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Room-temperature tensile strength and thermal shock behavior of spark plasma sintered W-K-TiC alloys

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The relative density and Vickers micro-hardness of W-K-TiC alloys was enhanced with TiC addition and the highest Vickers micro-hardness is 731.55. As the TiC addition increased from 0.05 to 2 wt%, the room-temperature tensile strength raised from 141 to 353 MPa. The grain size of the W-K-TiC alloys decreased sharply from 2.56 mm to 330 nm with the enhanced TiC doping. The resistance to thermal shock damage of W-K-TiC alloys was improved slightly with the increased TiC addition. | Room-temperature tensile strength and thermal shock behavior of spark plasma sintered W-K-TiC alloys