Abstract
The paper examines the effect of cooling rate on the structure, phase composition, size of coherent scattering domains, and stress–strain state of relit commercially used to strengthen machine parts and mechanisms that perform under abrasive wear and high contact loads. Optical and scanning electron microscopy, quantitative X-ray diffraction, and electron microprobe analysis have been employed to reveal that higher cooling rates during melt solidification decrease the sizes of phase components in the 20 wt.% WC–80 wt.% W2C alloy and increase compressive stresses in the W2C matrix phase and tensile stresses in WC inclusions, improving the hardness of relit (by 1.5 times).
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