Thermal and metallographic characteristics of the Al–20% Si high-pressure die-casting alloy for monolithic cylinder blocks

Solidification Analysis of an Al-19 Pct Si Alloy Using In-Situ Neutron Diffraction

“…Important examples include linerless engine blocks for passenger vehicles, motorcycle cylinder blocks cast using high pressure die casting (HPDC), and pistons using low pressure permanent mold (LPPM) casting processes [1][2][3][4][5][6]. Figure 1 shows a cross-section of a 250cm 3 motorcycle engine with a hypereutectic Al-20%Si cylinder block cast using the vacuum HPDC process.…”

Solidification Analysis of Al‐Si Alloys Modified with Addition of Cu Using In‐Situ Neutron Diffraction

“…For example, cast components that experience service conditions of high temperature and load, such as engine blocks, are now routinely produced using the Al-Si alloys [1][2][3][4][5][6]. It is understood that as-cast microstructure of the material is much dependent on melt processing in casting operations.…”

“…In published reports [3][4][5]10] thermal analysis was applied for evaluation of solidification kinetics during the non-equilibrium and nearequilibrium conditions. Various attempts have also been undertaken to characterize the solidification process using methods other than thermal analysis.…”

The Effect of Water Mist Cooling of Casting Die on the Solidification, Microstructure and Properties of AlSi20 Alloy

“…This microstructure is novel, as in the literature, no similar cases were found. The most common shape of primary Si is a brick and this appears in the majority of papers as pointed out by H Yamagata et al (2008).…”

“…Władysiak (2013) investigated the effect of water mist cooling on the properties of hypoeutectic AlSi7Mg alloy and also indicated optimal process parameters. Yamagata et al (2008) reviewed the positive influence of intensive die cooling, resulting in the rapid solidification of mechanical properties and the quality of castings. Heat transfer efficiency causes a reduction in the primary Si particle size and a decrease in secondary dendrite arm spacing as reported by Shabestari and Malekan (2005).…”