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advantages in the fabrication of high integrity near-net-shape components[6-7]. Semi-solid processing offers greater flexibility to cast certain alloys that are more susceptible to hot tearing because of their higher solid fraction. However, this advantage is not sufficient to process alloy compositions in traditional 206 alloys because they are generally very prone to hot tearing. Semi-solid processing......
on the thixotropic behavior of alloys with a spheroidal rather than dendritic microstructure in the semi-solid state, is one important branch of semi-solid processing of magnesium alloys. Components of magnesium... Conference on Semi-Solid Processing of Alloys and Composites. Achen, 2008: 43-48. [5] FLEMINGS M C. Behavior of metal alloys in the semi-solid state[J]. Metallurgical and Materials Transactions A, 1991......
nondendritic structure slurry of aluminum alloys. At present, a lot of research on the processing optimization of semi-solid isothermal heat treatment and the forming mechanism of nondendritic... processing optimization of semi-solid aluminum alloys[6-8], so it is very important to investigate the effects of the deformation temperature and rate on the compressive deformation behaviour of the semi......
; 1 Introduction Semi-solid processing offers numerous advantages over conventional technologies, such as the reduction of solidification shrinkage, low processing...]. Therefore, the major effort for semi-solid processing is focused on the generation of spheroidized grains. The spheroidized structure of semi-solid processing can be achieved by the strain-induced......
; 1 Introduction It is well known that the semi-solid metal(SSM) processing is becoming an important forming process for the fabrication of parts for magnesium alloys. In general, the SSM processing is mainly composed of three main processes: semi-solid material production, partial remelting and thixoforming. Among those, the production of semi-solid......
Tehran, Iran Abstract: Near net-shape production of complex parts with higher mechanical properties is one of the most important final goals of the recent researches on the semi-solid processing... of the most important final goals of the recent researches on the semi-solid processing. Having the knowledge of the influence of every parameter on the properties of final parts is the key......
processing (SSM) has been developed to a new technique in forming near-net-shape components since 1970s[1-2]. In such a process, semi-solid slurry, with non-dendrite microstructure prepared by stirring... requires that new methods should be developed to obtain slurry with proper microstructure for semi-solid processing. Cyclic heating treatment process before reheating has been reported to obtain semi......
and low pouring temperatures promote spheroidal morphology of the α-Al phase, when they studied the evolution of microstructure in A356 Al alloy prepared by NRC processing. To obtain the semi-solid slurry..., et al. Controlled nucleation method for formation of semisolid feedstock[A]. Proc of the 8th Int Conf on Semi-solid Processing of Alloys and Composites[C]. Limassol, Cyprus, 2004: 269－276. [2] CAO......
Trans. Nonferrous Met. Soc. China 20(2010) s758-s762 Effect of semi-solid processing on microstructure and mechanical properties of 5052 aluminum alloy Lü Shu-lin(吕书林), WU Shu-sen (吴树森... properties; fracture surface 1 Introduction A lot of researches have been focused on the semi-solid metal (SSM) processing since it was invented in 1970s at Massachusetts Institute of Technology......
by examining the metallograph and fracture surface morphology of tested specimens, which could provide reference for forecasting the microcracks in this alloy occurring in semi-solid processing. Key... are required to meet both preparation and properties of aluminum alloy parts. Semi-solid processing (SSP) is the most promising technology because its forming temperature is lower compared with casting......
