Carpenter 49 Fatigue Strength
Carpenter 49 Fatigue Strength
(OP)
Can anyone point me to a reliable source for information about the fatigue strength of this material?
Doug
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Carpenter 49 Fatigue Strength
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RE: Carpenter 49 Fatigue Strength
http://cartech.ides.com/datasheet.aspx?i=103&e...
RE: Carpenter 49 Fatigue Strength
RE: Carpenter 49 Fatigue Strength
We're using it for its magnetic properties, but there is still vibration load, therefore cyclic stress and the potential for structural failure (though we expect that it is an extremely remote probability.) Our past experience is that we have so much margin that we don't care but a new application lives in such an outrageously high vibration environment that we must consider the possibility.
Doug
RE: Carpenter 49 Fatigue Strength
If the magnetics for your applicaitons is tolerable, you can anneal at lower temeprature or shorter time to yield a higher tensile strength but wuthout sacrifice much of magnetic proeprties. The final high tem anneal for 49 alloy is to optimize magnetics with very large grains. The other thing for a better fatigue might be to purchase vacuum melted material. Some Carpenter's competitors only offer air-melted High Perm 49.