Zobrazeno 1 - 10
of 174
pro vyhledávání: '"Hasse Fredriksson"'
Autor:
Hasse Fredriksson
Publikováno v:
SCIREA Journal of Materials.
Autor:
Hasse Fredriksson
Publikováno v:
Frontiers in Metals and Alloys. 1
The solidification of metal alloys under low gravity conditions mainly deviates in four physical properties compared with samples solidified on earth. The coarseness of the structure and the solidification temperature increase. The latent heat and th
Autor:
Abel Tadesse, Hasse Fredriksson
Publikováno v:
Materials Science Forum. 925:140-146
The volume changes during solidification of Nodular Cast Iron (NCI) in the sand mold studied using Linear Variable Differential Transformer (LVDT). Both hypo- and hyper-eutectic compositions are considered by adjusting the carbon fraction in the comp
Publikováno v:
Materials Science Forum. 925:45-53
The graphite nodule count, size distribution and homogenization of the nodules distribution are the factor which are of more significance for the properties of the material. By just increasing the inoculants or Mg will not help to get rid of problems
Autor:
Hasse Fredriksson, Fareed Ashraf Khan
Publikováno v:
Materials Science Forum. 925:125-132
In this work the effects of stirring/vigorous shearing on matrix and graphite phase in nodular cast iron melt during solidification were studied. Several experiments were conducted for different cooling and stirring times. Samples were prepared and e
Autor:
Abel Tadesse, Hasse Fredriksson
Publikováno v:
Metallurgical and Materials Transactions B. 49:1223-1235
The graphite nodule count and size distributions for boiling water reactor (BWR) and pressurized water reactor (PWR) inserts were investigated by taking samples at heights of 2160 and 1150 mm, respectively. In each cross section, two locations were t
Publikováno v:
Applied Mathematical Modelling. 54:605-626
The modelling of macrosegregation in the continuous casting of alloys normally requires resource-intensive computational fluid dynamics (CFD). By contrast, here we develop an asymptotic framework for the case when macrosegregation is driven by solidi
Autor:
Hasse Fredriksson, Abel Tadesse
Publikováno v:
International Journal of Cast Metals Research. 31:108-117
The effect of carbon on the solidification of ductile cast iron (DCI) was studied using linear variable differential transducers (LVDT) and microstructural analysis. Thermal expansion during the eu ...
Publikováno v:
Journal of Alloys and Compounds. 696:460-469
A halo occurred usually as an envelope of one phase around a primary phase in many alloys after solidification. Its formation mechanism was investigated for hypoeutectic, eutectic and hypereutectic compositions of Zn-Al alloys under conventional soli
Autor:
Hasse Fredriksson, Abel Tadesse
Publikováno v:
International Journal of Cast Metals Research. 30:159-170
The expansion/contraction during the solidification of grey cast iron was studied using Linear Variable Differential Transformer (LVDT). The experiments were conducted with and without melt treatment. Two types of inoculant used for melt treatment: A