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Calcium additions on gear pitting resistance.

Calcium additions on gear pitting resistance.

Calcium additions on gear pitting resistance.

(OP)
Does anyone have data on the effects of calcium additions on gear pitting resistance ?

                                Thanks.

RE: Calcium additions on gear pitting resistance.

Ca is added to modify the shape of MnS inclusions-- essentially it makes them undeformable, so that they break up into smaller, globular particles instead of elongating into "stringers" during hot rolling.  This should improve pitting resistance.

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