Die Cast Magnesium Alloys for High Temperature Applications

Bakke, Per; Westengen, Håkon; Pettersen, Ketil; Albright, Darryl

doi:10.4271/2003-01-0189

Cited by 10 publications

(3 citation statements)

References 26 publications

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“…al. [20]. Examining the creep rates in Table 2 shows that AE42 has the lowest creep rate followed by Mg-3wt%Sn-2wt%Ca and Mg-5wt%Sn-1wt%RE (a) ) and two phases that appear to be slightly different both containing Mg, Ca and Sn (one appearing to be slightly Sn-rich and the other Ca-rich), no Mg 2 Sn was found by EDS or XRD analysis in this alloy.…”

Section: Resultsmentioning

confidence: 79%

Investigations in the Magnesium-Tin System

Bowles

Dieringa²,

Blawert

et al. 2005

MSF

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Currently most magnesium alloys are based on the Mg-Al system and this system is reasonably well developed. Nevertheless, the alloy system has some disadvantages -while having excellent castability and adequate room temperature mechanical properties Mg-Al alloys show poor creep resistance. This has led to investigations in other magnesium based systems; magnesium forms alloys with a large number of elements and, indeed a number of magnesium systems show good creep resistance. In this work, the Mg-Sn system has been chosen for study. The Mg-Sn system shows some positive characteristics in terms of potential creep resistance; a high temperature stable phase is formed with magnesium -Mg 2 Sn (melting point: 770°C) and this phase forms as a line compound (71wt% Sn), which is typically distributed around the grain boundaries. The effect of the addition of a range of ternary elements on the microstructure and creep properties has been studied.

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Section: Resultsmentioning

confidence: 79%

Investigations in the Magnesium-Tin System

Bowles

Dieringa²,

Blawert

et al. 2005

MSF

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“…In recent studies a fresh look at the AE alloy family is presented. [22] Different combinations of Al and RE are investigated namely Mg-3 %-5 %RE (AE35), and Mg-8 Al-2RE (AE82). Future studies on AE42 should address the thermal stability at 175 C and conduct a thorough search in the ternary Mg±Al± RE alloy system to determine compositions that offer both creep resistance, thermal stability and good castability.…”

Section: Reviewsmentioning

confidence: 99%

Creep Resistant Magnesium Alloys for Powertrain Applications

Pekguleryuz¹,

Kaya²

2003

Adv Eng Mater

392

187

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Creep resistant magnesium alloys are candidate materials for automotive powertrain applications. Since the 90's, a number of new creep‐resistant magnesium alloy systems have been investigated and developed. These are for the most part based on rare‐earth, alkaline earth, and silicon additions. This paper gives an overview of creep resistance in magnesium and a review of creep resistant magnesium alloys for power‐train applications.

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“…Aluminum causes an increase in tensile strength and hardness of the alloy, but only to a temperature of 120°C [6]. In addition, it improves castability, which is due to lowering of the surface tension and increasing the range between solidus and liquidus temperatures and minimizes casting shrinkage [7].…”

Section: Mg-9al-1zn Alloy -Operating Temperature <120°cmentioning

confidence: 99%

Microstructure and Properties of Sand Casting Magnesium Alloys for Elevated Temperature Applications

Kiełbus

2011

SSP

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It is required of sand casting magnesium used for aircraft industry to be, among others, increasingly creep-resisting. This paper describes microstructure and properties of chosen magnesium sand casting alloys, intended for usage at ambient and elevated temperature. The first part describes the most popular magnesium alloy Mg-9Al-1Zn (AZ91), which, due to the presence of Mg17Al12 phase in its structure, can be used only up to the temperature of ~120°C. The second part describes Mg-5Y-4RE-Zr (WE54) alloy, which can be used at the temperature of up to ~250°C. Unfortunately, its usage is very limited due to high price. The third part characterizes Mg-3Nd-1Gd-Zr (EV31A) alloy, which has properties similar to Mg-5Y-4RE-Zr alloy, but lower price. This paper also discusses the potential applications of these alloys.

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Die Cast Magnesium Alloys for High Temperature Applications

Cited by 10 publications

References 26 publications

Investigations in the Magnesium-Tin System

Investigations in the Magnesium-Tin System

Creep Resistant Magnesium Alloys for Powertrain Applications

Microstructure and Properties of Sand Casting Magnesium Alloys for Elevated Temperature Applications

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