Factors Affecting Fatigue Performance Of Gb 42crmo Steel Plate - China

factors affecting fatigue performance of gb 42crmo steel plate heat treatment process:

quenching and tempering (quenching + tempering) can significantly improve the fatigue performance of gb 42crmo steel, and enhance its fatigue resistance by optimizing the microstructure (such as fine grains and uniform distribution of carbides).

the fatigue performance of materials without heat treatment is poor.

surface quality:

surface defects (such as cracks, scratches, and oxide scale) will significantly reduce fatigue performance.

surface treatment (such as shot peening and polishing) can improve the surface state and increase the fatigue limit.

stress concentration:

stress concentration caused by geometric shapes (such as holes and steps) will significantly reduce fatigue life.

optimizing design (such as fillet transition) can reduce stress concentration.

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