Effect of HPDC Parameters on the Performance of Creep Resistant Alloys MRI153M and MRI230D

Gertsberg, G.; Nagar, N.; Lautzker, M.; Bronfín, B.; Moscovitch, N.; Schumann, S.

doi:10.4271/2005-01-0334

Cited by 5 publications

(5 citation statements)

References 8 publications

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“…Then the metal is forced to enter into a closed metallic die under high metal velocities (from about 30 to 100 m/s for magnesium alloys) [3] and high dimensional accuracy complex components are produced, presenting a low surface roughness by the subsequent extremely short filling time (from 10 to 150 ms approx.) [4,5]. During solidification the metal contracts and can produce shrinkage porosity in the casting.…”

Section: Introductionmentioning

confidence: 99%

Aluminium Foam and Magnesium Compound Casting Produced by High-Pressure Die Casting

Vicario

Crespo

Plaza

et al. 2016

Metals

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Nowadays, fuel consumption and carbon dioxide emissions are two of the main focal points in vehicle design, promoting the reduction in the weight of vehicles by using lighter materials. The aim of the work is to evaluate the influence of different aluminium foams and injection parameters in order to obtain compound castings with a compromise between the obtained properties and weight by high-pressure die cast (HPDC) using aluminium foams as cores into a magnesium cast part. To evaluate the influence of the different aluminium foams and injection parameters on the final casting products quality, the type and density of the aluminium foam, metal temperature, plunger speed, and multiplication pressure have been varied within a range of suitable values. The obtained compound HPDC castings have been studied by performing visual and RX inspections, obtaining sound composite castings with aluminium foam cores. The presence of an external continuous layer on the foam surface and the correct placement of the foam to support injection conditions permit obtaining good quality parts. A HPDC processed magnesium-aluminium foam composite has been developed for a bicycle application obtaining a suitable combination of mechanical properties and, especially, a reduced weight in the demonstration part.

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Section: Introductionmentioning

confidence: 99%

Aluminium Foam and Magnesium Compound Casting Produced by High-Pressure Die Casting

Vicario

Crespo

Plaza

et al. 2016

Metals

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“…The recycled ingots under optimal bubstir conditions, as was described, were re-melted and tensile, impact, and creep samples were cast using a IDRA OL-320 cold chamber die casting machine with a 345 ton clamping force. During casting no adjustments of the process parameters were required compared to casting parameters set for primary MRI 230D alloy [10,11].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Recycling Technology Guidelines of MRI Die Casting Alloys

Gertsberg¹,

Yosef²,

Bronfín³

et al. 2008

SAE Technical Paper Series

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Creep-resistant HPDC alloys MRI153M and MRI230D are designated to replace HPDC aluminum alloys in the production of different automotive and non-automotive components. Due to the specific chemical compositions of the MRI alloys; they contain alkaline elements (Ca, Sr) with high affinity to Cl ions, fluxless technology must be used for recycling The present paper describes an technology which was developed for recycling MRI alloys. This technology combines simultaneous bubbling and stirring during batch processing. This operation is performed in order to improve metal cleanliness and reduce the process duration, thereby increasing its efficiency. The mechanical properties of recycled alloys were tested and compared with those of primary alloys. The influence of clean scrap dilution with primary material was also explored. The results obtained illustrate a moderate influence of scrap addition on mechanical properties. This effect should be considered for a wide range of die cast components production. The paper also presents guidelines for MRI alloys scrap handling and recycling.

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“…There has been some effort to correlate Mg alloy mechanical properties directly to variations in HPDC processing parameters [26,[35][36][37]. Sannes et al [26], for example, demonstrated that changing the gating configuration of a tensile bar die produced as-cast tensile specimens that had statistically significant differences in ductility.…”

Section: Introductionmentioning

confidence: 99%

Using quality mapping to predict spatial variation in local properties and component performance in Mg alloy thin-walled high-pressure die castings: an ICME approach and case study

Forsmark

Zindel

Godlewski

et al. 2015

Integr Mater Manuf Innov

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This paper explores the use of quality mapping for the prediction of the spatial variation in local properties in thin-walled high-pressure die castings (HPDC) of the magnesium alloy AM60. The work investigates the role of casting parameters on local ductility and yield strength and presents a model for predicting local ductility and yield strength in a cast component. A design of experiment (DOE) was created to examine the role of various casting parameters on local properties such as ductility and yield strength. Over 1,200 tensile samples were excised from cast parts and tested. Casting simulations were also conducted for each experimental condition. Local properties were predicted, and the local property (quality map) model was compared with a prototype production component. The results of this model were used as input to a performance simulation software code to simulate the component-level behavior under two different loading conditions. In this study, the authors bypassed the traditional Integrated Computational Materials Engineering (ICME; process-microstructure-properties) approach in favor of a semi-empirical quality mapping approach to provide estimates of manufacturing sensitive local properties for use in process and component design.

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Effect of HPDC Parameters on the Performance of Creep Resistant Alloys MRI153M and MRI230D

Cited by 5 publications

References 8 publications

Aluminium Foam and Magnesium Compound Casting Produced by High-Pressure Die Casting

Aluminium Foam and Magnesium Compound Casting Produced by High-Pressure Die Casting

Recycling Technology Guidelines of MRI Die Casting Alloys

Using quality mapping to predict spatial variation in local properties and component performance in Mg alloy thin-walled high-pressure die castings: an ICME approach and case study

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