The Use of Semi-Solid Rheocasting (SSR) for Aluminum Automotive Castings

Yurko, James A.; Martinez, R. A.; Flemings, M. C.

doi:10.4271/2003-01-0433

Cited by 38 publications

(44 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The latter uses slurry on demand to tackle the cost issue and has become the choice of aluminium foundries that rely on semisolid casting for cost efficient high integrity structural parts. [1][2][3] Rheocasting requires a slurry with a largely globular solid fraction. Mechanical stirring is the first process employed to produce such slurries 4 and its favourable impact on semisolid features has been investigated for over 30 years.…”

Section: Introductionmentioning

confidence: 99%

Internal cooling process to prepare aluminium rheocasting feedstock

Birol

2010

International Journal of Cast Metals Research

View full text Add to dashboard Cite

Immersion cooling and stirring are two elements of the internal cooling process recently proposed to produce aluminium rheocasting feedstock. They were employed in various combinations to identify the impact of each on the evolution of globular structures. AlSiMg melt sample water quenched above the liquidus point and after cooling into the semisolid temperature range produces predominantly dendritic dendritic features, typical of conventionally cast structures. Improvement in slurry features is noted when cooling below the liquidus temperature involves either stirring or immersion cooling. Internal cooling process which employs both immersion cooling and stirring produces smaller globules than those possible with stirring alone. Globular structures are obtained earlier and are refined further when internal cooling is extended to achieve higher solid fractions before quenching.

show abstract

Section: Introductionmentioning

confidence: 99%

Internal cooling process to prepare aluminium rheocasting feedstock

Birol

2010

International Journal of Cast Metals Research

View full text Add to dashboard Cite

show abstract

“…Aluminum-lithium alloys such as 2090, 2091 and 8090 provide higher specific modulus than those of the previous grades of aluminum alloys (e.g. 7075, 2024) and therefore replacements of some parts of aircrafts with these new alloys have been started at the same time [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Formation mechanisms of precipitates in an Al–Cu–Li–Zr alloy and their effects on strength and electrical resistance of the alloy

Ahmadi

Arabi

Shokuhfar

2009

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…Thus, increasing attention has been paid to the rheoforming in which a liquid alloy is transformed into semi-solid slurry followed directly by component shaping. Most of rheoforming processes combine high pressure die casting (HPDC) to directly deform the semi-solid slurry [7][8][9], where the slurry do not have as high a solid fraction as thixoforming, but only has a solid fraction of 10-30%. Such semi-solid slurry has a significantly low viscosity, which would result in splashing or turbulence during injecting of the slurry into the die.…”

Section: Introductionmentioning

confidence: 99%