Thixoforming

Kapranos, P.

doi:10.1081/e-eisa-120051057

Cited by 1 publication

(2 citation statements)

References 7 publications

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“…The results shown above for the A201 alloy have been supported with other data produced for a number of thixoformed wrought alloys, consistently showing improvements of mechanical properties over their conventional casting counterparts [17,20,24,27].…”

supporting

confidence: 75%

“…Work at Sheffield [27] also showed that standard solution treatments for conventional wrought alloy such as the 2014 (1h at 500 0C) gave incomplete homogenization after thixoforming and that longer solution times (5h and 17h) are required for complete solutionization of the CuAl 2 . However, low hardness values in the as thixoformed 2014 were increased by full heat treatment and it was observed that for 18h ageing at 160 0 C, the hardness of 5h and 17h prior solutionized material was higher than that of the 1h standard solution heat treatment for conventional wrought 2014 alloy.…”

Section: Heat Treatment Of Thixoformed Productsmentioning

confidence: 99%

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Thixoforming of Aluminum A201- Expectations and Fulfilment

Kapranos

2019

SSP

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Thixoforming as a Semi-Solid Metal Processing (SSM) route is a near net shape forming of metals in the semi-solid state, i.e. within the freezing or melting range between the fully solid and fully liquid states. Aluminum A201 is a copper containing casting alloy with additional small quantities of magnesium, silicon and silver. Although this alloy is difficult to cast, it has a particularly high response to age-hardening and therefore offers mechanical properties close to the wrought 2014 alloy. Alloy development experiments carried out at the University of Sheffield on A201 alloy have shown that feedstock of this alloy can be produced having uniform non-dendritic microstructures amenable to thixoforming, exhibits thixotropic properties under these conditions, can be shaped into complex near net-shape parts and develops impressive mechanical properties after appropriate heat treatment. A201 aluminum alloy billets when thixoformed in the semi-solid state and heat treated with a T7 followed by T6 treatment before being mechanically tested, have exhibited properties approaching those of wrought 2000 series aluminum alloys. Here follows a review of work done to date on shaping the A201 aluminum alloy in the semi-solid state, describing the hopes, expectations and fulfilment of researchers in the field.

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supporting

confidence: 75%

Section: Heat Treatment Of Thixoformed Productsmentioning

confidence: 99%