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May 1, 2003


Characterizaton of Retained Austenite in Case Carburized Gears and Its Influence on Fatigue Performance

Carburized helical gears with high retained austenite were tested for surface contact fatigue. The retained austenite before test was 60% and was associated with low hardness near the case's surface. However, the tested gears showed good pitting resistance, with fatigue strength greater than 1,380 MPa.
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