Effect of the pouring temperature by novel synchronous rolling-casting for metal on microstructure and properties of ZLl04 alloy

Abstract

A novel synchronous rolling-casting for metal (SRCM) process for producing metal components is developed. In this paper, the microstructure evolution and mechanical property of ZLl04 alloy with different pouring temperatures by SRCM are investigated. In the process, the pouring temperature has great effects on the microstructure and mechanical property primarily through the crystal change in the rolling-casting area. Temperature of liquids and solids of ZL104 alloy is measured by differential scanning calorimetry. Distribution and characteristics of the microstructure of samples are examined by optical microscopy, scanning electron microscopy equipped with energy dispersive spectrometer. The results show that the samples fabricated by SRCM present uniform structure and good performance with the pouring temperature at 620°C when the velocity of the substrate is at 10 cm/s. The tensile strength of ZLl04 alloy reaches 211.89 Mpa, while the average vickers hardness is 81.5 HV.

Microstructure Design of Semi-Solid Slurry for Metal Direct Writing

“…For rheo-printing, semi-solid slurry was obtained from thermal controlling and continuous shearing to the melt, and simple parts can be built [4]. After the effort on solder alloys, rheo-printing of 7075 Al alloy [5] and ZL104 [6] were researched. For thixo-printing, semi-solid slurry was prepared by remelting the after-deformed metallic ingot.…”

Microstructure and Properties of ZL101 Alloy Affected by Substrate Movement Speed of a Novel Semisolid Continuous Micro Fused-Casting for Metal Process

“…The machine of the MFCM process mainly includes a crucible and a stirring apparatus, and a horizontal movable plate [12] . During the process, a liquid alloy is poured into the crucible under the proper temperature, with the high stirring, the semisolid slurry is prepared, the semisolid slurry in the gap is forced to flow along the movement direction, then the cooling caused by the movement of horizontal movable plate, the semisolid slurry is transformed into a strip material [13,14] . In this paper a novel semisolid micro fused-casting for metal process based on MFCM process was developed.…”