Al-Si alloys containing iron, magnesium and manganese, three iron phases are predominant: [alpha]-A115(FeMn)3Si2, [beta]-A15FeSi and [pi]-A18FeMg3Si6.
Guo, "Microstructure and room temperature mechanical properties of NiAl-Cr(Mo)-(Hf, Dy) hypoeutectic
alloy prepared by injection casting," Transactions of Nonferrous Metals Society of China, vol.
Yang, "Growth mechanism of primary silicon in cast hypoeutectic
Al-Si alloys," Transactions of Nonferrous Metals Society of China, vol.
During the solidification of hypoeutectic
gray cast iron, two main events can be differentiated, the precipitation of the primary phase and the eutectic phase.
The heating temperature of HAZ is between hypoeutectic
and eutectoid temperature, and the microstructure only has solid-state phase transition during the repairing process.
A356 aluminum silicon alloy was used as the experimental alloy, whose chemical compositions are shown in Table 1.
structure of this CoCr29W9C1.8 material solidified from a melt of Co-Cr-W matrix in a dendritic structure (Fig.
Melting layer has a very high hardness, the hardness can be above Hv1000, with the laser scanning speed increased and increased with metamorphosis hypoeutectic
white structure's refinement .
This alloy relates to hypoeutectic
ones and consists of lamellae of [alpha]-phase, which occurred inside primary [beta]-grain.