For some materials such as titanium, carbon steel and low alloy steel, the number of cycles to fatigue fracture decreases with ________ until an endurance limit is reached. Below this endurance limit, fatigue cracking will not occur, regardless of the number of cycles.

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The number of cycles to fatigue fracture decreases with stress endurance until an endurance limit is reached. Below this endurance limit, fatigue cracking will not occur, regardless of the number of cycles. Temperature and pressure can affect the fatigue life of materials, but they do not directly affect the endurance limit.

For Some Materials Such as Titanium, Carbon Steel and Low