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- W2348474258 abstract "Thermal fatigue test of two kinds of WC steel bonded carbides with different WC contents was examined on self-strained thermal fatigue testing machines, and thermal fatigue crack propagation process was investigated by optical microscopy and SEM. The results show that a kind of trapezoid crack forms not only on the surface but also in the alloy, and the forming process of this kind of crack is the propagation process of the thermal fatigue crack that forms at the sample notch. Steel matrix prevents the crack from propagating, and WC hard phase induces the crack to propagate. The comprehensive effects of these two factors make thermal fatigue crack form trapezoid crack shape .It is pointed out by analyzing that making WC particles distribute uniformly in the steel matrix and increasing thermal fatigue resistance of the matrix to prevent trapezoid crack from forming are effective methods to increase the thermal fatigue resistance of WC steel bonded carbides." @default.
- W2348474258 created "2016-06-24" @default.
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- W2348474258 date "2003-01-01" @default.
- W2348474258 modified "2023-09-27" @default.
- W2348474258 title "Formation mechanism of trapezoid crack in WC steel bonded carbide under action of thermal stress" @default.
- W2348474258 hasPublicationYear "2003" @default.
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