Abstract
1. An investigation was made of the phase composition and homogeneity ofreduced powders of stainless steels Kh30, Kh17N2, Kh23N18, 1Kh18N9T, and OKh18N9. The surface layers of chromium-nickel steel powders contain oxides, including spinel type phases. 2. The effect of temperature on the shrinkage, strength, structure, electrical resistivity, interparticle contact size, and phase composition of sintered specimens was studied. It was shown that the sintering of ferritic steel powders is much more intensive than that of austenitic steel powders. 3. A study was made of the activated sintering of stainless steels 1Kh18N9T and Kh17N2, based on the use of packing materials containing halides and TiH2 or on alloying with phosphorus, copper, and boron. For porous materials, it is advantageous to employ sintering in packing materials with titanium hydride.
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