publication . Doctoral thesis . 2016

Mechanism of anisotropic shrinkage during sintering of metalli powders

Torresani, Elisa;
Open Access
  • Published: 15 Apr 2016
  • Publisher: University of Trento
  • Country: China (People's Republic of)
Abstract
The anisotropic dimensional change on sintering of a prior cold compacted iron was investigated by dilatometry. Shrinkage is larger along the compaction direction than in the compaction plane. This phenomenon is very pronounced during the heating ramp in alpha phase and in particular below the Curie temperature, while in austenitic field is quite poor. The results of dilatometry tests were elaborated according to the shrinkage kinetics model of classical sintering theory, to calculate an effective diffusion coefficient along the two directions, which resulted higher for direction parallel to the compaction direction than perpendicular to it. In both directions, ...
Subjects
free text keywords: ING-IND/21 METALLURGIA
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Doctoral thesis . 2016
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