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Two boride layers, having different kinds of microstructure, are formed on the surface of industrial chromium steel (13 and 25% Cr) samples during their boriding at 850–950°C and reaction times 3600–43200 sec (1–12 h). In the case of 13% Cr steel, the outer layer bordering boron consists of the FeB phase, whereas the inner adjacent to the solid substrate consists of the Fe2B phase. Each layer is a...
Results are presented from studies performed to develop a technology for obtaining ingots of sparingly alloyed titanium foundry alloy VT40L by vacuum-arc remelting in a VD5M furnace. The structure and phase composition of the alloy and the degree of segregation of the main alloying elements over the volume of the ingot are studied. The research results are used to give recommendations on a refining...
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