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Chris_seven:
Ok, now I am just a chemist and tend to deal with much smaller subunits, but isn't that what surface treatments are for - like shot peening? Put the surface under compression greater than what will cause dislocations and bam, no more surface imperfections and no more faults to lead to failure. Ti doesn't like notches, so rods, half shafts, heck - even crankshafts should be near perfect applications. Toss in a surface coating like Mo or even anodizing and short of another failure mode a rod should live forever if kept below its yeild. Now if you are saying that Ti work hardens like copper, then I learned something new.
Not all materials are perfect for everything, but for non-contact parts I would think Ti is the schiznet. Heck, even the high strength steels start getting notch sensitve.
tadd
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1967 912 with centerlocks… 10 years and still in pieces!
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