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Browsing by Author "Curle, UA"

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Characterization of surface liquid segregation in SSM-HPDC aluminium alloys 7075, 2024, 6082 and A201

Author: Moller, H ; Curle, UA ; Masuku, EP Date: Sep 2010 Semi-solid metal (SSM) processing is a unique manufacturing method to produce near-net shape products for various industrial applications. The nature of the SSM slurry (with solid spherical grains suspended in a liquid), makes it susceptible ... Read more
Effect of solution heat treatment time on a rheocast Al-Zn-Mg-Cu alloy

Author: Mazibuko, NE ; Curle, UA Date: Jun 2011 During rheo-high pressure die casting (R-HPDC) of Al-Zn-Mg-Cu alloys a coarse eutectic phase is formed. This eutectic phase is difficult to take into solution because of its size and it would require longer solution heat treatment times. The ... Read more
Industrial heat treatment of R-HPDC A356 automotive brake callipers

Author: Chauke, L ; Moller, H ; Curle, UA ; Govender, S Date: Oct 2012 Heat treatment of rheo-high pressure die cast (R-HPDC) A356 brake callipers has produced good mechanical properties on the laboratory scale. An industrial heat treatment is required to evaluate the applicability and conformance of the R-HPDC ... Read more
Industrial heat treatment of R-HPDC A356 automotive brake callipers [Conference paper]

Author: Chauke, L ; Möller, H ; Curle, UA ; Govender, G Date: Oct 2012 Heat treatment of rheo-high pressure die cast (R-HPDC) A356 brake callipers has produced good mechanical properties on the laboratory scale. An industrial heat treatment is required to evaluate the applicability and conformance of the R-HPDC ... Read more
Industrial semi-solid rheocasting of aluminum A356 brake calipers

Author: Curle, UA ; Wilkins, JD ; Govender, G Date: 2011 Industrial semi-solid casting trials of aluminum A356 brake calipers were performed over five days with the CSIR-RCS and highpressure die casting process cell. Consecutive visual passed castings were used as the measure of process stability, ... Read more
Influence of Mn on the tensile properties of SSM-HPDC Al-Cu-Mg-Ag alloy A201

Author: Müller, H ; Masuku, EP ; Curle, UA ; Pistorius, PC ; Knutsen, RD ; Govender, G Date: Mar 2011 A201 aluminium alloy is a high strength casting alloy with a nominal composition of Al-4.6Cu-0.3Mg-0.6Ag. It is strengthened by the O(Al2Cu) phase and the ’(Al2Cu) phase during heat treatment. Further strengthening of this alloy system can ... Read more
Influence of surface liquid segregation on corrosion behavior of semi-solid metal high pressure die cast aluminium alloys

Author: Masuku, EP ; Moller, H ; Curle, UA ; Pistorius, PC ; Li, W Date: Sep 2010 The aim of SSM forming is to obtain a semi-solid structure (which is free of dendrites) with the solid present in a near spherical form. The nature of the SSM slurry (with solid spherical grains suspended in a liquid), makes it susceptible ... Read more
R-HPDC of magnesium alloys

Author: Curle, UA ; Wilkins, JD ; Govender, G Date: 2013 Flexibility of the Council for Scientific and Industrial Research’s Rheocasting System (CSIR-RCS) and its rheo-high pressure die casting (R-HPDC) technology is again demonstrated, as with aluminium alloys, by processing and shape casting of ... Read more
Rheocasting an engine mounting bracket in commercial 7075

Author: Curle, UA Date: Jul 2011 Wrought aluminium alloys are prone to hot tearing when cast into near-net shapes. This problem can be overcome by the novel casting technique of rheo-processing combined with high pressure die casting. An industrial engine mounting bracket ... Read more
Semi-solid near-net shape rheocasting of heat treatable wrought aluminum alloys

Author: Curle, UA Date: Sep 2010 Flexibility of the CSIR-RCS, induction stirring with simultaneous air cooling process, in combination with high pressure die casting is successfully demonstrated by semi-solid rheocasting of plates performed on commercial 2024, 6082 and 7075 ... Read more
Semi-solid rheocasting of grain refined aluminum alloy 7075

Author: Curle, UA ; Govender, G Date: Sep 2010 Near-net shape rheocasting with the Council for Scientific and Industrial Research Rheo casting system(CSIR–RCS) and a high pressure die casting machine was successfully performed on Al–5Ti–1B grain refined aluminum alloy 7075. Grain refinement ... Read more
Shape rheocasting of high purity aluminium

Author: Curle, UA ; Moller, H ; Wilkins, JD Date: Mar 2011 It is demonstrated experimentally that using the Council for Scientific and Industrial Research Rheo Casting System and high pressure die casting it is possible to semi-solid process and cast into a shape high purity aluminium without a ... Read more
Shape rheocasting of unmodified Al-Si binary eutectic

Author: Curle, UA ; Möller, H ; Wilkins, JD Date: Feb 2011 It is demonstrated experimentally that by using the Council for Scientific and Industrial Research Rheo Casting system and high pressure die casting it is possible to semi-solid process and cast into a shape unmodified Al–Si binary eutectic ... Read more
Wear of semi-solid rheocast SiCp/Al metal matrix composites

Author: Curle, UA ; Ivanchev, L Date: Sep 2010 Rheocasting of plates in Al alloy 359 reinforced with SiC at 11%, 27% and 50% (volume fractions) exhibits the capability of the council for scientific and industrial research-rheocasting system (CSIR-RCS) in rheo-processing and high pressure ... Read more

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Browsing by Author "Curle, UA"

Browsing by Author "Curle, UA"

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