Restricted accessResearch articleFirst published online 2018-9
Sintering shrinkage of uniaxial cold compacted iron: Influence of the microstructure on the anisothermal and isothermal shrinkage of uniaxial cold-compacted iron
The influence of the microstructure of uniaxial cold-compacted green iron on the sintering shrinkage was investigated. Pores in the green parts are very slightly oriented, while the dimension of the interparticle contact areas is anisotropic. A large and anisotropic anisothermal shrinkage in alpha iron was measured, greater than isothermal shrinkage at the 1120°C. The results were interpreted on the basis of the geometrical and of the structural activity, and the effective diffusivity responsible for neck growth was determined.
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