The main crack propagated quickly through the eutectic regions, leading to brittle failure. In this work, F. National Center for Biotechnology Information , U. Journal List Materials Basel v. Materials Basel. Published online Jun Author information Article notes Copyright and License information Disclaimer. Received Jun 11; Accepted Jun Abstract Al—Si—Mg based alloys can provide high strength and ductility to satisfy the increasing demands of thin wall castings for automotive applications.
Introduction High pressure die-casting HPDC has been considered as a simple but effective method for the fabrication of aluminum alloy parts [ 1 , 2 ]. Materials and Methods 2.
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Materials In this work, the investigated AlSiMgMn alloys were from practical automotive shock tower components fabricated with Buhler tons cold chamber die-casting machine integrated with high vacuum units. Open in a separate window.
Nanoindentation Test Prior to the indentation tests, the sample was polished by , , , grit SiC abrasive papers and rinsed with distilled water and ethanol Fuyu Fine Chemical Company, Tianjin, China. Figure 1. Results and Discussion 3. Microstructure Figure 2 a—d show the microstructures of AlSiMgMn alloys in the as-cast and T6 conditions, respectively. Figure 2. Nano-Indentation Hardness Test Figure 3 shows the load-displacement curves conducted on different phases of the alloy. Figure 3. Tensile Behavior 3. As-Cast Alloys Figure 4 shows the nominal tensile stress-strain curve of the as-cast alloy.
Figure 4. In-situ nominal tensile stress-strain curve of the as-cast alloy. Figure 5. Figure 6. Figure 7. T6-Treated Alloy Figure 8 presents the nominal tensile stress-strain curve of the T6-treated specimens. Figure 8.
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Figure 9. Figure Conclusions It this study, the effects of T6 heat treatment on the microstructures, the mechanical properties of the alloy phases and the fracture behaviors of AlSiMgMn alloys produced with high vacuum HPDC method were experimentally investigated using nanoindentation and in-situ SEM observation. Author Contributions In this work, F.
Conflicts of Interest The authors declare no conflicts of interest. References 1. Niu X. Vacuum assisted high pressure die casting of aluminium alloys.
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Aluminum Alloy Castings: Properties,Processes and Applications (Paperback)
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Aluminum Alloy Castings
Wan L. Mechanical properties and fatigue behavior of vacuum-assist die cast AlMgSiMn alloy. Effect of solution heat treatment on gas porosity and mechanical properties in a die cast step test part manufactured with a new AlSi10MnMg Fe secondary alloy. The authors have endeavored to address all of the casting process technologies available for aluminum alloys. Engineering information is included for expendable mold, permanent mold, and pressure die casting processes and their variations.
The focus of the process coverage is to review the effects of process selection and process variables on casting properties and performance. Representative examples of aluminum castings applications are provided. This book will be of significant value to materials and design engineers involved in the evaluation, selection and specification of aluminum casting applications and to casting producers as a means of better understanding, quantifying, improving, and promoting the performance characteristics of aluminum castings. Create Alert.
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