As you probably know, the fatigue limit of aluminum alloys is zero or very
close to zero. I have no data for magnesium, but suspect the fatigue
behavior of the the alloys of that metal is similar.
| Hello Dear Forum!
| As in subject, I am in need of ANY general _comparable_
| fatigue strength characteristics (data/charts?) concerning
| advantages (disadvantages?) of magnesium alloys over
| aluminum ones (in this area).
| Would be grateful for any suggestions, time is a matter...
| DH rules
| theyvid (at) fancol (dot) com
| iseekyou: 49894592
Yeah, I know that both aluminium and magnesium alloys don't
possess the fatigue limit (e.g. in contrast to steel or titanium),
but I found some info saing that the fatigue strength of Mg
is in general much better than Al alloys anyway.
So I just need a confirmation (or a contadiction...) of this
in any realiable - and comparable - measured test results
(I have found something already, but there seems to be no way
to any make comparison - the tests were run with quite
different initial conditions).
Head for a good library...... call them before you go or look in their
Is it correct to infer that you are unfamiliar with the subject of
fatigue? If so, then there are additional references that would be
useful, such as Carroll Smith "Engineer to Win" .... a book on the
engineering uses of materials in race vehicles.
Atlas of Fatigue Curves
edited by H.E. Boyer, 518pp, 1986, ISBN: 0871702142
Contains more than 500 fatigue curves for industrial ferrous and
nonferrous alloys. Also includes a thorough explanation of fatigue
testing and interpretation of test results.
Each curve is presented independently and includes an explanation
of its particular importance. The curves are titled by standard
industrial designations (AISI, CDA, AA, etc.) of the metals, and a
complete reference is given to the original source to facilitate further
The correction includes standard S-N curves, curves showing effect
of surface hardening on fatigue strength, crack growth-rate curves,
curves comparing the fatigue strengths of various alloys, effect of
variables (i.e. temperature, humidity, frequency, aging, environment,
etc.) and much, much more.
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