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nicked Regular I supported Toymods Location: Sydney Registered: September 2003	Re: Titanium conrods and cycle fatigue Tue, 07 September 2004 04:35 http://www.imeche.org.uk/tribology/pdf/Luo.pdf That kind of touches on the subject, its actually about surface fatigue for automotive gears. if you could access the references especially number 5 (without paying), they could help be more helpful. Seems like that particular alloy (and ti alloys generally) have a good fatigue/endurance limit (580 Mpa @ 10^7 cycles), this seems comparable to 4340 - although i can never find the same number twice for that sort of data! The fact that it has an endurance limit is good, means (theoretically) you can keep stressing it to <580mpa forever ( ), whereas aluminium alloys the value keeps dropping to zip. But it seems they do wear pretty poorly under friction, unless treated- which is what that article's about. That doesn't really answer your piston speed q, but you get that.. its amazing how much fun you can have with other people's problems when you dont want to work on your own [Report message to a moderator]

	Subject	Poster	Date
	Titanium conrods and cycle fatigue	gianttomato	Sat, 04 September 2004 01:35
	Re: Titanium conrods and cycle fatigue	shinybluesteel	Mon, 06 September 2004 01:05
	Re: Titanium conrods and cycle fatigue	ed_ma61	Mon, 06 September 2004 01:07
	Re: Titanium conrods and cycle fatigue	oldcorollas	Mon, 06 September 2004 04:57
	Re: Titanium conrods and cycle fatigue	ed_ma61	Mon, 06 September 2004 01:13
	Re: Titanium conrods and cycle fatigue	Lachie	Mon, 06 September 2004 02:03
	Re: Titanium conrods and cycle fatigue	gianttomato	Mon, 06 September 2004 02:20
	Re: Titanium conrods and cycle fatigue	gianttomato	Mon, 06 September 2004 02:32
	Re: Titanium conrods and cycle fatigue	justcallmefrank	Mon, 06 September 2004 02:36
	Re: Titanium conrods and cycle fatigue	gianttomato	Mon, 06 September 2004 03:14
	Re: Titanium conrods and cycle fatigue	Bugman	Mon, 06 September 2004 03:03
	Re: Titanium conrods and cycle fatigue	justcallmefrank	Mon, 06 September 2004 03:28
	Re: Titanium conrods and cycle fatigue	Fattony	Mon, 06 September 2004 08:48
	Re: Titanium conrods and cycle fatigue	gianttomato	Mon, 06 September 2004 09:20
	Re: Titanium conrods and cycle fatigue	ed_ma61	Mon, 06 September 2004 03:32
	Re: Titanium conrods and cycle fatigue	gianttomato	Mon, 06 September 2004 04:17
	Re: Titanium conrods and cycle fatigue	SRacin	Mon, 06 September 2004 05:06
	Re: Titanium conrods and cycle fatigue	510rob	Mon, 06 September 2004 06:04
	Re: Titanium conrods and cycle fatigue	Henn	Mon, 06 September 2004 06:38
	Re: Titanium conrods and cycle fatigue	justcallmefrank	Mon, 06 September 2004 10:23
	Re: Titanium conrods and cycle fatigue	SRacin	Mon, 06 September 2004 23:53
	Re: Titanium conrods and cycle fatigue	nicked	Tue, 07 September 2004 04:35
	Re: Titanium conrods and cycle fatigue	oldcorollas	Tue, 07 September 2004 05:44
	Re: Titanium conrods and cycle fatigue	ed_ma61	Tue, 07 September 2004 06:58
	Re: Titanium conrods and cycle fatigue	nicked	Tue, 07 September 2004 06:00
	Re: Titanium conrods and cycle fatigue	ed_ma61	Tue, 07 September 2004 07:09
	Re: Titanium conrods and cycle fatigue	gold28	Tue, 14 September 2004 12:35

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