INFLUENCE OF HEAT TREATMENT ON THE CYCLIC CRACK RESISTANCE OF LOW-CARBON CAST STEELS.

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Kornev, M.I.
Kosarev, L.N.
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Metal Science and Heat Treatment (English Translation of Metallovedenie i Termicheskaya Obrabotka | 1983年 / 25卷 / 7-8期
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After normalizing, 20GFL steel possesses higher fatigue-crack propagation resistance in the 10** minus **9-10** minus **7m/cycle range than normalized 20GL steel. After hardening and tempering, 20GL and 20GFL steels have better cyclic crack resistance than after normalizing. The relationship of crack propagation resistance to mechanical properties is nonlinear. The maximum resistance is observed in 20GL steel after hardening and tempering at 500 degree C.
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页码：565 / 569
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