, even though this temperature is much lower than the solidus temperature of H13 steel. A higher heat temperature and longer holding time result in the generation of an increased amount of liquid phase. The maximum fraction of the liquid phase in the present investigation was 6%. Two effects are responsible for the premature appearance of the liquid phase, namely the alloying elements segregation in the interdendritic zone and the decomposition of primary carbides. The presence of the liquid phase accelerates alloying elements diffusion in the interdendritic zone, and cavities will be generated because of the shrinkage of the liquid phase during rapid cooling.

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“…15) However, it must offer sufficient heat to avert premature solidification of the metals before pressured. A suitable pouring temperature is dependent on several factors, such as the liquidus temperature, freezing range of the metal and die complexity.…”

Section: Fixed Parameters Variable Parametermentioning

confidence: 99%

Effects of Process Parameters on the Macrostructure of a Squeeze-Cast Mg-2.5 mass%Nd Alloy

Yang

Peng

et al. 2009

Mater. Trans.

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The effects of applied pressure, pouring and die temperatures on the macrostructure of a squeeze-cast Mg-2.5 mass%Nd alloy were investigated. The grain size of the Mg-2.5 mass%Nd alloy increased with increasing applied pressure from 60 to 180 MPa when the pouring and die temperatures were 725 C and 330 C. This was attributed to the melting temperature at the time when pressure was applied under the pouring temperature of 725 C, higher than the liquid temperature. Whilst, the pouring and die temperatures are 700 C and 330 C, the grain size of the alloy decreased with increasing applied pressure from 0 to 180 MPa. Lower die and pouring temperatures were favorable to refine grains, but the effects of the die temperature on the distribution and structure of grains were much smaller than those of the pouring temperature.

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Evaluation of the mold-filling ability of alloy melt in squeeze casting

Cited by 16 publications

References 2 publications

Microstructure and properties of hypereutectic high chromium white cast iron prepared under pressure

Microstructure and properties of hypereutectic high chromium white cast iron prepared under pressure

In situ research of partial melt in as-cast H13 steel at elevated temperature

Effects of Process Parameters on the Macrostructure of a Squeeze-Cast Mg-2.5 mass%Nd Alloy

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