– alloy modification needed for prototyping Introduction Magnesium alloys are light metallic structural materials, which are very attractive in such applications as automobile, aerospace and electric industries. magnesium alloys for automotive applications prototyping of diecast parts • az91d, am50, am60 – plaster-cast az91e – properties are 70% of diecast parts • ae42, as41, as21 – difficult to prototype – properties not representative. Also, cardiovascular stents and orthopaedic devices are potential applications of some magnesium alloys due to magnesium’s biocompatibility and bioabsorbability . molten alloy at pouring temperature for at least one hour with no penalty to the e ciency of the grain reﬁnement process . Applications include safety related parts, such as seat frames, cross car beams, body structures, and closures. The microstructure and mechanical property of the AZ91/HA composite were studied. AZ31: 3.0 % Al 1.0 % Zn 0.2 % Mn: Wrought magnesium products: Good extrusion alloy. In addition to the above commercial Mg alloy systems, new Mg alloys have also been developed for use in orthopedic applications, including Mg-Ca, Mg-Sr, Mg-Zn, and Mg-RE alloy systems. The results show that the molten AZ91 alloy completely infiltrated the preform without destroying the porous structure of the HA preform. The magnesium alloy that has received most attention is AZ91 ... AZ91 magnesium alloy, reported a … Keywords: AZ91 magnesium alloy, gravity casting, ATD, microstructure 1. Alloy AZ91 (Mg-9Al-0.8Zn-0.2Mn) is the most favored magnesium alloy, being used in approximately 90% of all magnesium cast products (Guangyina et al., 2000). The use of magnesium alloy casting in the automobile industry expands at an impressive rate in this decade, which can manage with the energy and environment problems. Sources  Trang, T. T. T. et al. (2018) Designing a magnesium alloy with high strength and high formability, Nature Communications 9 , … This demand has resulted in an increased research and development activity However, the process has a limited application due to the harmful impact on the environment and negative e ect of iron on the corrosion resistance of magnesium alloys . Die Cast Magnesium Alloys vs Aluminum Magnesium AZ91D AM60B AE44, MRI153, MRI230D Excellent energy-absorption characteristics, ductility and strength. These alloys have improved performance characteristics for performance Most commercial magnesium alloys are based on Mg-Al system comprising the AZ and AM High pressure die casting alloy: Greater toughness and ductility than AZ91, slightly lower strength. Often preferred for automotive structural applications. Magnesium Casting Alloys Magnesium Casting Alloy Families – Commonly used alloy systems employed today A -Zl n -Mn Zn -RE -Zr Ag - RE - Zr Y -RE -Zr EZ33 ZE41 ZE63 QE22 EQ21 WE43 WE54 Elektron 21 (EV31) Nd -Gd -Zn -Zr AZ81 AZ91 AZ92 Ag - RE - Zr early 1960s Æ Y - RE - Zr late 1980s Æ Elektron21 late 1990s Æ The success of the International Conference on „Magnesium Alloys and their Applications“ in April 1998 in Wolfsburg demonstrated the renewed interest in innovative applications of magnesium materials. AZ91 magnesium alloy has been selected as matrix material  among which AZ91E is observed to have excellent corrosion resistance among the all AZ91 series alloys [1, 2]. AZ91/HA composite was prepared by AZ91 magnesium alloy and porous HA using squeeze casting method. Increased applications of magnesium alloys for elevated temperature service require the development of low-cost alloys with good creep resistance and sufficiently high strength.
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