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Location:
Adelaide
Registered:
January 2004
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Re: Titanium conrods and cycle fatigue
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Mon, 06 September 2004 02:03
 
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I suppose the first thing so say, is that all fatigue is caused by cycles, as this creates fluctuating stresses in the part that cause small cracks or manufactring defects to move through the part, causing fatigue faliures.
As far as the fatigue limit (number of cycles) of titanium conrods compared with aluminium or steel, it depends on the tensile strenght or tensile stress (stress that has to be applied before the material will break) of the matrerials. Generally the higher the tensile strenght, the higher the fatigue limit is.
I would suspect that titanium conrods would be much better then aluminium as I suspect the particular alloy would have a higher tensile strenght. However, I am not familar with this particular alloy and couldn't be sure without doing some research that I really don't have time for (sorry!)
Steel (depending on the grade) is still probably better...
The surface finish of the part, manufacturing and the design have alot to do with fatigue. Poor machining, deep scratches, sharp corners and manufacturing defects can all lead to fatigue cracks and ultimately failure.
Hope that helps!
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| | Subject | Poster | Date |
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Titanium conrods and cycle fatigue
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gianttomato | Sat, 04 September 2004 01:35 |
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Re: Titanium conrods and cycle fatigue
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shinybluesteel | Mon, 06 September 2004 01:05 |
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Re: Titanium conrods and cycle fatigue
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ed_ma61 | Mon, 06 September 2004 01:07 |
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Re: Titanium conrods and cycle fatigue
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oldcorollas | Mon, 06 September 2004 04:57 |
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Re: Titanium conrods and cycle fatigue
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ed_ma61 | Mon, 06 September 2004 01:13 |
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Re: Titanium conrods and cycle fatigue
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Lachie | Mon, 06 September 2004 02:03 |
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Re: Titanium conrods and cycle fatigue
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gianttomato | Mon, 06 September 2004 02:20 |
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Re: Titanium conrods and cycle fatigue
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gianttomato | Mon, 06 September 2004 02:32 |
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Re: Titanium conrods and cycle fatigue
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justcallmefrank | Mon, 06 September 2004 02:36 |
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Re: Titanium conrods and cycle fatigue
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gianttomato | Mon, 06 September 2004 03:14 |
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Re: Titanium conrods and cycle fatigue
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Bugman | Mon, 06 September 2004 03:03 |
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Re: Titanium conrods and cycle fatigue
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justcallmefrank | Mon, 06 September 2004 03:28 |
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Re: Titanium conrods and cycle fatigue
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Fattony | Mon, 06 September 2004 08:48 |
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Re: Titanium conrods and cycle fatigue
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gianttomato | Mon, 06 September 2004 09:20 |
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Re: Titanium conrods and cycle fatigue
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ed_ma61 | Mon, 06 September 2004 03:32 |
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Re: Titanium conrods and cycle fatigue
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gianttomato | Mon, 06 September 2004 04:17 |
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Re: Titanium conrods and cycle fatigue
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SRacin | Mon, 06 September 2004 05:06 |
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Re: Titanium conrods and cycle fatigue
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510rob | Mon, 06 September 2004 06:04 |
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Re: Titanium conrods and cycle fatigue
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Henn | Mon, 06 September 2004 06:38 |
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Re: Titanium conrods and cycle fatigue
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justcallmefrank | Mon, 06 September 2004 10:23 |
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Re: Titanium conrods and cycle fatigue
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SRacin | Mon, 06 September 2004 23:53 |
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Re: Titanium conrods and cycle fatigue
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nicked | Tue, 07 September 2004 04:35 |
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Re: Titanium conrods and cycle fatigue
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oldcorollas | Tue, 07 September 2004 05:44 |
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Re: Titanium conrods and cycle fatigue
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ed_ma61 | Tue, 07 September 2004 06:58 |
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Re: Titanium conrods and cycle fatigue
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nicked | Tue, 07 September 2004 06:00 |
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Re: Titanium conrods and cycle fatigue
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ed_ma61 | Tue, 07 September 2004 07:09 |
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Re: Titanium conrods and cycle fatigue
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gold28 | Tue, 14 September 2004 12:35 |
