Alloys of the Al–Fe–Mn–Si System

Low‐cycle fatigue behavior of a newly developed cast aluminum alloy for automotive applications

“…This can be better seen in a magnified micrograph shown in Figure B. Such a unique microstructure is referred to as in‐situ composite, with similar phases identified by XRD and reported in the literature . Other examples of in‐situ formed aluminum composites include Al/TiC composites created by reactions between an Al‐Ti alloy and graphite, and Al/TiB 2 composite generated from the mixing of Al‐Ti and Al‐B liquids as well as from reactions between Al and Ti and B‐bearing salts .…”

“…A similar method has been employed by several researchers to modify the alloy morphology . Fe‐rich intermetallic compounds are observed in the microstructure to be distributed mainly along the primary α‐Al and Mg 2 Si phases; however, some Fe‐rich intermetallics could be positioned inside them as reported in the literature . The presence of α‐Al + Mg 2 Si eutectic structure and Fe‐rich intermetallics suggests that two eutectic solidifications occurred during the casting process .…”

“…22 The presence of α-Al + Mg 2 Si eutectic structure and Fe-rich intermetallics suggests that two eutectic solidifications occurred during the casting process. 22,31 This indicates that even a small amount of Fe addition results in the modification of the alloy microstructure. EDS quantitative analysis via a line scan revealed the presence of elements Fe, Mn, and Si across the white phase in Figure 4B, with a composition close to that of Al 8 (Fe,Mn) 2 Si.…”

“…Such a unique microstructure is referred to as in-situ composite, with similar phases identified by XRD and reported in the literature. 22,23 Other examples of in-situ formed aluminum composites include Al/TiC composites created by reactions between an Al-Ti alloy and graphite, and Al/TiB 2 composite generated from the mixing of Al-Ti and Al-B liquids as well as from reactions between Al and Ti and B-bearing salts. 24 XRD was conducted to verify the phases present in the present die-cast Al alloy, and the obtained XRD pattern is shown in Figure 4A.…”

Environmentally friendly approach for sustainable recycling of spent SCR catalysts and Al alloy scrap to prepare TiAl3 and low-Fe Al alloys

“…The precipitation sequence of the Al–Fe–Mn phases and Al alloy can be explained by the Al–Fe–Mn ternary phase diagram. According to the Al–Fe–Mn ternary phase diagram, 43 the temperature range in which Al 3 (Fe, Mn) and Al(Fe, Mn) 6 can precipitate simultaneously is 927–1000 K; the precipitation temperature of Al in the Al–Fe–Mn ternary phase diagram is 927 K. These results are consistent with the above results that Al–Fe–Mn phases precipitate before Al.…”