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The effect of grain boundary microstructure on the fracture resistance of sulfur-doped polycrystalline nickel was investigated using specimens with different grain boundary microstructures to reveal the usefulness of grain boundary engineering for control of segregation-induced intergranular brittle fracture of polycrystalline materials. The sulfur-doped polycrystalline nickel specimen with more homogeneous...
Isothermal decomposition processes of δ-ferrite in a 25Cr-7Ni-0.14N stainless steel have been investigated by means of transmission electron microscopy and Vickers hardness measurement. The specimens solution-treated at 1400 o C were isothermally transformed at various temperatures between 450 and 600 o C. Fine Cr 2 N platelets precipitate homogeneously in all the temperature...
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