Microstructure and mechanical properties of rapidly solidified Al-Si-Fe-X base alloys

Mechanical properties and structure of rapidly solidified bulk Fe89−xHf4Ta1Cu1Gd1SixB4 (x=0–15) and Fe74Hf4Ta1Cu1Gd1LaySi15−yB4 (y=7) alloys

“…Ibrahim et al [16] described Al-Si-Mg alloys with hardening Mg 2 Si phase, used in aerospace industry. Park et al [17] obtained rapidly solidified Al-Si-Fe alloys with improved hardness, tensile strength and ductility resulting from a fine dispersion of DO 22 -(Al,Si) 3 Ti phase. Sheng et al [18] found, that in copper mold injection-cast NiAl-Cr(Nb)/Dy alloy, NiAl/Cr 2 Nb lamellar eutectic microstructure is formed instead of coarse Cr 2 Nb grains identified in conventionally cast samples.…”

FIB cross‐sectioning of a single rapidly solidified hypereutectic Al‐Si powder particle for HRTEM

“…At specific compositions and under rapid solidification environments, these ternary phases form ultra-fine intermetallic particles and structures that provide a variety of favorable mechanical properties most notably high temperature strength, creep resistance, oxidation resistance, and room temperature strength (Fig. 7) (Estrada and Duszczyk, 1990;Gloriant and Greer, 1998;Jain and Gupta, 2003;Park et al, 1996;Salvador et al, 2003;Satyanarayana et al, 2001;Srinivasan and Chattopadhyay, 2004;Srivastava et al, 2002;Srivatsan et al, 1995;Wang et al, 2004). During rapid solidification, the ''crystallization and precipitation of intermetallic compounds is inhibited'' (Estrada and Duszczyk, 1990).…”

“…The particular composition of the Al-Si powder chosen for investigation is given in Table 1. The customization of the powder's composition was also pertinent to the particular desire for Ni-Al and Al-Si-X (where X ¼ Cu, Mg) intermetallic compounds for possible improved mechanical properties (Estrada and Duszczyk, 1990;Gloriant and Greer, 1998;Jain and Gupta, 2003;Park et al, 1996;Salvador et al, 2003;Satyanarayana et al, 2001;Srinivasan and Chattopadhyay, 2004;Srivastava et al, 2002;Srivatsan et al, 1995;Wang et al, 2004).…”

Influence of Titanium (Ti) Addition on Wear Properties of Aluminium-Silicon -Copper (Al-Si-Cu) Eutectic Alloy

“…Various studies have been reported the influence of various alloying elements on wear resistance of Al-Si alloys [6][7][8][9][10]. The addition of 2 wt.% Ti to the rapidly solidified Al-20wt.%Si, 5wt.% Fe alloy was reported to decrease its wear rate and improving its mechanical properties, while V addition was less effective than Ti [6].…”

“…The addition of 2 wt.% Ti to the rapidly solidified Al-20wt.%Si, 5wt.% Fe alloy was reported to decrease its wear rate and improving its mechanical properties, while V addition was less effective than Ti [6]. The addition of 1.5 wt.% Cu to rapidly solidified and processed Al-Si base alloys enhanced the wear behaviour at higher loads due to the precipitation of a hard-phase Al2Cu, which inhibits further wear in these alloys [7].…”