Influence of various trace metallic additions and reinforcements on A319 and A356 alloys—a review

The Influence of Alloying Elements on the Microstructure and Properties of Al-Si-Based Casting Alloys: A Review

“…Features most extensively reviewed in the literature are the effects of iron (e.g., [6]) and strontium (e.g., [7]) on the quality and microstructure of Al-Sibased alloys. More recent reviews provide relatively summarized discussions about the effects of alloying elements due to the assessment of additional aspects, such as particle reinforcements [8] and processing conditions [9]. Campbell developed a brief review covering several points ranging from nucleation and growth of eutectics and oxides to texture development and hydrogen embrittlement in Al alloys [10].…”

Investigation on the Wire Electric Discharge Machining Performance of artificially aged Al6061/B4C composites by Response Surface Method

“…Matrix deforms plastically to meet reinforcement particles' smaller volume expansion, resulting in greater dislocation density. Increased dislocation density result in greater resistance to plastic deformation and an increase in composite hardness [1][2][3] . As-cast Al6061 alloy had a VHN of 60, but as-cast Al6061-B 4 C (1, 2, and 3 wt.%) composites had 70, 75, 84 VHN respectively, whereas artificially aged Al6061 alloy and its composite samples show hardness of 75, 128, 136 and 144 VHN respectively.…”

“…Aluminum based composites are now replacing steel and aluminum alloy components (e.g., hydraulic cylinder, drive shafts etc.) in the field of automotive sector for weight reduction and wear resistance in essential components [2][3][4][5][6][7] . The comprehensive literature shows that boron carbide (B 4 C) is an alternative for composites reinforced with silicon carbide (SiC) due to better interfacial bonding with matrix alloy.…”

“…SiC reinforced composites have lower strengthening effects than B 4 C reinforced composites. Age hardening is the prominent heat treatment process used to increase specific strength of several aluminium alloys [1][2][3] . The primary purpose of ageing treatment of these alloys (Al-Mg-Si) is to obtain a systematically growing enormous number of uniformly distributed fine intermediate precipitates (Mg 2 Si) in the matrix.…”